4 ideas
8754 | Logic is dependent on mathematics, not the other way round [Heyting, by Shapiro] |
1590 | The just man does not harm his enemies, but benefits everyone [Plato] |
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] |