4 ideas
3144 | Everything is what it is, and not another thing [Butler] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
20646 | Helmholtz used 'energy' to mathematically link heat, light, electricity and magnetism [Helmholtz, by Watson] |
20973 | All forces conserve the sum of kinetic and potential energy [Helmholtz, by Papineau] |