In an attempt to understand how humans react to having a robotic weight loss coach in their home versus simply using the software that the machine is loaded with, the imaginative folks at MIT have constructed a sociable robot that wants to see you reach your ideal weight. The robot uses internal cameras and face-tracking software to maintain eye contact with you while you attempt to fib about exactly how much exercise you’ve had, and the external touchscreen allows you to input data such as food / calorie consumption and duration of exercise. The creature is slated to hit the homes of select Bostonians as the designers begin to test its long-term effectiveness, but those looking for a glimpse of it in action should check out the video provided in the read link.

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Anyone at all interested in home robots — especially those too lazy to vacuum their own floors — will want to see just how well iRobot’s new Roomba 560 fares against its predecessor, the Discovery. Well, we’ve pitted the two against one another in noise, speed, cable management, docking, and, of course, ability to destroy one another. Embedded player after the break.

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We can’t stress our “don’t try this at home” attitude strongly enough towards readers over this piece of robot hackery from the 5Voltcore collective, called the knife.hand.chop.bot. The basic premise is this: the robot plays a game of “Mumblety-Peg,” a test of courage wherein a blade is brought down between your fingers at an ever increasing pace. Of course, we’ve all played a round or two of this game with friends, but it’s unlikely that many of us have allowed a bot to play, much less do all the shot-calling. The system manages to avoid slicing fingers due to signals it receives from an onboard sensor which guides the knife, however, it also utilizes contact sensors underneath the user’s hand, which can detect moisture (aka “nervous sweat”). The sweat triggers “stressful” sounds via closure of the contacts, and can have an adverse effect on the accuracy of the aiming mechanism, thus increasing your stress, thus causing you to sweat, thus throwing off the aim, thus… well, we’re just going to keep our mitts off of the thing. Check the video after the break to see what all the sweating is about.

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The US military has already upped the arsenal of its robots deployed in Iraq, and it now looks to be planning to expand its non-human forces even further, with it recently putting out word of a competition to find a company that can quickly deliver a slew of new bots. According to Wired’s Danger Room, these new robots won’t be armed, but will instead mainly be used for reconnaissance duty, and must include the ability to look inside car windows and peer underneath vehicles. Due to the urgent need for the bots, the Army’s done away with the usual formal bid process and will effectively be awarding a contract on the spot to the winner of the competition, who will be required to deliver its first bots within ten days. The Army then hopes to have 1,000 new reconnaissance bots by the end of the year, with another 2,000 planned for the next five years. As Danger Room reports, iRobot seems to be the favorite to win the competition, especially considering the requirement get the bots off the assembly line as quickly as possible.

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