4 ideas
12750 | The question is whether force is self-sufficient in bodies, and essential, or dependent on something [Lenfant] |
22363 | You have only begun to do real science when you can express it in numbers [Kelvin] |
16745 | No one even knows the nature and properties of a fly - why it has that colour, or so many feet [Bacon,R] |
20644 | Energy has progressed from a mere formula, to a principle pervading all nature [Kelvin] |