3 ms·
> Physically isolating certain wavelengths produces a "pure green" light. What, can we get an wavelength-energy distribution that looks like a Dirac delta? Th
by thanatropism 9y ago
> Physically isolating certain wavelengths produces a "pure green" light.
What, can we get an wavelength-energy distribution that looks like a Dirac delta?
There are discontinuities in physics but you kinda need to be careful to see if what you think is a discontinuity is one.
- jacobolus 9y agoYou can use a laser. https://en.wikipedia.org/wiki/Coherence_(physics)#Temporal_coherence https://en.wikipedia.org/wiki/Coherence_(physics)#Temporal_c...
- thanatropism 9y agoWhat this is saying is that a perfect sinusoid has a single frequency? Of course. Sorry, I'm stupid. Born like that.