Sir David Brewster,FRS, (11 December 1781 - 10 February 1868) was a Scottish scientist, inventor and writer. He was born at Jedburgh, where his father, a teacher of high reputation, was rector of the grammar school. At the age of twelve, he was sent to the University of Edinburgh, being intended for the clergy. However, he had already shown a strong inclination for natural science, and this had been fostered by his intimacy with a "self-taught philosopher, … Wikipedia
David Brewster is chiefly remembered today for his invention of the kaleidoscope. However his interests lay in a wide variety of areas, and he started early, constructing a telescope, for example, by the age of ten. Concerned with the behaviour and make www-ah.st-and.ac.uk/mgstud/reflect/david.html
The Brewster Kaleidoscope Society is a kaleidoscope lover's dream. It's an international organization for designers, collectors and lovers of kaleidoscopes www.brewstersociety.com/
The definitive Wikipedia entry for David Brewster. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/David_Brewster