Richard Feynman Quote

The scale of light can be described by numbers — called the frequency — and as the numbers get higher, the light goes from red to blue to ultraviolet. We can't see ultraviolet light, but it can affect photographic plates. It's still light — only the number is different.


p. 13 - QED: The Strange Theory of Light and Matter (1985)


The scale of light can be described by numbers — called the frequency — and as the numbers get higher, the light goes from red to blue to...

The scale of light can be described by numbers — called the frequency — and as the numbers get higher, the light goes from red to blue to...

The scale of light can be described by numbers — called the frequency — and as the numbers get higher, the light goes from red to blue to...

The scale of light can be described by numbers — called the frequency — and as the numbers get higher, the light goes from red to blue to...