A Conversation for Red Alert! It's the Colour Red

42 degrees

Post 1

Gnomon - time to move on

"To create red light, light has to bounce off water at 42 degrees"

Can someone explain that to me, please?

42 degrees

Post 2

Gnomon - time to move on

Ah, I see. This is the angle that red light _in a rainbow_ is deflected through by the water drops. I've reworded the Entry accordingly.

42 degrees

Post 3

The H2G2 Editors

Thanks Gnomon. smiley - ok

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