How to Unbend a Rainbow Into a Beam of White Light
by Lori Dorn from Laughing Squid on (#73DWX)
Innovativescience essayist and authorSteve Mould wondered if he could unbend a rainbow into a beam of white light, using the principles of Sir Isaac Newtons prism rainbows. Mould added an additional prism and a convex lens to achieve the reverse. After a few attempts, Mould succeeded, and the reaction was absolutely stunning.
Newton proved that white light was made of all the colours of rainbow by recombining the spectrum. He used a second prism and a convex lens.
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