Why can we only "see" reflected light?
39242
Why can't we see light travelling from point A to B?
53874
Why don't absorption and emission lines cancel out in our Sun?
67057
Why do some materials reflect (metals) and other materials reflect and refract (glass) from the quantum perspective?
42751
Why do we think of light as a wave?
32307
How can we interpret polarization and frequency when we are dealing with one single photon?
52389
Why does a CD work as a diffraction grating even with light from a light bulb?
56838
Why aren't all objects transparent?
107782
Does light reflect if incident at exactly the critical angle?
129566
What happens to light in a perfect reflective sphere?
128954
How can we see objects that are so far away?
18934
How is subjective experience of color mapped to the visible spectrum?
106917
Do individual rays of light lose energy via the inverse square law?
38797
Why don't waves with different wavelengths interfere with each other in white-light?
24764
Why can't light pass through walls but sound can?
22385
Why is the atmosphere transparent in the visible spectrum?
154838
How can I avoid colored light reflections?
156879
"Reality" of EM waves vs. wavefunction of individual photons - why not treat the wave function as equally "Real"?