New posts in Visible Light

Why isn't my calculation that we should be able to see the sun well beyond the observable universe valid?

Why doesn’t a normal window produce an apparent rainbow?

How do photons get into the eyes?

Why does frequency remain unchanged in light refraction but wavelength doesn't?

How many yellow objects are there?

Why light coming from distant stars is not discrete?

Is the black hole image in false color?

Would a galaxy be visible from outside, but nearby?

Propagation of light

Light propagating through a sound wave