Why we use blue

[Ryan Avery]

Just I observation I made at work today. This is a pool with a all white bottom, it’s interesting that as you go down the steps to the bottom of the pool, it continues to get more blue. I may be oversimplifying this, but that seems like a good representation of why the corals like a more blue spectrum the deeper you go. Also looks a lot like kessil shimmer!

Take care and stay safe everyone!

 

[Dallascowboys16]

That is a really great visual representation of how bluer light penetrates deeper than other wave lengths!

 

[Ryan Avery]

That is a really great visual representation of how bluer light penetrates deeper than other wave lengths!

The things only use reef nerds would notice

 

[Ryan Avery]

T

 

[krash7172]

The red side of the spectrum only travels a few feet in water. Deeper = bluer and darker.

 

[HB AL]

Bingo

 

[krash7172]

Try underwater photography. Massive strobes are required. Even with a subject just 3 feet away, the light will travel 3 feet and then have to travel 3 feet back for a total of 6 ft and it's blue. Most coral is more than 6 ft deep

 

[shootingstar_reef]

There's a couple cool videos that show this:

 

[Ryan Avery]

There's a couple cool videos that show this:

Very cool videos! Thanks for sharing