Bald eagles, besides being majestic and graceful and standing for freedom and all that, have a pretty cool trick: they can scoop fish straight out of the water. Flying low, they extend their talons and grab the fish from below the surface, carrying it home for a triumphant feast. Now, scientists at the University of Pennsylvania in Philadelphia have made a drone that can imitate this same feat. Watch it in action below:
Tactical UAV or serious toy spy plane? Keep up with-and keep tabs on-the Joneses
By Eric Adams
Posted 03.09.2006 at 3:00 am 1 Comment
It takes two sets of wings to Tango-this unmanned aerial vehicle (UAV) from Draganfly Innovations uses tandem front and rear wings pitched in opposite directions (front set up, rear set down) to significantly increase its stability in the air, which makes it easier to control. Available as either a remote-controlled UAV or a fully autonomous drone, the fiberglass Tango uses a camera [A] in its underbelly and a 2.4-gigahertz radio antenna to send TV-quality live video to your computer.
By Joe Brown
Posted 12.01.2004 at 5:00 pm 0 Comments
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.