4 ideas
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |
Full Idea: I regard you all as relatives - by nature, not by convention. By nature like is akin to like, but convention is a tyrant over humankind and often constrains people to act contrary to nature. | |
From: Hippias (fragments/reports [c.430 BCE]), quoted by Plato - Protagoras 337c8 |
23832 | We both desire what is beautiful, and want it to remain as it is [Weil] |
Full Idea: Everything beautiful is the object of desire but one desires that it be not otherwise, that it be unchanged, that it be exactly what it is. | |
From: Simone Weil (Prerequisite to Dignity of Labour [1941], p.268) | |
A reaction: This seems to be mostly true, though I don't think it reveals the essence of beauty. I might love a particular landscape, but want to plant a carefully place tree within it. Or change one or two words in a great poem. |
20646 | Helmholtz used 'energy' to mathematically link heat, light, electricity and magnetism [Helmholtz, by Watson] |
Full Idea: Helmholtz provided the requisite mathematical formulation linking heat, light, electricity and magnetism, by treating these phenomena as different manifestations of 'energy'. | |
From: report of Hermann von Helmholtz (On the Conservation of Force [1847]) by Peter Watson - Convergence 01 'Human' | |
A reaction: I'm increasingly struck by the neglect by philosophers of nature of these amazing developments in 19th century physics, because they prefer the excitement of the latest nuclear physics. There is more philosophical interest in the earlier stages. |
20973 | All forces conserve the sum of kinetic and potential energy [Helmholtz, by Papineau] |
Full Idea: Helmholtz crucially asserted that all forces conserve the sum of kinetic and potential energy; superficially non-conservative forces like friction are simply macroscopic manifestations of more fundamental forces conserving energy at the micro-level. | |
From: report of Hermann von Helmholtz (On the Conservation of Force [1847]) by David Papineau - Thinking about Consciousness App 4.3 | |
A reaction: Friction had been a problem case, because it appeared not to conserve energy when it slowed movement down. |