New robotic arm promises to mind Newton's third law

Don't you hate it how simply moving a robotic arm in a microgravity environment can produce enough negative reaction forces to alter a spacecraft's orientation? Well, a group of researchers from Cornell University have now devised a new type of robot arm that they say could make that pesky problem a thing of the past. To do that, they've employed a device known as a control-moment gyroscope (or CMG) instead of a motor to control the arm's joints, which not only reduces the amount energy required to move the arm, but lets it move faster as well. As you can see above, they've already tested the arm on board NASA's famous Vomit Comet, but there's no indication just yet as to when or if the arm will actually see action in space.

Pleo roundup: spy cam / XBee hacks, dino visits the day spa

Oh Pleo, it's been far too long since we've seen you out and about! Thankfully, we've stumbled upon a handful of Pleo news all at once, so we hope you're ready to catch up with your favorite dinosaur. First up is a pair of useful hacks from GRIP: a spy cam hack -- which transmits images from the pet to a PC sans wires -- and an XBee hack, which allows users to monitor Pleo's sensors and control its servos in real time. For those looking for less work and more laughs, you'll definitely want to venture on past the break. Wondering what's there? Pleo visits the day spa -- need we say more?

Read - Pleo hacks
Read - Pleo's day spa adventures

Continue reading Pleo roundup: spy cam / XBee hacks, dino visits the day spa

Swarm robots invade UK conference, lets hope they're all accounted for

It looks like the Artificial Life XI conference hosted by the University of Southampton was home to a unsettling number of swarm robots this week, including some we've seen and some we haven't. Among the more interesting of the lot are the matchbox-size bots (pictured above) developed by a group of researchers from the host university, which apparently cost just £24 (or $46) each to produce and are able to independently divide up tasks with no central program controlling them. They're even able to redistribute tasks if some of the robots fail or are removed from the area, which the researchers say makes them ideal for use in far-flung locations and, as the BBC's video available at the link below shows, they're also adorable when set to music.

[Thanks, David]