What is the speed of darkness?

Darkness is the absence of light. So as such, it doesn’t have a speed.

If you’ve ever gone to Black Hole, you’ll know.

Okay, you can say, it’s almost at the same speed of light, but a little bit slower.

If you shine a flashlight at an observer and then turn it off, the “darkness” will reach you at the speed of light. You could say that the last photon from the flashlight will reach you in c*d, where c is the speed of light and d is the distance from the flashlight.

We definitely have an idea of what the speed of light is. It’s exactly 299,792,458 m/s.

@Rarebear is right. Darkness is just a lack of light. It doesn’t have wavelengths or any other quality that inherently gives it a speed.

Why not ask: How much does space inside of a total vacuum weigh?

@Fiddle_Playing_Creole_Bastard – I think @wundayatta is asking a joke question. So then. need to be answered with silly words

This question has been answered in this book – which is actually really good.

Personally I think that the speed of dark must be slightly faster than the speed of light, because the darkness is always there first.

Think there’ll be a paradox effect between Light and Darkness.

I’m going to switch off my bedside light in a minute and I bet my head hits the pillow before the darkness does.

Asking what the speed of darkness is is like asking what the kinetic energy of coldness is.

The question is based on a wrong idea: that light and darkness both exist and are somehow opposites, i.e. “dualism.” Darkness is not a thing. Coldness is a thing. Darkness is the absence of light; coldness is the absence of heat. Both heat and light are forms of energy.

If I 50% pulse width modulate a light beam at 300 MHz, I will make packets of light about one meter long separated by darkness a meter long. They both travel at the same speed – “c”.

@worriedguy wins the question.

It’s so fast that it can’t be seen.

Nobody knows…. it’s never moved… but there are two scientists in Sweden that have been standing by with a Radar Gun since 1985 staring at darkness just waiting for it to move.

its just about the speed of Lint or Ludicrous speed