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Schishuney / fishing place with a pole / Waldron Island
Dusk o’ June, MMIX
Jelte Harnmeijer
Center for Astrobiology & Early Earth Evolution
University of Washington /
National Aeronautical and Space Administration
L i f e
- Gratitude in a Word -
“Dhanje-bhat”
- Science | Religion, Truth & Method -
- Space, Time & Consciousness -
- Geological Time -
- The Birth of our Home, Earth -
(A) Isua (3.8 Ga) (B) Pilbara (3.5 Ga) (C) Barberton (3.5 Ga)
- The Oldest Rocks -
you
- And what of Life? -
-Entropy –
- Organization –
- Order –
- Complexity –
dSdt
dS is the incremental change in Entropy
dt is the incremental change in time
0
-The Second Law of Thermodynamics –
“Entropy in the Universe always increases”
Nutrients Waste products
Low Entropy High Entropy
- Life is a Struggle against Entropy –
Low Entropy High Entropy
Nutrients Waste products
- Life is a Struggle against Entropy –
- Death –
- Isotopes –
Example: Carbon12C 13C
protonneutron
‘light’ ‘heavy’
Negative δ13C = mostly ‘light’ carbonPositive δ13C = mostly ‘heavy’ carbon
CO2 + H2O -> O2 + CH2O
- Biosynthesis –
- Let’s get back to the rocks! –
- Australia –
- Australia –
- Australia –
10 km2003 biomarker sample2004 biomarker sample
- Australia –
- Greenland –
- Greenland –
- Greenland –
- Greenland –
- Carbon Isotopes –
- An Unexpected Surprise –
- An Unexpected Surprise –
- Fossils (!) –
- Fossils (!) –
{e-mail} Jelte.Harnmeijer @ gmail.com
{blog} http://www.realfuture.org
- Please stay in touch -