Model Gallery

			Ames Window Built by Brian Leach The Ames Window is a variation of the Ames Room invented by Adelbert Ames. The optical illusion of the bar passing through the window occurs because the window is not oscillating let-right-left as it appears to the viewer, but is in fact rotating with...
			Hermann Grid Built by Chris Warrell This model was built for the January 2010 Secretary's Challenge which was to build a model demonstrating an optical illusion. It uses square cut 2½" x 2½" blue flexible plates on a sheet of white card, all in a frame of gold angles. You s...
			Newton's Disc Built by John Gay This model shows that white light is made up of the three primary colours, red, green and blue.
			Optical Illusion Built by Chris Fry Which span, A or B, looks the longest?  While span A looks bigger, in fact span B is longer by 1"!
			Stroboscope Built by Alan Wenbourne For the Optical Illusions Secretary's Challenge I decided to re-create a stroboscope. Some years ago I made one to determine the rotational speed of my E20R motor, spinning a black/white segmented disc under tungsten lighting. I remember it worked but ...

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