#MindBuzzer: Your Blood Appears Green 30 Feet Underwater, here’s why!

If you’ve ever seen a video or heard stories about blood turning green underwater, you might be curious—does blood really change color when you dive deep? The answer is a big no, but there is a scientific explanation for this strange color illusion.

The Science Behind the Color Change:

Sunlight contains all the colors of the spectrum—red, orange, yellow, green, blue, indigo, and violet. When sunlight penetrates water, the water absorbs colors starting from the longest wavelength, which is red. By the time you’re about 30 feet underwater, most red light is gone, leaving mostly blue and green light. Blood appears red because it reflects red light. Without red light present, the blood reflects the green and blue light, making it look greenish or bluish.

This intriguing phenomenon is explained in the enlightening video by Nikolay’s Genetics Lessons. The video dives into the science behind blood color perception, showing that human blood always reflects a little bit of green light, but we usually only notice its red appearance because of the dominance of red light on the surface. 

So, next time you hear about blood turning green underwater, remember—it’s not a magical transformation but a fascinating example of how light absorption changes what we see deep beneath the ocean’s surface. Nature always has surprises hidden just beneath the waves!

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