What is the speed of dark

Have you ever wondered what is the speed of dark? We all know there is something called the speed of light. But if dark is just the absence of light, dark on its own, doesn’t actually exist, and nothing that doesn’t exist can have a speed.
But I will suggest in this video that Dark has a definite measurable speed. If you have any thoughts on this topic, please post them in the comments box

[davesunhammer]

Dark has no need for speed. It already is there.

[lightningrider]

Waffeltonian Physics, Awesome!!! Keep Calm and Waffle On.

[donwalton]

According to the late, great Sir Terry, royalty travels faster than light. No matter how far away an heir is, the moment an incumbent pops their clogs, the heir is the new monarch. Instantly.

[Jimmy_Cream]

Giving us the answers to questions that only come to us 4 and a half minutes after going to bed and destroying any vestige of sleep. Well played sir

[causewaykayak]

That sunrise sunset stuff is grist to the mill for celesial navigators.

[JorgePrates]

Here is a good starting point to talk about the 3 twilights and their uses when planning navigation. Cheers !

[georgemcdaniel]

Great waffle. Dark is always there is space. So the pulses of light are moving thru dark like a ship moving thru standing water. The dark is just there and not moving.

[goatladygletha]

Well now, there's a thought. Can't say that I've ever wondered about it. Something to ponder, for sure.

[almac]

Bought a replacement in-line switch for a table lamp power cord several years ago. Far Eastern manufacturer. Instructions on wiring it plain and simple. Operating instructions were a graphic labeled 'Light On' and 'Dark On'. Did it lose something in the translation? It certainly is not inaccurate.

[priscillawillis]

That is a really cool thought/ idea you have. Thanks for that as something in my file to think of.

[joshuanorthey]

I think a great video for hikers on this topic would be a video about how during different times of year and cloud conditions dark comes faster or slower. Interesting topic. Elevation matters too, especially to west.

[mikaelwerner]

Well, I guess it gets dark/light faster the closer to the equator you are, but it also depends on the nature/hight of the clouds, the season etc... Up in northern Sweden dark comes very slow you might say, but it stays a pretty long time though.

[g.w.moorman]

Yogi Berra said, 'It gets late early around here.'

[gammondog]

For an outdoorsman, it’s the speed of the earth’s terminator.Add to that the length of twilight. In the tropics nightfalls quickly. Higher latitudes can take longer between sunset and last light depending upon the season.🌓

[stevesmith]

The speed of dark changes with the time of day. It's cheaper for it to travel after 6 pm.

[RobertBrown-qtdp]

Everywhere on the surface of a planet or in space there isn't any true dark as there is always photons from somewhere. What we perceive as dark an owl would still be able see over some distance. You need to have an absence of photons for true dark. Still a great vid keep them coming.

[JeffMeadowsOutdoors]

The concept of dark is similar to the concept of nothing as discussed previously. It is defined as absence of something else……

[danmas]

When you turn on the on the light, the photons are spread out everywhere in space but also in time. Wenn you turn out your light and after a while you turn it on again you are allready in a different point in your space-time continuum. That's why your second light emmission can neuer reach the first. Please correct me if i'm wrong or forget anything.

[BenLaws-mj]

I have a question for you.
I’ve used maps for years through the cadets and was always taught that we ignore true north… we never use it.

I’ve been taught grid magnetic angle, and it was always called declination. However after watching your videos I’ve realised that magnetic declination refers to the angle betweeen grid and true north…. but why would we use true north and not grid north? Have you covered this in a previous video?

[CristiNeagu]

Well, darkness travels as fast as light, since darkness is the absence of light, and light can get out of a place only as fast as it can get there too. And this applies to sunrises and sunsets. They take roughly the same time to go from some light to darkness or the other way around.