Made by Jordan

Intro

• As you think black holes are cosmic vacuums they are actually not!!

If a black hole swapped with the sun non of our atmosphere would change except it would be darker and colder. Did you know in black time is non existent and that black and white hole are fact but worm holes aren't.

• Black holes are evolutionary endpoints of massive stars that have died and crumbled inside itself because of so much gravitational pull which has created a black hole.

• The mass inside a black hole is said to be the energy that keeps it going ,its mass comes from the centre of the star it once was.

How big are black holes

Black holes are different sizes depending on how they are formed, and their type. The sun example the radius of 700,000 kilometers so a super massive black hole has the radius of four times the sun. A micro black has the radius of up to 0.1

millimeters and a solar mass black hole has the radius of 30 kilometers.

How do Black holes evaporate

• Black holes gradually evaporate when the mass they have stored, has no more energy left. The energy is what keeps it going, so it will then start to shrink, until it evaporates into thin air.

• It is almost impossible to know when a black hole is going to evaporate, but sometimes experimental tests will show you.

• There is no limit to how little or how much a black hole can hold. As any amount of mass can create a black hole, even the tiniest amount, if you minimise it to a high enough density.

• If one or two particles fall across the horizon (Schwarzchild radius) and escape it, it will carry an energy mass with it.

Different kinds of Black holes

• A usual mass for a stellar black hole would be about ten times the size of the sun

• A million solar mass black hole in the centre of a galaxy, would have the radius of three million kilometres.

• Opposite to black holes which suck in masses are white holes which spit out masses.

• The largest of black holes are thought to be in other galaxies. These are bigger than a solar mass black hole and have a radius of a fraction of our solar system.

Facts

• If you were to be sucked into a black hole you would have to cross inside the Schwarzchild radius. You then get ripped into thousands of pieces like noodles.

• At this radius the escape speed is equal to the speed of light.

• The Schwarzchild radius is the black holes horizon, like we have a horizon a black hole has one too.

• Black holes have their name because they absorb all light rebounding nothing.

The Endwww.//en.wikipedia.org/wiki/black_hole

http://cosmology.berkeley.edu/Education/BHfaq.html

http://imagine.gsfc.nasa.gov/docs/science/know_12/black_holes.html

http://faraday.fc.up.pt/cfp/Members/paccetti/black_hole_milkyway.j

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Black Holes Photos, Black Holes Wallpapers, Download, Photos -- National Geographic