4 ideas
13605 | Gravity isn't a force, because it produces effects without diminishing [Mayer] |
20645 | Heat is a state of vibration, not a substance [Joule] |
20972 | Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau] |
1513 | The Egyptians were the first to say the soul is immortal and reincarnated [Herodotus] |