Hareket halindeyken arabanın kapısını asla açma.
- Never open the door of a car that is in motion.
Tren hareket halindeyken açma.
- Do not open while the train is in motion.
... you get. Which means that the energy of motion, "E" turns into "m", your mass. And ...
... So what Newton did was not only did he set into motion the ability to calculate planets, ...