Monthly Archives: May 2012

Abbott Thayer, Countershading and Camouflage Theory

Posted on May 31, 2012 by Graham Shawcross

This gallery contains 11 photos.

Abbott Handerson Thayer (1849-1921) was for a time one of America’s most famous portrait painters. He was also an accomplished painter of the natural world, being particularly interested in animal colouration. He made three important contributions to camouflage theory. These … Continue reading →

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Haptic Radios

Posted on May 17, 2012 by Graham Shawcross

Radios that can be operated in the dark with one hand. Battery in square enclosure acts as on-off switch, programme selector, volume control and power supply. No buttons, dials, sliders or other moving parts. Because radio can be operated in … Continue reading →

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