One horsepower is the amount of energy it takes to drag a horse 500 feet in one second. The law of gravity says no fair jumping up without coming back down. When people run around and around in circles we say they are crazy. When planets do it we say they are orbiting. South America has cold summers and hot winters, but somehow they stillmanage.
Most books now say our sun is a star.
But it still knows how to change back into a sun in the daytime. Water freezes at 32 degrees and boils at 212 degrees. There are 180 degrees between freezing and boiling because there are 180 degrees between north and south. There are 26 vitamins in all, but some of the letters are yet to bediscovered. Finding them all means living forever.