4 ideas
15710 | Bohr explained the periodic table and chemical properties of elements, using the quantum atom [Kumar] |
20662 | The biology of societies: kin selection, parenting, mating; status, territory, contracts [Wilson,EO] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |