display all the ideas for this combination of philosophers
4 ideas
12484 | Motion is just change of distance between two things [Locke] |
Full Idea: Motion is nothing but change of distance between two things. | |
From: John Locke (Essay Conc Human Understanding (2nd Ed) [1694], 2.13.14) | |
A reaction: If a thing moved steadily relative to other objects, and we then removed all other objects in the universe, would it still be moving? |
20964 | Descartes said there was conservation of 'quantity of motion' [Descartes, by Papineau] |
Full Idea: Descartes incorporated the conservation of what he called 'quantity of motion', by which he meant mass times speed. | |
From: report of René Descartes (The World [1631]) by David Papineau - Thinking about Consciousness App 2 | |
A reaction: Mass times velocity is now called 'momentum'. Is this the first ever conservation law? There are now lots of them. |
15986 | Boyle and Locke suspect forces of being occult [Locke, by Alexander,P] |
Full Idea: I believe that both Boyle and Locke were suspicious of forces, regarding them as occult. | |
From: report of John Locke (Essay Conc Human Understanding (2nd Ed) [1694]) by Peter Alexander - Ideas, Qualities and Corpuscles 7 | |
A reaction: I take this to be key difference between these two and Leibniz, with the latter on the side of the angels. |
16685 | An insurmountable force in a body keeps our hands apart when we handle it [Locke] |
Full Idea: The bodies which we daily handle make us perceive that they do by an insurmountable force hinder the approach of the parts of our hands that press them. | |
From: John Locke (Essay Conc Human Understanding (2nd Ed) [1694], 2.04.01) | |
A reaction: This is interesting for a rare use of the word 'force' by Locke. I like the empiricist approach to these things, of actually contemplating handling physical objects. Empiricism keeps the feet of philosophy firmly on the ground. |