Things on a very small scale behave like nothing that you have any direct experience about. They do not behave like waves, they do not behave like particles, they do not behave like clouds, or billiard balls, or weights on springs, or like anything that you have ever seen. Richard P. Feynman ballbehavebilliard share on social
Quarks came in a number of varieties - in fact, at first, only three were needed to explain all the hundreds of particles and the different kinds of quarks - they are called u-type, d-type, s-type. Richard P. Feynman callexplainfact Change image and share on social
The universe is very large, and its boundaries are not known very well, but it is still possible to define some kind of a radius to be associated with it. Richard P. Feynman boundarydefinekind Change image and share on social
If you keep proving stuff that others have done, getting confidence, increasing the complexities of your solutions - for the fun of it - then one day you'll turn around and discover that nobody actually did that one! Richard P. Feynman complexityconfidenceday share on social
Often one postulates that a priori, all states are equally probable. This is not true in the world as we see it. This world is not correctly described by the physics which assumes this postulate. Richard P. Feynman assumecorrectlyequally Change image and share on social
Investigating the forces that hold the nuclear particles together was a long task. Richard P. Feynman forceholdinvestigate Change image and share on social
The first amazing fact about gravitation is that the ratio of inertial mass to gravitational mass is constant wherever we have checked it. The second amazing thing about gravitation is how weak it is. Richard P. Feynman amazecheckconstant Change image and share on social
The ideas associated with the problems of the development of science, as far as I can see by looking around me, are not of the kind that everyone appreciates. Richard P. Feynman appreciatedevelopmentidea Change image and share on social
Do not keep saying to yourself, if you can possibly avoid it, 'But how can it be like that?' because you will get 'down the drain,' into a blind alley from which nobody has yet escaped. Nobody knows how it can be like that. Richard P. Feynman alleyavoidblind share on social
