MIT researchers built a 70-pound robot "cheetah" meant to demonstrate the high efficiency of a new electric motor design. Among other improvements, the design enables the impact energy of the robot's leg hitting the ground to be captured and fed into the robot's battery. Soon, they expect the motors to enable the cheetah-bot to gallop at 35 mph which, of course, is still just half the speed of a real cheetah. However, it will hit those speeds much more efficiently than other running robots.
Sangbae Kim, the Esther and Harold E. Edgerton Assistant Professor in MIT’s Department of Mechanical Engineering, says achieving energy-efficiency in legged robots has proven extremely difficult. Robots such as Boston Dynamic’s “Big Dog” carry heavy gasoline engines and hydraulic transmissions, while other electrically powered robots require large battery packs, gears, force sensors and springs to coordinate the joints in a robot’s leg. All this weighty machinery can add up to significant wasted energy, particularly when a robot’s legs need to make frequent contact with the ground in order to trot or gallop.
"MIT ‘cheetah’ robot rivals running animals in efficiency
Fumihito Taguchi’s fantastic collection of vintage portable record players, including the wonderful specimens seen here, will be on display at Tokyo’s Lifestyle Design Center from July 30 to August 28. See more at this Fashion Press post and in Taguchi’s book “Japanese Portable Record Player Catalog,” available in the US from my favorite vinyl soulslingers […]
The 8-Bit Guy’s 15-minute explainer on floppy discs is a great potted history of 80s- and 90s-era storage media (it follows his segment on tape-drives) and the way that competitors learned from each others’ mistakes and dead-ends, and engineered clever solutions to one of computing’s most serious challenges. (via Motherboard)
Mexico City-based artist Pablo Dávila’s “Living in time believing in the timeless” is a beautiful, compelling installation in which the UNIX timestamp triggers drumsticks, via an Arduino and custom code, to ping crotales (aka antique cymbals). It makes the ephemeral (and digital) visceral. The work is simultaneously jarring and meditative, a rather odd and provocative […]
Having to pack and drag your stuff through security can put quite the damper on your vacation plans. Thankfully, we’ve got your back with one way to make traveling more painless: the Jumper Overnighter Travel Bag.This compact bag is so lightweight that you can effortlessly carry it, and fit it into any overhead compartment. But just […]
Learning is a 24/7/365 proposition, and it never ends. And if you’re truly serious about leveling up your skill sets and career prospects, get a subscription to Stone River Academy’s massive course collection. This offer normally is worth over $1,400, but is now available for just $89 in the Boing Boing Store.A respected name in information technology […]
Home audio has taken some big leaps forward in recent years–not just in terms of sound quality, but also in the style department. The FRESHeBAR Leather Soundbar, now 56% off in the Boing Boing Store, is proof.The FRESHeBAR comes packing almost all the options you’d ever need for a home sound system, including Bluetooth streaming capabilities.The unit’s 90 […]