The law of gravity says no fair jumping up without coming back down. When they broke open molecules, they found they were only stuffed with atoms. But when they broke open atoms, they found them stuffed with explosions. When people run around and around in circles, we say they are crazy. When planets do it, we say they are orbiting.
Most books now say our sun is a star.
But it still knows how to change back into a sun in the daytime. A vibration is a motion that can't make up its mind which way it wants to go. There are 26 vitamins in all, but some of the letters are yet to be discovered. Finding them all means living forever. Some oxygen molecules help fires burn while others help to make water.