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.”
‘If you suspect political bias caused such an action to be taken against you, share your story with President Trump.’
Marginalized Native American communities throughout the United States could have better access to high-speed internet if the Federal Communications Commission (FCC) decides to allow tribes to use the Educational Broadband Services (EBS) spectrum for services like telemedicine, transmitting medical records electronically, or an online high school.
U.S. Federal Communications Commission Chairman Ajit Pai proposed a new rule to allow carriers to block robocalls. “The American people are fed up with illegal robocalls,” he said.
Heads up: The clock is winding down on a free-entry contest to win not only one of the best smartphones on the market but a handy pair of earbuds. A simple sign-up is all you need to be eligible to win a 256 GB iPhone XS Max, along with AirPods. And while “free” is tough […]
Kudos to those of us who have chosen a less wasteful third option to “paper or plastic” at the supermarket or club stores. Tote bags are reusable, but they can be a pain to tote around. Here’s an upgrade to that planet-saving measure. The Club Cart Lotus Trolley Bag is that rare tote you’ll want […]
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