5 ideas
19699 | A Gettier case is a belief which is true, and its fallible justification involves some luck [Hetherington] |
22745 | Pherecydes said the first principle and element is earth [Pherecydes, by Sext.Empiricus] |
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] |
5883 | Pherecydes was the first to say that the soul is eternal [Pherecydes, by Cicero] |