Marvin Birnbom started selling WWII surplus in 1947. That business has grown into surplustraders.net, which offers more than 900 pages of deeply discounted electronic overstock. The site lists both bulk deals—1,000 AA batteries for eight cents each, 10 keyboards at $4.50 per—and a few individual items (12.1-inch LCD screens for $89 apiece). But Birnbom, a hobbyist himself, will sell you any quantity of anything as long as you meet the $30 minimum order. Just give him a call: 514-739-9328.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.


Online Content Director: Suzanne LaBarre | Email
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Associate Editor: Dan Nosowitz | Email
Assistant Editor: Colin Lecher | Email
Assistant Editor: Rose Pastore | Email
Contributing Writers:
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Kelsey D. Atherton | Email
Francie Diep | Email
Shaunacy Ferro | Email