4 ideas
22352 | Out of more than a hundred planets, Earth is the only one with the idea of free will [Vonnegut] |
7810 | The 'Eumenides' of Aeschylus shows blood feuds replaced by law [Aeschylus, by Grayling] |
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] |