4 ideas
18810 | Aristotle's proofs give understanding, so it can't be otherwise, so consequence is necessary [Smiley, by Rumfitt] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
20972 | Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau] |
20645 | Heat is a state of vibration, not a substance [Joule] |