Hasta La Gadget!

Solar cell development is typically a small numbers game, and a group of researchers at the University of Toronto have managed to eke out a few more percentage points in efficiency with a new record-breaking cell. Setting a high mark for this type of cell, the team’s Colloidal Quantum Dot (CQD) film harvests both visible and non-visible light at seven percent efficiency, a 37 percent increase over the previous record. The breakthrough was achieved by leveraging organic and inorganic chemistry to make sure it had fewer nooks and crannies that don’t absorb light. With the advantages of relatively speedy and cheap manufacturing, the technology could help lead the way for mass production of solar cells on flexible substrates. In the meantime, check out the source for the scientific lowdown.

Filed under: Science

Researchers create record-breaking solar cell, set bar marginally higher originally appeared on Engadget on Sun, 05 Aug 2012 03:23:00 EDT. Please see our terms for use of feeds.

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By far the greatest challenge for robots with legs is staying upright when the going gets rough. A team at the University of Pennsylvania’s Kod*lab has a hunch that we don’t need extra smarts to make that happen — just an extra appendage. The upgraded X-RHex Lite (XRL) carries a tail that will swing in the right direction to keep the robot upright if it’s caught out by a fall, much like a cat. That’s impressive for a nearly 18-pound robot (the previous Tailbot was 0.4 pounds), but we’re pretty sure no feline has six springy legs; the XRL can crash to the ground and still get back up like it ain’t no thing, which gives it a fudge factor others don’t have. We don’t know if the hexapod critter will lead to more than further experiments. If there are fewer stuck rovers on future exploration missions, though, we’ll know who to thank.

Continue reading X-RHex Lite robot grows a tail, always lands on its feet (video)

Filed under: Robots, Science

X-RHex Lite robot grows a tail, always lands on its feet (video) originally appeared on Engadget on Mon, 30 Jul 2012 22:41:00 EDT. Please see our terms for use of feeds.

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Hearing that fuel cells aren’t the most efficient thing in the world shouldn’t take you by surprise, but a determination by one Alfred Anderson just might. The chemistry professor from Case Western Reserve University is now making a case for using something other than platinum as the “catalyst most commonly used to convert chemical energy to electricity.” According to him: “Using platinum is like putting a resistor in the system.” To be fair, Anderson still isn’t sure which material should replace it, but he’s adamant that wizards in the field should be spending their time looking for substitutes instead of tweaking platinum further. Currently, he’s working with other researchers in order to find something that’ll one-up what we’re using today, and if you’re into oodles of technobabble, you can dig into the ins and outs of his claims in the source link below.

Filed under: Science

Researcher calls platinum wrong for fuel cell development, looks elsewhere for efficiency originally appeared on Engadget on Mon, 16 Jul 2012 14:22:00 EDT. Please see our terms for use of feeds.

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