If you can't illustrate 'it', 'it' doens't belong in Physics as a noun! You can't put an article in front. You can't put a verb after!
Bill GaedeA mathematician believes that describing the speed of Mercury with equations amounts to science.
Bill GaedeA mathematician says that an electromagnetic wave travels from Andromeda to your eye and that it also extends from Andromeda to your eye.
Bill Gaede