December 11 – Kaleidoscope Day

Posted on December 11, 2017

Today is the birthday of the man who invented the kaleidoscope, Sir David Brewster. This Scottish scientist / inventor was born on this date in 1781.

Someone, somewhere, decided that December 11 would be a great day to celebrate this fun optical toy.

Do you own a kaleidoscope? Have you ever made one? 

Here's what the view through a kaleidoscope can look like:

And here's how a kaleidoscope works:

The wonderful images are created by the reflections of reflections of reflections - of the three mirrors:

And here's a step-by-step in making one type of kaleidoscope.

Also on this date:

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