4 ideas
22235 | Feelings are not unchanging, but have a history (especially if they are noble) [Foucault] |
19399 | Prime matter is nothing when it is at rest [Leibniz] |
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] |