crash course a breef history of the universe
the universe is expanding meaning a very long time ago there was a huge hot ball of just everything and when I mean hot I mean making a supernova look like negative 100 very very hot and I do mean hot there are these things called colliders technically they make things go supersonic at each other and to see what kind of explosion or compact thing we can make that's why we keep making them bigger and better so we can see what the big bang looked like or something like that when the universe got its start it was unfathomably hot and dense was totally different than it is today if you pump more energy into something it acts very strange if you heat up a snowball it will melt called a change of state when you heat it more it looks and acts more because it is being heated up to vaporize
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