12 ideas
| 6855 | Interesting philosophers hardly every give you explicitly valid arguments [Martin,M] |
| 6856 | Valid arguments can be rejected by challenging the premises or presuppositions [Martin,M] |
| 6857 | An error theory of perception says our experience is not as it seems to be [Martin,M] |
| 13165 | Geometrical proofs do not show causes, as when we prove a triangle contains two right angles [Proclus] |
| 9569 | The origin of geometry started in sensation, then moved to calculation, and then to reason [Proclus] |
| 24162 | Planck introduced the idea that energy can be quantized [Baggott] |
| 21731 | Fields can be 'scalar', or 'vector', or 'tensor', or 'spinor' [Baggott] |
| 21730 | A 'field' is a property with a magnitude, distributed across all of space and time [Baggott] |
| 24163 | Free electrons have clouds of virtual particles, arising from field interaction [Baggott] |
| 24161 | Thermodynamics sees nature as a continuous flow of energy, as radiation and as substance [Baggott] |
| 21732 | The current standard model requires 61 particles [Baggott] |
| 24160 | Particle measurements don't seem to reflect their reality [Baggott] |