4 ideas
16567 | Scientists know everything about nothing, philosophers nothing about everything [Sagan,D] |
467 | A virtue is a combination of intelligence, strength and luck [Ion] |
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] |