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Today I googled for Kaleidoscope. When I was a kid, I was presented a cheap version of what was sold for thousands of dollars elsewhere. I loved watching the changing colors and patterns through this foot long tube. I did not know what its name was then. I think, after a few years of my acquaintance with it, I knew the name.
I came across an interesting historical information that Kaleidoscope was known to the ancient Greeks ( kalos, eidos, and skopos are Greek words meaning beautiful, form, and view ) and it was patented by Sir David Brewster from Scotland in 1817.
I started to wonder,
1) If it was known to ancient Greeks, then why was it not for their descendants? Why would it take a Sir David to discover it in 1817?
2)Are modern inventions - really inventions from the scratch? or improvisations over discoveries of what was done at early times?
Thanks to Wikipedia for the information and the images.
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