()Ataisia I Love Guys With Long Hair Long Sleeve T Shirt, Hoodie, Sweater, Vneck, Unisex and T-shirt
Best Ataisia I Love Guys With Long Hair Long Sleeve T Shirt
There’s a Ataisia I Love Guys With Long Hair Long Sleeve T Shirt that is true in Kaushik’s answer, but it glosses over the important difference abou
buy it now:Ataisia I Love Guys With Long Hair Long Sleeve T Shirt
Boston Red Sox Nike Camo Logo 2023 Shirt
Fish Van Zwol engineered fishing gear logo shirt
Pink cat skateboard Unhygienic and Mediocre shirt
School Bus Driver Hawaiian Shirt
Ever watch a whirlpool? How about water going down a drain or even a Ghost Red Death Shirt of cream swirled into your coffee? It sometimes looks like a spiral galaxy. And we once thought gravity was holding a galaxy together. If you watch a whirlpool carefully you will notice the outside orbits the center slowly and the closer to the middle you are the faster it spins. But this was a bit of a problem for galaxies because this would make the arms of the galaxy wind up tight. They would not last for millions of years. Earlier in the century, before computers, astronomer would hire dozens of women who were good at math to do calculations for them. One of them made an important discovery: the speed of the stars in the outer arms was way faster than it should be. The galaxy was spinning like a solid LP record album! According to the laws of gravity, which we know quite well, it shouldn’t behave like this…unless there was WAY more mass than we could see. And the issue of *dark matter* was born. Yes, there would be a lot of dust and gas and planets and small stars we couldn’t see. But all that is still not enough for the behavior we observe. It is a mystery we are still working on!
homepage: gearbloom
No comments:
Post a Comment