4 ideas
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
15312 | We get the idea of power by abstracting from ropes, magnets and electric shocks [Priestley] |
18948 | There is an object for every set of properties (some of which exist, and others don't) [Parsons,T, by Sawyer] |
15311 | Attraction or repulsion are not imparted to matter, but actually constitute it [Priestley] |