In the age of cheap sensors and microcontrollers, it’s easy to forget that there might be very simple mechanical solutions to a problem. [gzumwalt]’s 3D printed mechanical edge avoiding robot is a beautifully elegant example of this. The only electric components on this robot is a small geared DC motor and a LiPo battery. The…

“Edmund M. Clarke, the FORE Systems Professor of Computer Science Emeritus at Carnegie Mellon University, has died of Covid-19,” writes Slashdot reader McGruber. From the Pittsburgh Post-Gazette: Professor Clarke was best known for his work in model checking, an automated method for detecting design errors in computer hardware and software. CMU president Farnam Jahanian said…

In October, Edward Snowden was granted permanent residency in Russia. A new web page by the EFF applauds his past activities as a U.S. whistleblower. “His revelations about secret surveillance programs opened the world’s eyes to a new level of government misconduct, and reinvigorated EFF’s continuing work in the courts and with lawmakers to end…

Mashable reports: The Japan Aerospace Exploration Agency showed off a collection of samples from the asteroid Ryugu on Thursday following the return of the Hayabusa2 probe. The black, gravelly samples from Ryugu contain a whole bunch of small chips collected from the asteroid’s subsurface… Normally, space rocks like these are collected after they enter Earth’s…

Long-time Slashdot reader fahrbot-bot summarizes an article from LiveScience: There’s a giant asteroid somewhere out in the solar system, and it hurled a big rock at Earth. The evidence for this mystery space rock comes from a diamond-studded meteor that exploded over Sudan in 2008. NASA had spotted the 9-ton (8,200 kilograms), 13-foot (4 meters)…

People have been working metal for so long that the list of tips and tricks is now nearly infinite. So it’s always a joy to pick up a new trick, especially one as simple as putting a hardened edge on mild steel using a drill bit as a filler rod. This tip comes to us…

A lot of the holiday sales have ended, but you can still find a few deals on Apple’s flagship wearable. …read more Source:: CNet

A Utah newstation interviewed the men claiming responsibility for removing the original monolith in Utah, who reveal where, why, and how they took it: Homer Manson described how they brought tools, but in the end they were able to simply push the monolith over and it fell on the ground… “We actually passed another crew…

Can’t afford the $549 AirPods Max? The AirPods Pro are just $199 right now, and the standard AirPods with a wired charging case are down to $129. …read more Source:: CNet

FrankOVD shares this report from CNET: The people were really into the GMC Hummer EV when the brand finally ripped the cloak off the electric pickup truck earlier this year. So much so that the Hummer EV Edition 1 trim sold out in 10 minutes. Now, GMC is reportedly thinking about building more of them…