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1001 Playthinks, Puzzles, Paradoxes....
$29.95
...Illusions and Games...."the most wide-ranging, visually appealing, entertaining, gigantic collection of brain teasers"..New York Times -- Open this amazing book to any one of its 400+ oversized pages and instantly youGÇÖll be whisked off to a place you may never wish to return from. -- A place of riddles, puzzles, visual challenges, illusions, art objects and toys GÇô all powerful enough to bring families together and engage minds dulled by television. A compelling collection. Full color. 420 pages, hardcover.
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or to order
1001 Playthinks, Puzzles, Paradoxes....
from Edmund Scientific's
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Biofoam -Foam for Impressions
$6.95
A clean, quick, easy way to make footprint impressions! -- Follow in the footsteps of actual forensic detectives with this professional field technique. -- Press any footwear into the blue BIO-FOAM and after removal, the foam retains a detailed footprint impression which can be stored in the original cardboard container. -- For further study, a cast can be made of foam impressions by coating with hairspray and pouring in a prepared casting material (available separately). -- Designed for one use per BIO-FOAM. Size: 14"L x 6"W x 2-1/4"H.
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or to order
Biofoam -Foam for Impressions
from Edmund Scientific's
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HandHeld DC Generator
$14.95
You Provide the Power! -- A handy and versatile tool for exploring electric generators and motors, this compact DC generator is housed in a transparent case that allows you to see the mechanical gearing of the crank drive as well as the electrical connection to the built-in miniature lamp and output socket. -- All you have to do is turn the crank GÇô then watch the mechanical energy you provide turn into electrical energy! -- Produces a terminal voltage of 6V and maximum current output of .2A. -- Comes with two 15GÇ¥ leads for powering other electric circuits and with a standard light bulb.
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or to order
HandHeld DC Generator
from Edmund Scientific's
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Solar Electricity Kit
$9.95
Learn about solar power with this optical illusion demonstration kit. Consisting of a solar cell array, miniature motor, wind propeller, optical illusion discs and instruction manual, you can conduct experiments to determine the difference between sunlight and artificial light. -- This seemingly simple kit opens up a world of possibilities for learning and experimentation. A great introduction to solar power, this also makes a great start to any number of science fair projects.
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or to order
Solar Electricity Kit
from Edmund Scientific's
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