The Color Loss That Occurs At Water Depth

  1. I wonder why pink works so well though. Do pink wavelengths of light penetrate through water well? That's surprising since red wavelengths don't.

  2. And why the Coral Beauty in our reef tank is blue and orange, a stunningly beautiful fish under full light, but once the white lights go off, only leaving the blue spectrum, that fish all but disappears in the tank. Incredible natural camouflage that also ends up making the fish really nice to look at.

  3. Theres a David Attenborough show on netflix called Life in Colour that talks about this and is quite fascinating.

  4. Red is the longest wavelength, lowest energy colour on the visible spectrum. This makes it terrible at penetrating water. Yellow is next.

  5. When scuba diving I saw some people take a picture with a big Canadian flag. It was bright blue and white.. really wild

  6. I came here to say this! Mind you that was mostly because of a yellow flare in the darkness, but still. “Cut the blue wire with the white stripe… NOT, I repeat... NOT the black wire with the yellow stripe.”

  7. So what you're saying is that deep sea creatures could be bright purple/red and we would have no idea until they wash up dead

  8. This is awesome to watch. I still remember how amazed I was as a kid to read about how colours are basically reflected light and it changes with how much light is reflected.

  9. I like to dive whenever possible. Sliced my hand open on some coral while not paying attention. Watching my blood flow green was super cool

  10. Me, an underwater electrician at 100 feet talking to my boss through my earpiece: Which wire was I supposed to cut again? Asking for confirmation?

  11. Anyone who is colourblind that would like to tell me if there is a difference between top and bottom pictures and at what stage?

  12. Color is not an intrinsic property of matter, so what you said is incorrect. Color is a derived property that is completely dependent on the environmental and observational conditions. Less light, ergo, directly correlates to less color.

  13. i wonder if there is a connection between the amount of light coming from the surface and how bright the colors are

  14. Last time I went diving was pre covid in Thailand. I was down about 20 metres and had got thrown around by a bit of a rough current. I had to put my hand out to stop myself getting thrown against some rocks and took a bit of skin off the heel of my hand.

  15. I bought red fins to scuba dive but mostly to snorkel and I got that color thinking it would be more visible in the water. Shoulda went orange

  16. Proving? nothing. This is just interesting, for people that have never experienced it, or haven't thought about how light behaves under water, it's just an easy way to picture the difference in colors.

  17. Water appears blue b/c it absorbs the red end of the spectrum of visible light. Even though scientifically I know this, it’s still is hard for me to understand. Lol.

  18. Colors don’t exist on itself, just the color that is being reflected and not absorbed from UV light determines the color.

  19. That was actually the greatest shock to me on my training dive....fellow divers with ghastly blue faces at 60 feet.

  20. What's really crazy is when you bring them back to the surface the color doesn't come back. The ocean actually eats the color.

  21. This is genuinely interesting! I've never seen a spectrum actually compared at different depths like that. Fish/coral colors lake a lot more sense now

  22. Where do the colours go? Does the dye just wash out due to the pressure, or does it just get pressed together? And why does the blue dye resist so well, is it just the specific substance or does it happen to any blue?

  23. Absorption of visible wavelengths of light - the dye is unaffected, it's the light in the water that changes characteristics the deeper you go. Longer wavelengths are absorbed first so you lose your reds and oranges first.

  24. Does anyone know why pink holds up so much better than red? I get that red light doesn’t penetrate water well, I just thought that the pink would be more affected by losing the red. Are we just seeing more violet instead?

  25. Since the color on the right was the cleares, should divers use it as a suit color? It would be bright quite deep under the sea.

  26. Most fish have 4 cone types for color vision (tetrachromats) whereas humans are primarily a 3-receptor species. It's hard to imagine the millions more colors they can see that we don't.

  27. I remember wearing a red shirt on a submarine tour in Honolulu, the guide told everyone to keep an eye on my shirt as we dove. Definitely blew my 10 year old mind.

  28. Funfact: a lot of deepseadwellers are black or firered, because those colors are gone first when light get's scarce

  29. So this is due to less light being able to reach that far down, or is it from light (or specific parts of the spectrum) being attenuated by the water?

  30. Isn't color changing because there is less sunlight reaching down? Or are there other factors too that I am missing out, like the effect of pressure maybe?

  31. The bright green, 6th one, seemed to get more neon the further down they went. Would the test be different if the colors weren't next to each other?

  32. Is this happening because of the lighting differences? Will the colors come back when they pull them out of the water? Or...

  33. I mean, color is just refraction of light right? Less light means less color doesn’t it? Now if they had a flashlight on it the whole way and it still loss color I’d find this interesting.

  34. Correct me if I'm wrong but I'm pretty sure the colours look like they're changing because of the change in light not the pressure of the water.

  35. Whatever those things are are giving me a vague flashback to some toy or toys I had as a toddler or young child, over 40 years ago. Maybe a xylophone or something similar. But I think the toy was also cylinders of that size so its not just color.

  36. Kinda crazy that the red piece becomes nearly black and yellow turns blue-green while pink and orange are still recognizable

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