Periodical of S.V.A.T. Astatine

7 - The Best Coffee of the UT

14 - The Toilet Paper Dilemma

29 - Evolution

10 - The Top 2000

Volume 9Number 2

February 20159-2

ContentsScience

Astatine4 From the AT Staff Herman Hemmes6 From the Astatine Board Shirley Fedder20 Photos22 ABGEHN! Teun van der Molen28 Bouldering Arnav Mundkur

7 The University Coffee Test Daphne van Dijken10 Top 2000 Boudewijn Sikkens14 The Toilet Paper Orientation Dilemma Teun Grondman29 Evolution Kevin Rouwenhorst

The “ATtentie” is the periodical of S.V.A.T. Astatine, which is issued five times a year. The ATtentie is distrib-uted among members of Astatine and employees connected to Advanced Technology at the University of Twente.

Volume 9 / Number 2 / Issue 38 Copies: 750Date of issue: February 2015

Editorial staffTeun Grondman - Editor in Chief, Layout editor / Boudewijn Sikkens - Layout editor / Frank Esselink - Layout editor / Tom Bokhove - Editor / Jasper Gerritsen - Editor / Kevin Rouwenhorst - Editor / Thijs Baas - Editor / Daphne van Dijken - Editor

AddressS.V.A.T. Astatinet.a.v. ATtentiePost office box 2177500 AE EnschedeTel. 053-489 4450Bank: 1475.73.769 (Rabobank)attencie@astatine.utwente.nlhttp://www.astatine.utwente.nl

PrinterInpakservice IJmond Tel. 0251-272 430

With thanksThijs Baas, Tom Bokhove, Daphne van Dijken, Frank Esselink, Shirley Fedder, Jasper Gerritsen, Teun Grondman, Herman Hemmes, Marloes Letteboer, Teun van der Molen, Arnav Mundkur, Monique Parfitt, Kevin Rouwenhorst, Boudewijn Sikkens

If you want to contribute to the next ATtentie, you can send in articles via email: attencie@astatine.utwente.nlAuthors remain responsible for the contents of their works.The editors preserve the right to modify or reject received articles.

© S.V.A.T. Astatine 2014, all rights reserved.

ContentsOther

p35

2 Colofon23 Interview with Marloes Letteboer Frank Esselink Kevin Rouwenhorst34 Graduations35 Cheerful Chef: Raspberry Chocolate Tart Monique Parfitt38 Puzzle: Three Riddles

Hi,

It’s going so fast! We’re already halfway through the year. I hope you have absorbed all kinds of knowledge and scored yourself a couple of ECs. We in the ATtentie have been entertaining ourselves, by writing lots of innovative stuff.

As freelance journalists, it is not only our goal to report on existing knowledge, but also to investigate and create our own. Field reserach is an important but often overlooked activity!

This edition, we have done lots of research. Daphne assembled a team of volunteers and found out which study association at the UT serves the best coffee. The results are staggering!

I went to investigate which way people like to hang their toilet paper. Seemingly trivial, you might think, but the reality is different! There are very interesting conclusions that touch down on all sorts of sociological fundamentals.

Furthermore, Kevin wrote an article about evolution and Boudewijn about the Top 2000. Of course you’ll also find the interview, cheerful chef, and Astatine news!

Enjoy and all the best,

Teun Grondman, Editor in Chief

Editorial

4

Student Contributions to the AT programmeIn Advanced Technology the stu-dents play a significant role in teach-ing and organizing the programme. Students contribute to many as-pects and in doing so they not only help in shaping the programme but they educate themselves by gaining experience in organising and teach-ing too. A valuable addition to the learning experiences offered by the AT program itself.

In the following a few examples of student contributions.

Organisation and InformationTake for instance the open days in November where information about the program is given to prospective students. AT students were running the logistics of the event and pro-vided the visitors with information from the student perspective dur-

ing the main presentation and also individually afterwards.

Teaching AssistantStudents contribute as teaching as-sistant in lab courses, projects, tu-torials, workshops, etc… Junior stu-dents learn from the experience of senior students. But also the senior students learn from the experience, because a deeper understanding is required in order to be able to ex-plain a subject to someone else.

Quality Assurance Committee & EvaluationsThe quality assurance committee typically has 4-5 students members. It evaluates modules by question-naires and panel meetings with lecturers and students. The student members contribute by organising the evaluation meetings and pre-paring the evaluation reports. The reports are sent to the programme staff, the educational committee and the board of examiners. In that way they provide a basis of feedback and improvement of the education. Important in the evaluations is also the role of the students that par-ticipate in the courses. Share your experiences and participate in the evaluation of the modules!

Educational CommitteeThe educational committee (EC) has student members next to 4 lec-turers. The programme staff act as advisory members. The EC advises

Her

man

Hem

mes

From the AT staff

Astatine

5

From the AT staffthe programme director on matters concerning the quality and organi-sation of the programme. So, not on the nitty-gritty details but on the main outlines of the program. This requires a broader view of the stu-dent members on the purpose and design of the programme. The con-tribution of the students helps the programme to evolve. But it is also a valuable experience for the student members of the committee to look at the programme from a different perspective.

AstatineOn a more pragmatic day to day level the Astatine board and com-mittees also support the everyday operation of the programme by or-

ganising study related activities. For instance by collectively ordering books, organising workshops and trainings, organising study trips, etc… Also they play an intermedi-ate role between students and pro-gramme staff when needed.

All in all students play a significant role in the everyday running of the AT programme. Not only helpful in organising and improving the pro-gramme but also a valuable learn-ing experience for the students in-volved.

It is hard to imagine an Advanced Technology without the contribu-tions of its students.

Astatine

6

Shirley Fedder

Inspiration n. - Stimulation of the mind or emotions to a high level of feeling or activity.Inspiration can be gained from the sunrise that shifts to earlier hours in the day, beautiful seasonal colors, or any nature phenomenon for that matter. Airplanes and trains that are based on structure of birds and glass that has a spider web structure inside are now common objects. I DON’T UNDERSTAND!

This year is all about inspiration and learning new things, which is how-ever not limited to the board alone. The most important thing is you! If you are a regular member or an ex-traordinary one, a member of our staff or an member of honor, a val-ued alumnus or an interesting com-pany, a treasured donor or one of our brother/sister associations, you are all of great importance to our net-work in your own way. To enhance the connections in this network we use the advanced technology way of life: Use different angles to ap-proach a challenge for the optimal solution. Through drinks, company visits, committees, the ATtentie and workshops the network tightens, inspiration is given and gained, and new things are learned. In the last weeks we organized workshops for the committees. The chairmen, sec-retaries and treasurers of the differ-ent committees were invited to join a function workshop, where they were enlightened about the ins and

outs of supporting their fellow com-mittee members.

As the board sees integration with other associations as an asset for Astatine, we reached out to our brother and sister associations to create two special events this year. S.A.Proto and S.A.Atlantis , the brother-associations of Creative Technology and ATLAS University College, will be our partners in or-ganizing a spectacular gala. NWSV Helix, S.V. Intermate, S.V. Leonardo and S.V. Subliem, our sister-asso-ciations from several cities in the Netherlands, will organize an Inno-vation Roulette with us, where com-pany cases will be solved.

Luckily, the future is open for new, different and maybe even strange possibilities and other kinds of in-spiration. Things that we can’t start to imagine now will happen and we will be part of it and maybe even help shape the world.

Op de Hoogste!

From the Astatine Board

Astatine

7

Dap

hne

van

Dijk

enScience

The University Coffee Test

Nearly everybody knows that cof-fee is a brewed beverage, dark in colour, prepared from coffee beans and boiled water, but did you know that 1600 million cups of coffee are consumed globally on a daily basis? Most students can not live without their morning cup of coffee, which is essential to survive the day, and this is probably why coffee is one of the most popular drinks in the world, second only to water.

There are countless variants on the basic cup of bean extract, besides the well-known black cuppa Joe. By adding milk, chocolate, sugar or whipped cream to a cup of cof-fee the flavour can be adjusted to one’s personal tastes. Don’t forget the infamous Espresso either –this little devil, affectionately called the ‘black shot of darkness’, is extremely strong and wakes you up instantly.

Other variants include the ever-popular cappuccino, which tradi-tionally consists of espresso with milk and a foam layer on top. Caffé

Mocha is basically the same as a cappuccino, except the inclusion of chocolate syrup means it’s slightly sweeter.

The coffee test

You know what makes having a lec-ture at 8:45 somewhere on campus far far away from the Astatine mem-bers’ room just that little bit worse? No free coffee around and having to walk all over campus to the Horst. Because of these terrible mornings, we decided to test the coffee at dif-ferent associations to see where to find the best coffee at different plac-es throughout the campus.

In the Zilverling, the associations Inter-Actief and Scintilla can be found. They share the coffee from a coffee machine above the Edu-café. In the Ravelijn, on the first floor, the study associations Stress and Sirius are located. The fourth study asso-ciation we tested was Arago in Carré and the last is our own orange As-tatine. An overview of the associa-tions:

1. Inter-Actief / Scintilla2. Astatine3. Stress4. Arago5. Sirius

After collecting the coffee right before lunch break, the first thing that was noticed is that all the asso-

8

The University Coffee Testciations had coffee ready. For Inter-Actief, Sirius and Arago this was not a huge problem since they have a coffee machine. However, Astatine and Stress, who make their own fil-ter coffee, both had absolutely no problems in getting the coffee ready on time.

Back at Astatine, a few members were asked to test the coffee and give their honest opinion. The cof-fee was served blind so nobody knew which coffee belonged to which as-sociation. The students were asked to rate the coffee from 1 to 10.

The panel was not unanimous about any of the coffees. Some coffee was rated a three by some while others gave it an eight. What most people did agree about was that none of the coffee was strong enough, the Asta-tine coffee was even seen as water by one of the students.

“Number two tastes like water!”

The Inter-Actief and Scintilla cof-fee in the Zilverling was rated as the worst coffee. Some students gave it a one and were absolutely stunned by the bad quality of the coffee- a panel member even said ‘it tastes like horse piss’. Only a third of the students gave it the passing grade of a six. This makes an average of 3.6

for the Edu-café coffee.

Coffee number four, Arago, was found to be a little bit better, but not quite good enough for a sufficient grade. The coffee located in Carré got a grade of 5.3 and was different from the others. The people’s opin-ions were divided, since some really seemed to like it while others could not stand the taste.

“Number four is different, it has taste”The second best coffee is the coffee from Stress, which, with a grade of 5.4, stands right above the coffee from Arago. The panel grading was fairly consistent for this one. It’s not the best coffee, but it will do the job in the morning.

“It is universitycoffee, so what did you expect?”The best coffee can be found in the Ravelijn, the Sirius coffee. Two people even rated this coffee with a nine, making it a worthy drink for a cold morning. With a grade of 6.3 and the vast majority rating it with

9

a sufficient grade, we can safely say that this coffee is the best one on campus.

The only coffee left is our own in Astatine, which came right after Arago’s coffee. With half of the panel rating this one as insufficient, it’s neither amazing nor terrible. Might as well drink it when you’re nearby.

In conclusion: in Carré, going to Arago is an option, but not on a daily basis. In the Ravelijn the coffee from Sirius is the best, though the neigh-bouring organisation Stress doesn’t have the worst coffee either. As for the Zilverling… get out there as fast as possible, because the coffee is just terrible.

The University Coffee Test

The end o

f the ye

ar is a

pproachin

g

as I writ

e this a

rticle. T

his means th

at

another T

op 2000 b

y Dutc

h radio

statio

n

Radio 2

is in

the m

akings.

Although th

e

list i

s still u

nknown at t

he mom

ent of

writin

g, I c

an tell y

ou about t

his yearly

retu

rnin

g phenom

enon, som

e of i

ts

history

and som

e oth

er facts

in th

is

article.

Boudewijn

Sikkens

11

A small warning: Sometimes I will state my opinion during this article as I blur the boundaries between column and article a bit. If you have a different opinion, feel free to disa-gree with me.

The conceptEvery year people can pick 20 songs they like, 15 from the existing list and 5 free choices. The songs are then put in order of popularity from 1 to 2000 and this list is published and played on Radio 2 from 12:00 on Christmas day (25th of December) until the last song is played a few minutes before New Year’s (23:50-ish on the 31st of December). Basi-cally, if you want to hear the entire Top 2000 all the way, you have to stay awake for six days straight, as it will be broadcasted without any breaks in between.

Next to the radio program you have 2 accompanying TV-programs: ‘Top 2000 a gogo’ and ‘Top 2000 in con-cert’. The first of these two pro-grams is broadcasted daily in the weeks leading to New Year’s Eve, while the latter is broadcasted on New Year’s Eve itself.

HistoryOriginally, the Top 2000 was meant to look back on the 2000 best songs of the past millennium at the turn of the millennium. This was such a large success that Radio 2 decided to repeat it the years afterwards - and

with each passing year the amount of people listening to the radio pro-gram increased. It is one of the most popular radio programs in the Neth-erlands.

From 2002 onwards, the Top 2000 a gogo, presented by Matthijs van Nieuwkerk who is aided by “Pop music-professor” Leo Blokhuis (fig-ure 1), started airing on the public television. In this program, they dive into the stories and history be-hind songs in the Top 2000 together with famous Dutch guests. Each air-ing they have a different guest on their show and they go through the Top 2000 from bottom to top.

Top 2000 in Concert has been organ-ized yearly from 2003 onwards, and at the time of writing (10 december) the concert still has to be recorded for the broadcast on the 31st of De-cember.

Top 2000

Figure 1: The presenters of ‘Top 2000 a gogo’.

12

The criticism

A lot of people complain that the list tends to be more or less the same every year, with Bohemian Rhap-sody by Queen (almost) always at the top of the chart. Another is that there are barely new songs on the

chart every time. Added to this com-plaint is the comment that only old people vote for this list, explaining the reason for the first complaint.

My opinion is that if you have voted, you’re entitled to disagree, as peo-ple have differing tastes, but I also think that a lot of the people that do complain don’t vote for this list at all. If that is the case, it’s no wonder that most people who vote are older people, as they tend to have more nostalgic feelings about music, and by extension that the songs chosen are mostly old songs. This complaint is easily voided when you vote your-self as new songs can be added. I do think that some old numbers have to stay on the list, because of the role this list serves in preserv-ing music history, but that there is enough room for newer songs to appear. In the recent years, newer songs from modern-day artists like Coldplay, Adele, Muse etc. are also appearing more and more on the list and on higher positions as the songs slowly mature into classics of what I call “this age”.

Its specific role in culture

The list not only serves the role of entertainment through music, but also serves as a means to keep track of music history through the years and the opinion of those that listen to it. Especially in a time where be-coming world famous is a lot easier

Top 2000Top 2000 in concert

Every year, on New Year’s eve, Top 2000 in concert airs on the television just before midnight. They count down to the new year, after which many Dutch and international artists perform (their) famous songs at this con-cert. A bit of the magic is lost, however, when you know that the footage is shot earlier in De-cember, meaning the countdown to the new year is really just an act by the audience as it is shot on the 16th of December.

Figure 3: The Beatles have the most songs in the Top 2000, beating the com-

petition with at least 11 songs more.

13

thanks to social media, YouTube and television, I think that there is a need to keep track of the greater hits of a time era and to split gener-ation-defining music from the more “dime a dozen” (Dutch: Dertien in een dozijn) music. Everyone can contribute to it as that is the only way to find out what is generation-defining music at the moment.

The program Top 2000 a gogo serves a different yet important role: that of teaching the audience about mu-sic history so that they can under-stand it better and enjoy it.

The final role that it has, one that people seem to forget sometimes, is that it serves as one of the many musical ways to exit the year and enter a new one.

Top 2000

Artists that appeared the most in the Top 2000 (2014)• The Beatles

(41 times)• The Rolling Stones

(30 times)• Queen

(24 times)• Michael Jackson

(22 times)• ABBA

(21 times)• U2

(21 times)• Bruce Springsteen

(20 times)• Coldplay

(19 times)• Fleetwood Mac

(18 times)• Bløf

(16 times)• De Dijk

(15 times)• David Bowie

(15 times)

Figure 4: Bohemian Rhapsody is the most (in)famous song on the chart,

which has usurped the most number one positions with 13 times

Top 5 of the Top 2000 (2014)

1. Eagles - Hotel California2. Queen - Bohemian

Rhapsody3. Led Zeppelin - Stairway to

Heaven4. Deep Purple - Child in

Time5. Boudewijn de Groot -

Avond

14

It is one of the most heavily-debat-ed dilemmas in modern age. Almost everybody has an opinion about it, and they are willing to defend it if needed. No, we are not talking about religion, politics or social issues – this problem transcends all of those petty things. Of course, we’re talk-ing about the Toilet Paper Orienta-tion Duality, which I’ll abbreviate to TPOD for convenience (pronounced as Tea Pot). How do you hang your toilet roll, Over or Under?

One merely has to google Toilet Pa-per Orientation and they will find almost half a million webpages mentioning the subject. Wikipe-dia spends over 5000 words on it, and references literally hundreds of sources. One Facebook page has over 16,000 likes and there is even an active Facebook group called ‘People That Pull Their Toilet Paper Under Are Retarded’

To a cultural outsider, it all might seem incredibly insignificant on a first glance. However, the strong preferences are understandable and explainable when taking a more in-depth look at the issue. I think there are two main reasons why the TPOD battleground is so strongly polar-ized.

1. It’s a culture thingPeople grow up using toilet paper. Excluding a person’s first and last three years of their life, they will find themselves using toilet paper literally every single day. And hab-its that people develop from early childhood will become strongly rooted in one’s brain, to the point that it feels utterly appalling to change them (examples: religious beliefs, the colour of Zwarte Piet).People growing up in an ‘over/under-orientation household’ will most likely adopt those dogmas and value them as ‘the one true

Teun

Gro

ndm

an

The Toilet Paper Orientation Dilemma

Science

Over Under

15

way’. When asked why they choose one orientation over another, they might answer something like “It is just how it should be, y’know?”

2. It’s a private thingA lot of beliefs are regionally con-centrated. In the Netherlands, al-most everyone eats the same way, adheres to the same Judeo-Christian ethical value system and listens to the same Anglosphere music. This is regional homogeneity is caused by the diffusion of cultural values trough upbringing, mass media, lan-guage, education and socialization.But there is no media, education or socialization based on toilet paper orientation. The issue remains a solely private thing and everyone develops their own opinions with minimal interference or diffusion from the outside world. Therefore, two very similar people can still have very different opinions about toilet paper!The TPOD is not related to culture, race, religion or other sensitive sub-jects, but everyone has an opinion about it. This makes it a nice and seemingly harmless subject to dis-cuss and research. It relates to noth-ing in particular and that’s why it fascinates me!

Practical argumentsUntil now, the Over and Under orientation were discussed as be-ing completely equivalent to each other. However, there are of course

some practical differences which might cause one to prefer Over over Under or Under over Over.

Four Reasons Why Over > Under• It’s easier to locate the loose

end.• You won’t accidentally scrape

your hand across the wall when gripping the paper, so you’ll avoid nasty wall-germs.

• Toilet paper manufacturers prefer Over, so paper with pat-terns or drawings will be dis-played the right way.

• In hotels, the end of a roll can be folded a certain way to in-dicate that the room has been cleaned.

Four Reasons why Under > Over• The loose end hangs neatly

near the wall and might look more visually appealing.

• Little kids or pets can’t as easily unroll the complete toilet roll by rotating it towards them.

• It’s easier to roll up excess toilet paper.

• Though debated, one-handed tearing is found to be easier.

There isn’t a consensus on which orientation is the most paper effi-cient. There have been several, but contradictory studies, so not much can be said about that.As you can see, there are plenty of pros and cons for either case. But none of these reasons are con-vincing enough; otherwise there

The Toilet Paper Orientation Dillema

Science

16

wouldn’t still be a debate going on. So instead of finding out which one is better, we’ll try to find out who chooses which.

Numerous studies and surveys have been performed in the past, correlating the roll preference to age, gender, political ideology and socioeconomic status. Those cor-relations have been found, though they’re not very strong. But all of the surveys found that the Over ori-entation is preferred more, with a majority ranging from 53% to 73%. There have not been found signifi-cant correlations with age or gen-der.

However, correlations with other personal qualities have been found. Rich people and politically progres-sive people are more likely to prefer Over. There are suggestions from psychologists that socially extra-vert people might also prefer Over, but there are no conclusive results to back those claims.Keep in mind that these are corre-lations, not causations! It is possible that one causes the other, or vice versa, or that both are caused by a third factor, or that any correlation is just coincidence.

The TPOD on theUniversity of Twente!Of course, I wasn’t satisfied with all these previous results. None of the surveys were conducted in the

Netherlands! Are there really no correlations with age or gender? And what is the deal with extra-/ introvertness?

So I did my own little survey, con-ducted amongst people from the University of Twente!I made a simple poll in Google Docs with four, very basic questions:

1. Over or Under?2. Are you Male or Female?3. How extraverted do you con-

sider yourself (1-7)?4. What’s your age?

I’ve deliberately kept the question about extravertness very open to interpretation. What even is extra-version, and how reliable is rating yourself? It is so difficult to answer these questions that I just disre-garded them. Judging yourself is a straightforward method to still get some insight (though perhaps not highly accurate or scientific).

I posted a link to the survey in the Astatine Facebook group and anoth-er in the group ‘University of Twen-te - Marketplace’, a group where students usually sell stuff to each other. Since this group has over 7000 members, most likely involved at the uni, I consider it a decent way to reach lots of relevant people.

The response was overwhelming. The first 100 results arrived within

The Toilet Paper Orientation Dilemma

17

25 minutes. Within an hour there were 212, after 24 hours that num-ber had grown to 700. Finally, the responses slowly died out and the final result was a staggering num-ber of 778 people who participated! This sample size comes very close to the amounts of other official stud-ies, and it is large enough to be very representative! Meanwhile, the Fa-cebook post itself had garnered 58 likes and over 40 excited comments.

Time for some number crunching The results were put in an Excel file and I performed quite a lot of data analysis on them. Here are some results. In the figures, Blue implies Over and Red is Under.

The Toilet Paper Orientation Dilemma

TPOD choices per group of people

Average properties of Overers, Underers and Don’t Carers

Over Or Under?

Male or Female?

18

We can extract a lot of interesting data! Overall, the majority of Over is as expected, and even quite strong compared to other studies. 86.38% chose Over and only 6.30% voted Under. The rest chose Don’t Care (D/C). We can also examine the de-

The Toilet Paper Orientation Dilemma

Introvert - Extravert

Age

Graphical Representation of TPOD choices per group of people

19

mographics of the survey. As you can see in the tables, there are more males than females (61% vs. 39%) and the average extraversion is 3.9 on a scale from 1-7, very close to the middle. The average age is 24 years and 3 months, and the most com-mon age is 21.Interestingly, there are correla-tions, especially with age and gen-der! These are some of the findings:

• People above 30 prefer Under almost twice as often as people below 20.

• Young people tend to not care about the TPOD, in comparison to older people.

• Males are way more likely to fill in D/C than females: out of the “don’t carers” 71% is male.

• Females are more likely to choose the Under orientation than males: though there are significantly more males than females in the group, the gen-der ratio amongst ‘Underers’ is almost equal.

• Extraverts (5-7) are more likely to fill in D/C, whereas intro-verts (1-3) most often do make a choice.

• The “don’t carers” are overall the most extravert.

• Those who choose Under are marginally more introvert than those who choose Over.

Overall ConclusionThe results are very interesting! Several findings make much sense and surprisingly there are lots of correlations regarding age and gen-der. Indeed, suggestions that ex-traverts prefer Over do have some substance.

My personal choice? I’m a fervent Under person. I will change the roll when it’s the wrong way around. I have no practical reason why, though! I like how it looks. It is just how it should be, y’know?

The Toilet Paper Orientation Dilemma

...or it is the other way around

22

Come all! Gather ‘round the fire and hear my tale, for it is a tale for sjaars and ouwe lul alike. I say, grab a flagon of ale and shut your yap, for our story begins long ago on a crowded bus in the east…..

Hahaha. A small group of young AT students are telling stories and laugh-ing to kill some time

inbetween the companies. Their eyes are weary from a lack of sleep and their veins still pulse with last night’s Hofbrau, but their minds are sharp as they crack jokes about committees. “Yes, the VerificaCie, to check all unsure facts, is bound to be the funniest committee.” says one. “No, surely the FalsificaCie, to make lies, is more merry.” says the other. “How about the SjaarCie?” says the third.

But, just as he is about to explain the details, the bus grinds to a halt. The students are filled with horror as they turn around to see the road filled with a bagizilion cars (which is of course the technical term). The sighs of agony echo through the bus as all the students begin to realize that they are stuck in every foreign trip’s worst enemy: the jamming of the traffics! Yet, just as all seems lost for our students, something grand is about to transpire.

A whiff of beer and bratwurst spreads throughout the bus, as well as a red, black and yellow hue that glooms over all the students. Then, with the sound of Mercedes and Trabant alike, the single most pow-erful word that was ever to be an As-tatine committee was roared:AAAABGEHNNNNN!!!That very moment, just as the sea of cars parted like the red sea to allow the chosen students through, the Abgehn committee was formed (in spirit at least), which brings us to the present once more.

This article was written to inform people about the Abgehn commit-tee and what we do. That is why the article was written as a fun, not too serious and entertaining story, be-cause that is what the abgehn is all about (for extra lulz, pronounce last word with a Canadian accent). The aim of the committee is to increase the entropy of Astatine by organiz-ing fun and weird activities such as the werewolf evening. A lot more interesting events are in the mak-ing, so be sure to keep an eye out for those Abgehn posters. And finally, a list of Abgehn members (try to de-code them all!):

An Ozi, Tinus, mister art school, A dude who is also a wizard(virgin), the frysian separatist, the cat of As-tatine, Mattie, she who must be jok-ing, Theaumas, practicum girl and that new redhead!

Teun van der Molen

ABGEHN

ABGEHN

23

InterviewInterview with Marloes Letteboer

Fran

k Es

selin

k &

Kev

in R

ouw

enho

rst

Where are you from?

I was born in Losser, which is in the neighborhood of Enschede. I grew up there. It was not precisely eventful, as it is a village. During my secondary school period I was taught in Oldenzaal, at the Carmel college, as there was only a MAVO in Losser. In contrast with the currently used system, there were no fixed curricula or profiles. As I did not yet know what I would want to do later, I took languages, economy related subjects and beta subjects, so I could decide later on. I had a very broad profile, from business economy to physics or chemistry; the world was still open for me.

What did you study?

I studied applied physics at the University of Twente, from 1993 until 1999. Afterwards I have been in Utrecht for ten years, to do PhD research for five years and to coordinate an educational program for five years.

How did you choose appliedphysics?

Nowadays I am very busy with the question how people choose their study, especially during the open days. I did not really choose my study in a determined manner, however. I just looked around and at some point my physics teacher asked me: ‘Might physics be something for you?’ Then I went to the open day and attended a lecture and then I ended up doing physics. I don’t believe there were many well overthought choices made there.

How did you experience life as astudent?

It was really fun. I was active at the study association, not doing a board year, but doing various smaller committees. I still know when I started working here, so after I had become head of applied physics, I told a teacher: ’When I had dynamics it was like this and that.’ Then he told me: ‘I taught you.’ I couldn’t remember he had taught

24

Interview with Marloes Letteboerthen. I think, when you would compare the situation then with the present, there was way less stress to finish your assignments in time. There was an attitude of, if it isn’t done this year, it will come next year. I also experienced it like this as well and found it quite relaxed. If you didn’t want to do a subject in this quartile, you would just do it next quartile.

You have been a long term student?

It took me six years to finish my study, from ’93 until ’99, and it was a four year-long study by then. The year after it became a five year-long study. It is a similar situation to that of the current third-year students. Therefore, if you did not finish your study in four years, you would get delayed, as you came into the five-year system. I think I was not one of the brightest students.

However, I really enjoyed my thesis. I did biophysics and in the end there were quite some subjects I wasn’t really interested in. Then the master also consisted of the last two years of the curriculum and you could finally do what you really liked. For me that was biophysics, which is nowadays coordinated by Weindelt Steenbergen. As I enjoyed it, I became motivated to do a PhD and research, while beforehand I thought I wouldn’t do that.

You did your PhD research in Utrecht, how did your life look like then?

I did research at the academic hospital in Utrecht and officially I have my PhD title in the field of medicines. This was because I worked at the hospital, though I worked at a really technical subject. I did research on navigation systems for operations, so you could navigate during the operation using the images made before the operation, for instance MRI scans. By then this technique was at the pioneering stage and we had the very first apparatus in Europe. I worked together with a neurosurgeon in the operation room, doing measurements. I like the applied part of physics.

How did you come back to the University of Twente?

During my PhD research I already thought I am no researcher, however I finished my PhD. I noticed I don’t enjoy long term thinking. PhD research takes about four years, and that is quite a while. In my last year of the PhD research I doubted whether I would finish it. Eventually I did an internship at natuurwetenschap en techniek (science and engineering) and I also did courses in science journalism. My supervisor asked me: ‘Why don’t you stay here?’ It was the period

25

Interview with Marloes Letteboerwhen the bachelor-master-system was introduced and my department wanted to start a master program, without bachelor, about medical signal processing. I stayed, and together with two colleagues I set up the program and within two years I sort of became the study.

If you didn’t like me you had a problem, as I was study advisor, coordinator and in every quartile I gave a subject. Students from physics, informatics and BMT came to the study, so you had to learn one half to program and the other half didn’t have sufficient mathematics. At some point, when the level was equalized, you could go into the depth and we also did many assignments in the hospital. I did this for about five years and in the meanwhile I gave birth to two children. Then I wanted to do something new and at the University of Twente they sought a program director for applied physics. Within a short while I was program director.

What is your function within AT?

During the introduction of TOM initially there was the idea to make clusters of the programs AT, ST and TN and for these clusters there would be an educational director, me. I am the representative of this cluster in the UCO (university committee of educational affairs),

so I led the coordinators and study advisors of AT.

On the other side TN does two modules together with at, thermodynamics and signal processing. In the fundamentals of materials modules there is some overlap as well. I asked Herbert Wormeester: What is the difference between the AT and TN students and how can we combine that? What are their capacities? Furthermore I’m involved during the open days and as you can choose two programs, often new students choose both TN and AT for a session. Then it is evident to be able to show the difference.

What is your evaluation of the first year of TOM?

When I look at TN, in general I am quite satisfied. If one would have told it would go like this, I would have signed blindly. I thought there would be many more problems; however this doesn’t mean there are no problems. The biggest problem in TN and AT was the form of math. How can we incorporate it in the module, not being some abstract incoherent part?

Another question is: How much content is in the modules? The departments always try to pack as much content as possible and sometimes you have to take a

26

Interview with Marloes Letteboerstep back. The part of TOM which went above my expectations is the principle of 15 ECs. I thought more students would slip through the safety net. In all three TNW programs there is a very natural separation between students who passed three modules and those who passed one or zero modules. The group of two modules is very tiny, which I had expected to be bigger. TOM makes the distinction somewhat more clear however; where people would doubt for a longer time in earlier years, now they quit earlier in the year.The big pro of TOM is that more first year students have finished their year. In the second year and especially in the third year there is more space to shove, so it is easier to arrange a retake. For technical studies many second and third years subjects elaborate on the fundamentals of the first year. If we can make sure even more students score 60 ECs instead of 45 ECs, by means of retakes in the summer or a reconsidering of the compensation, I think you can still improve. In the second year you have more time to do something next to the study, however I still think it is the responsibility of the students.

I read that the program IO does not approve activism for first year students, but I still think it is your own choice and activism isn’t

bad. Of course you shouldn’t do a board year in your first year, but organizing a parents’ day or doing another minor committee is never bad. I mean, what is the next step? You cannot have a job or a sport next to your study? I think students should decide how they shape their life and it is only great when people think out of the box.

If AT would have existed when you had to choose a study, would you have chosen it?

I have thought about it sometimes and I would have considered the broader studies like BMT and AT. When you look at my later career, you can see I have a broader interest than only physics. I might have chosen BMT, because of the medical calling and the bigger amount of females at the study. If it would have been a better choice, I don’t know. I think physics was good for me as well, as I was forced to look deeper into subjects.

In my time you had mechanical engineering and chemistry as well, but I knew I didn’t want to study these fields and in electrical engineering there were no females at all. I also looked at design programs, much like industrial design, but they were too creative for me. On an open day I got a lump

27

Interview with Marloes Letteboerof clay and I had to create something without thinking about it: nothing for me.

Do you have any hobbies?

I do have hobbies, yet my time is limited, as I have two children. At the moment, the only thing I can find time for is sports and painting. I would wish I have more time for it, but have always drawn and painted a lot. I try to make more time for it nowadays.

Where do you live and how is living there?

I live in Hengelo. In earlier years I used to live in Woerden, but there were traffic jams everyday on the road to Utrecht. My husband works at Thales, a company located in Hengelo. We can even go to work by bike. Thinking of an ideal living place is a different question with and without children. Without children I would want to live in the center of the city, but with children the borders are finer. We live in some kind of fake Hengelo, as most occupants in the new neighborhood are from outside Hengelo. There are many schools and children in this neighborhood of import Hengelo. Who is your favorite scientist?

Good question… What I appreciate, and it is really close, is an old

student of TN, Diederik Jekel. He is not really a scientist anymore, but he opens the scientific world for a broad public. I have a big admiration for him, which might be because of my journalistic background. I can really enjoy it, when I watch Klokhuis together with my children and my son of five can (in some sense) explain how a satellite works. It is fascinating to see how interested little children are in science. Somehow, on the way to adulthood they lose this interest. As education director I always think: how can I get more students to the study programme? Where do you lose them?

It is somewhere between the first year of the elementary school and the end of the secondary school where they make different choices. However, we see an increasing amount of children interested in technique due to the increasing amount of technique around them. My husband works at Thales and from time to time my children ask him questions like: How do radars work? This is a very different kind of content than taught to them at school. They mostly work on language and counting, and tinker with them. They don’t answer the technical questions.

28

On the 15th of October, SportCo or-ganized a bouldering event at the Cube in Enschede. We met up at the Cube at around 19:30 and I was initially disappointed at the turn out. Only four students turned up!

But my mood quickly changed once we start-ed climbing. The small

group allowed us to challenge each other and push ourselves to

climb the harder walls.

For those of you who are unaware of what bouldering is, it is essentially rock climbing albeit the climbers aren’t wearing a harness, they don’t have any ropes attached to them and they don’t have some-one billeting them from the ground. The maximum height of each wall is four meters and there is a nice thick mat for climbers to drop on to if they fall. Though some of you might think that four meters is not that high, the complexity of the routes set up do not depend on the height of the wall.

A “route” so to speak, is a series of the same colour of grips beginning somewhere at the bottom of the wall and ending near the top. The beginning of the route was marked by two black strips of tape. Each col-our corresponded to a different lev-el of difficulty. The green route was the easiest while the black route was by far the hardest.

At the beginning of the evening I think we were all a bit overconfi-dent and as we kept climbing and our arms started getting sorer and sorer we realiszed that maybe- it wasn’t all that easy at all. We also discovered the importance of pow-der as when you climb for long pe-riods of time, your hands get sweaty and they start slipping from the grips, leaving behind a small bit of skin on the grip itself and your hand with a nice red welt.

It was a great evening and we man-aged to progress from the green dif-ficulty level to the brown difficulty level. A couple of us attempted the black difficulty level but gave up when we realised that there were literally no hand holds available. We concluded that no one short of Spiderman would be able to climb it. I had lots of fun climbing all the way to the top of a route and then jumping off the wall and landing in a sprawling mess on the mat below.

I highly recommend attending the next bouldering event or any event for that matter, organized by SportCo, as they are a hard working group that puts a lot of effort into organizing these events and would really appreciate it if the turn outs for their events are better than 4 people.

Arnav M

undkur

Bouldering

Astatine

29

Evolution: a long, long time ago?K

evin

Rou

wen

hors

tScience

From a miniscule organism we evolved from the water to land. Years of terror from the reptile side came to our ancestors, yet here we stand, adapted to the world as it is today. Throughout the years, after the dinosaurs died about 66 million years ago, we developed from an on four limbs relying ape-like tree dweller, Australopithecus afarensis, into the humans we are now, Homo sapiens. Evolution by means of sur-vival of the fittest, in other words the ability to withstand the world at its current state and to adapt to a certain change in environment, was our biggest talisman. Does evolution guide us throughout the future or will we remain as we are?

Before we can answer this question we travel back in time, three million years. This is when our ancestors, afarensis, are found in Ethiopia. The most remarkable feature of these ape-men is their ability to walk on two legs, making them able to see more of the world. However one might think this makes them the rulers of the world, this is not the case. Walking on two legs makes the ape-men better visible from far and thus vulnerable. Furthermore walk-ing on four legs is initially a faster way of movement. However, the main advantage lies in an underly-ing evolutionary concept: propaga-tion. As walking on two legs saves a tiny amount of energy, more energy is saved for sex and therefore for re-

production.

Besides walking on two legs afa-rensis showed the first signs of emotions like grief. Furthermore orphaned babies would be adopt-ed by family members of the de-ceased mother. Both a more social way of living, much like that of the present-day bonobo’s, and an in-creased chance of survival create a world which is soon engulfed with ape-men species like, Paranthropus boisei, Homo habilis and Homo ru-dolfensis. Around two millions year ago these ape-men all specialized in different habitats, although the boi-sei didn’t. These tall, on the ground living, herbivore apes, specialized in eating termites and grasses. Be-ing too heavy to move in the trees, these well-thriving ape-men in the current habitat are the current king of the apes. Clearly they focused on the current world, in contrast with the habilis, a jack of all trades. These ape-men were smaller, more agile and, most importantly, omnivores. However they thrived less in this current world, their habit of eating meat had a positive effect on their ability to evolve. When the world changed and an Ice Age came, the boisei weren’t able to adapt, but the habilis were.

As the Homo habilis were changed by the habitat, a new species evolved, the Homo ergaster. As the world grew warmer again, after a

30

Evolution: A Long, Long Time Ago?vicious Ice Age, hairy skins trans-formed into the bare skins as we know them today. On the dry open fields of Kenya the ergaster hunted by fatiguing the prey. This was made possible by the concept of sweating. As during and after an Ice Age just a little amount of plants are available, the ergaster was mainly a carnivore, giving rise to their brain capac-ity. The social behavior was signifi-cantly improved as well, by living in tribal societies, with genuine bonds between men and women. Though

this may seem very humanlike, ape-like behavior in the form of violence was still frequently occurring.

The first technology was introduced by the ergaster, as axes were made out of stones. However, as they used them, their world was as it was and no improvement was needed. Their living style was successful in this climate, which meant no evolution. For a million years, the technol-ogy didn’t develop. Only a dramatic change, by means of harnessing

31

Evolution: A Long, Long Time Ago?

fire, brought the evolution further. These ancestors, now evolved into Homo heidelbergensis, spread over Asia, Europe and Africa, with the latter two being most important. These ape-men physically look a lot like the current humans. They are intelligent and sensitive, show-ing a strong bond with their living relatives. Heidelbergensis misses one crucial step till the success of the current humans: imagination. Our ancestors still cannot reflect the processes happening, but react instinctively. They for instance can-not comprehend an afterlife, as it isn’t here and now.

The final step in the evolution is a fratricidal between the Homo nean-derthalensis and Homo sapiens. The neanderthalensis lived in Europe and adapted to the vicious Ice Age. They were strongly built and their wide noses made sure they wouldn’t sweat, as sweat would freeze. These small, broad Neanderthals thrived relatively well in the cold, espe-

cially in comparison with the Homo sapiens idaltu, who lived, or rather died, in the heats of Africa. For the humans it was survival of the fit-test in its purest form. As only the strongest and most innovative per-sons survived, the Homo sapiens evolved. Where the Neanderthals evolved in physical sense, the brain capacity of humans improved. The latter eventually proved to be su-perior, as the two species came into the same living region, resulting in the extinction of the Neanderthals around 40,000 years ago.

Recent evolution

One might think evolution is a story of long ago, but this is not exactly the case. Even in the last 10,000 years our evolution went on, faster than ever. A first sign might be the ability to drink milk of cows, sheep and goats. This was made possible by a genetic mutation, giving the in-dividuals a better chance to propa-gate their genes when reproducing.

32

Evolution: A Long, Long Time Ago?

A second sign comes from our den-ture. Our ancestors ate more rough food than we do nowadays. They didn’t brush their teeth and when the first whiskers had rotten away, there were the wisdom teeth. Nowa-days we treat our denture with more care and we have a finer diet, so we don’t need wisdom teeth anymore. More and more people are born without wisdom teeth, about 35 per-cent of the population. A third sign is the adaption to diseases. While malaria plagues the African conti-nent, more and more people become resistant to the disease. Survival of the fittest works here, yet we have to consider whether this also works in the modern western world. A sign is given by the resistance to tuber-culosis and leprosy, which is found to be higher for city-dwellers than for the rural population.

The laws of nature do not permit evolution without a cost. As New-

ton’s third law explains, when you create something, you leave some-thing behind. A first example is the color of our eyes. A mutation in our genes caused the introduc-tion of blue eyes, whereas before only brown eyes existed. This might have been a limiting factor for the amount of humans, as blue eyes are caused by a recessive gen. Even though nowadays the genes are in-termixed, back then and even now females and men with blue eyes are on average more attracted to each other than to their brown-eyed fel-lowmen. As two blue-eyed parents cannot produce brown-eyed off-spring, this process ensures fidel-ity. Furthermore, by laws of nature, a blue-eyed man wouldn’t invest his paternal resources in another man’s child. This is prevented by the color of the eyes. A more dra-matic change, however, is found in our brains. By instinct one would say we are king of the jungle, as

33

Evolution: A Long, Long Time Ago?we have big brains. Nowadays our talisman in the evolutional ladder seems to abandon us; our brains are shrinking. Over the last 30,000 years we lost about the size of a tennis ball. This can only mean one thing: information is lost. How valuable this information is for us remains to be seen. A positive evolutionary aspect is the energy gain, as we have thrown out old and unused mecha-nisms. Another explanation for the decrease in brain size might lay in the growing population, namely brain size decreases as societies in-crease. This might sound harsh, but we have become less aggressive and collaborate more. Therefore not all of us need the same qualities. What-ever is the reason for the shrinkage of our brains, energy is saved and energy gain means an increase in sex and thus reproduction (and now we have 7 billion humans dwelling this earth).

Nowadays we turned the classical models of evolution around. Instead

of adapting to the environment in earlier years we now adapt the en-vironment to us. The houses, elec-tricity, engines and devices make it possible to keep the standards at our needs. We don’t even hunt any-more (or at least most of us). In the supermarket we buy anything with money. Instead of direct expression of value we chose for money, which was a recent innovation made pos-sible by our imagination. A problem we still have to overcome has to do with food. Firstly we see an un-equal distribution of food around the world. Where on one side of the world people are starving, on the other side people are becoming more and more obese. A next step in evolution might be induced as we take a drastic step, by changing our food habits. A good alternative is given by the idea of SoyLent(See: Attentie 9-1). It remains to be seen if this step is quickly adapted by us, humans, as we are stubborn and like our food way too well.

34

Below you can find all the people who graduated Advanced Technology since our last edition together with the research group where they did their bachelor assignment.

Congratulations!

• Larisse E. Keim Waterschap Limburg / Water Engineering and Management (WEM)

• Ye Wei Quantum Transport in Matter (QTM)

• Michaël van Witsen Interfaces and Correlated Electron Systems (ICE)

• Tjalling de Boer Rotec Engineering / Mechanical Automation (MA)

• Bas Haarman SmartTip / Transducer Science and Technology (TST)

• Sander Logtenberg Inorganic Materials Science (IMS)

• Cees Trouwborst Robotics and Mechatronics (RAM)

• Wout Oude Elferink Cybersecurity and Safety (SCS)

• Koen ‘t Hart Thermal Engineering (TE)

• Christian Deenen Inorganic Materials Science (IMS)

Graduations

35

Hi everybody,It’s time for another sweet recipe: a chocolate and raspberry tart! This recipe looks complex, but apart from patience, no special skills are needed. And you definitely will im-press your friends and family with the result! Ingredients for the dough• 350 g flour• 125 g butter (cold)• 125 g sugar• 2 eggs plus 1 yolk• pinch of saltIngredients for the raspberry jam• 250g raspberries• 175 g (jelly) sugar• juice of half a lemon• 100 ml water• 2 bags of vanilla sugarIngredients for the chocolateganache• 250 g dark chocolate (prefera-

bly with a cocoa content > 60%)• 250 ml double creamMaterials• tart tin with loose bottom

(approx. 23 cm Ø)• parchment paper• flour for dusting• butter for greasing• one egg (beaten)• brush• large saucepan• small saucepan• two mixing bowls• rolling pin• (ceramic) baking beans• several spoons and spatulas

To make the doughStep 1: Combine the flour and salt in a mixing bowl.Step 2: Flatten and soften the cold butter by smashing it with a rolling pin between two sheets of parch-ment paper. You want to end up with a slab of about 1 cm thick.Step 3: Add the butter to the mix-ing bowl and cover it in flour. Flake the mixture by rubbing the butter between your fingers until you have shards of butter of about the size of your fingernail.Step 4: Add the sugar and mix it evenly.Step 5: Add the eggs and mix eve-rything together. It is easiest to use a dough scraper for this step, but a spoon or just your hands will also do the job. Don’t be tempted to mix your dough for too long, as this will result in a tough pastry. When your dough has the texture of plasticine (it should not be sticky or dry) you are done mixing. Step 6: Form the dough in a rectan-gle, cover it in parchment paper and let it rest in the fridge for at least 30 minutes, but preferably overnight. (You can use this time to make the other ingredients.)Step 7: Get the dough from the fridge and place it between two sheets of parchment paper. Rol it out with the rolling pin. You don’t want it to be thicker than 5 mm, a thickness of about 3 mm is ideal.Step 8: Grease the tart tin and cover in flour. Tap out the excess flour and

Mon

ique

Par

fitt

The Cheerful Chef

Recipe

36

The Cheerful Chefline the tin with your dough. This can be easily done by peeling away one of the sheets of parchment pa-per and flip the dough (dough side down of course :) ) into your tin. Remove the second piece of parch-ment paper and press the dough in all corners and creases of your tin. Use excess dough to cover up tears and holes. I always leave an excess of about 1 cm dough over the sides of the tin that I trim away after bak-ing.Step 9: Use a fork to prick a few holes in the bottom of the dough to prevent rising, line it with a sheet of parchment paper (you can reuse one of the sheets you used for roll-ing out your dough) and line it with baking beans. There are special ce-ramic beans available, but you can also use dried beans or rice. How-ever, you cannot eat this anymore after baking! Place the tart tin in the fridge for 30 minutes or in the freezer for 15 minutes. Meanwhile, preheat the oven on 190°C.Step 10: Bake the pasty case for about 15-20 minutes blind. Regu-larly check if the bottom is already dried out and if the pastry has very lightly coloured, the baking time strongly depends on the thickness of your dough and the size of the tin.Step 11: When the bottom of the tart is dry, remove the parchment paper with the baking beans and brush the pastry with the beaten egg (you will not use all of the egg). Put the tin back in the oven.

Step 12: Once the pastry looks gold-en brown, remove the tin from the oven and let it cool.Step 13: Once cooled, use a knife and trim the sides of the tart horizontal-ly following the height of your tart tin. You are now ready to fill your tart!

To make the jamStep 1: Wash your raspberries (not necessary if you use frozen rasp-berries) and put them in the large saucepan, together with the water and the lemon juice. Bring to a boil and cook for 15 minutes. Use a spat-ula to crush the raspberries.Step 2: Add the sugar and vanilla sugar, and cook for another 15 min-utes. Continuously keep stirring, as you don’t want your jam to burn!Step 3: Remove from the heat and let the jam cool down. I put it in a container straight away, as I did not want the heat of the pan to contin-ue cooking my jam. You can keep your jam for about two weeks in the fridge.

To make the chocolate ganacheBreak the chocolate in small pieces and put in a bowl together with the

37

The Cheerful Chefdouble cream. Put the bowl on top of a pan with simmering water, with-out the bottom of the bowl touch-ing the water. Regularly stir your ganache, to distribute the melted chocolate. When all chocolate has melted, your ganache is done.

To assemble the tartSpread a royal layer of the jam on the bottom of the pastry case. Pour the warm chocolate ganache on top of the jam to your taste. Let the ga-nache firm up in the fridge. You can garnish your tart with some fresh raspberries or some chocolate fig-ures, but you can also leave it as it is. You are now ready to impress!

Tips and tricks- You will have quite some excess on all ingredients, and, depending on the size of your tins, you can prob-ably make two tarts from these in-gredients. The dough and chocolate ganache are also very freezable so you have them on hand for another time. I personally would not freeze the jam, just enjoy it on your sand-wich! Of course, you can also use the chocolate ganache as a chocolate spread

- The best result is if you pour your chocolate ganache over your jam, as this will result in a very smooth layer. If your ganache has cooled down too much, or if you are using it from the freezer, you can reheat it au-bain-marie (the same way as you have melted the chocolate) to liquidise it- I would advise to leave the tart in the tin until it is completely fin-ished, or just before garnishing. To remove it from its tine, place the bottom on top of a jar, and carefully slide the ring around the sides down. Be very careful, because if you have properly greased and dusted your tin, this will be very easy, and the tart can also slip from the bottom part of the tin! Slide the tart onto a plate or cake stand so you don’t damage the outer coating of your baking tin when cutting it- If you think making the pasty for the bottom is too difficult, you can in some stores buy ready-made pastry, and sometimes even ready-made pastry cases.

I hope you enjoyed this recipe and love it as much as I do. If you have any questions, either concerned to this recipe or some cooking ques-tions in general, please do not hesi-tate to e-mail me at cheerfullchef@astatine.utwente.nl. If you have tried one of my recipes, I would love to see a picture or a review, and sug-gestions for recipes are also wel-come of course!

38

Three puzzles

PuzzleThe last puzzle was a logic puzzle. There were 9 persons that sent in an answer (a new record!), and 7 of them were right. The winner was randomly selected, and it be-came Titia van Dam. Congratula-tions, you won a cinema voucher of 10 euros.

For those of you that sent in an an-swer to the puzzle (or that did not sent it in), and want to check it, the answers are below:

• Amber lives in Enschede, studies physics, and does bowling as a sport.

• Bob lives in Utrecht, studies chemistry, and does rowing as a sport.

• Chris studies ICT, lives on Texel, and plays theatre.

• Dylan lives in the Hague, studies biology, and does rugby as a sport.

• Earl lives in Breda, studies psychology, and does chess as a sport.

The new puzzleThe new puzzle consists of three riddles. For every correct riddle handed in you get 2 points (except for riddle 2, you get 3 points for that one). For every wrong riddle handed in, you get 0 points. If you decide to not hand in one (or two) of the three riddles, you will receive 1 point for this riddle. The person with the most points will win the cinema

voucher (or if there are more with the maximum amount of points, the winner will be randomly selected).

Riddle 1:You have 1013 bottles of beer. You know that one of them is poisoned, but you do not know which of these 1013 bottles is poisoned. In one hour, there is a party for which you need all the beer that is not poisoned. You go to the beer cellar, and catch 10 rats that are running around there. The poison works in a little less than an hour. This means that giving poisoned beer to a rat, will kill it within an hour. How can you use these 10 rats, and exactly identify the one bottle of beer that is poisoned, assuming one droplet from a bottle is sufficient to kill the rat? You don’t want to waste the beer after all!

Riddle 2:Legend goes, that the ship of the flying Dutchman sunk around the Cape of Good Hope (“Kaap de Goede Hoop”), and that he still haunts the place. There are on one day 1037 ships sailing around the cape of good hope. The flying Dutchman decides that only one ship is allowed to pass, and he numbers all ships from 1 to 1037. He always skips one ship, and kills the crew of the next ship. This means therefore that during his first round of attack, he kills the ships: 2, 4, 6, 8, 10, … , 1036. During his second round, he then

39

Three puzzles

Puzzleskips ship 1037, and continues with killing the crew of ship 1, 5, 9 and so on. He does not stop, until only one ship is left, what is the number of this ship?

Riddle 3:What is special about the paragraph between quotation marks?

“In a kingdom far, far away, a dwarf was walking around through high grass. It was a good-looking day, and a cloud could not find its way through all sunrays. A knight was also walk-ing through this grass, finding a dragon to slay. This knight saw dwarf Nolan, and said hi. Dwarf Nolan said hi too, but was too small to say a thing that was that loud that knight Arthur could grasp it. Knight Arthur got mad at Nolan for not saying hi back, and put Nolan in his holy grail that Arthur found along his way to town. Arthur put rum in his grail and drank it fully, with No-lan still in it. Nobody saw Nolan again, including Nolan’s aunt Brynn, who was also a knight.”

Send in your answersIf you know one or more answers to these three riddles, send in your answers. Note the point scheme!• Every correct answer to a riddle

gives you 2 points, except for riddle 2, which gives you 3 points.

• Every wrong answer to a riddle gives you 0 points.

• A riddle not handed in gives you 1 point.

• If you decide to hand in your answers, you have to at least attempt one out of three riddles.

• The winner is the one with the most points at the end. If more persons have this most amount of points, a person will be randomly selected to win this puzzle.

Send your answers toattencie@astatine.utwente.nl, and you might just win yourself a cin-ema voucher of 10 euros. Good luck!

How do you make a lithography system that goes to the limit of what is physically possible?

At ASML we bring together the most creative minds in science and technology to develop lithography machines that are key to producing cheaper, faster, more energy-efficient microchips.

Per employee we’re one of Europe’s largest private investors in R&D, giving you the freedom to experiment and a culture that will let you get things done.

Join ASML’s multidisciplinary teams and help us push the boundaries of what’s possible.

www.asml.com/careers

/ASML @ASMLcompany