The Future of the Universe
If matter attracts matter, then logically, at some point in the future, all matter will contract until it is at a point where it is no longer compressible.
Guess (tell me if there is a way to prove/disprove this, just makes sense to me): When all matter reaches the point at which it can no longer contract, it must (?) still continue to attract itself. Since it can no longer contract, would it not generate INCREDIBLE friction? Would this friction not generate heat, and therefore increase the average translational kinetic energy per molecule? If this were to happen, would the non-compressible matter not bounce off of itself, resulting in everything flying apart? Is this not the Big Bang? That would solve the "where" that people are always confused about. The void of the universe would still be there, giving the exploding matter room to expand.
I have no way to back this up. It just makes logical sense in my head. I’m not a physicist, and my math is not terrific. I just started to think of the world as simply a pack where a lot of molecules had attracted each other into a mass, the densest settling nearest the center… and then I thought about the universe the same way.
Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.
- There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
- CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
- Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
- Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.
Protected animals are feared to be headed for the black market.
In a breakthrough for nuclear fusion research, scientists at China's Experimental Advanced Superconducting Tokamak (EAST) reactor have produced temperatures necessary for nuclear fusion on Earth.
- The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
- Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
- Still, scientists have many other obstacles to pass before fusion technology becomes a viable energy source.
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