The 3D-printed robot above weighs just one milligram and is only 2.5mm at its longest point. Designed by University of Maryland mechanical engineer Ryan St. Pierre and his colleagues, it is likely the smallest walking robot in the world. Video of the microbot scurrying along is below. From IEEE Spectrum:
Like its predecessors, this robot is far too small for traditional motors or electronics. Its legs are controlled by external magnetic fields acting on tiny cubic magnets embedded in the robot’s hips. Rotating magnetic fields cause the magnets to rotate, driving the legs at speeds of up to 150 Hz. With all of the magnets installed into the hips in the same orientation, you get a pronking gait, but other gaits are possible by shifting the magnets around a bit. Top speed is an impressive 37.3 mm/s, or 14.9 body lengths per second, and somewhat surprisingly, the robot seems to be quite durable—it was tested for 1,000,000 actuation cycles “with no signs of visible wear or decreased performance.”
Google is reported to be under investigation by the United States National Labor Relations Board (NLRB.gov) for allegations of discouraging union organizing among workers, and for firing the so-called “Thanksgiving Four.”
Senator and 2020 US presidential candidate Bernie Sanders’ “High-Speed Internet For All” plan, unveiled today, promises $150 billion to build publicly owned broadband networks — and to break the chokehold that Comcast, Verizon, and AT&T have on Americans’ access to information and communication.
There are a lot of high-tech drones and RC planes flooding the market lately, and the innovations are coming so fast on each new iteration, most of them forget one crucial thing: Flying these is supposed to be fun. Here’s an alternative that keeps that ethic firmly in mind: The Moskito Smartphone-Controlled Plane. This thing […]
There are few intellectual exercises better than a good game of chess against a capable opponent, which is why a lot of old hands at the gameplay it online. But there’s still nothing like the tactile thrill of moving a knight into checkmate. (Or sweeping the pieces off dramatically when you lose.) That’s why we’re […]
Got a real music junkie on your list this year? It’s a good bet that they already have a solid pair of earbuds, but probably nothing quite like these Seeds Earphones. Here’s the thing: Wireless earbuds are all the rage right now, and there are a lot of good reasons for that. But for true […]
