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3D-printed ghost guns pose new threat in US
In 2017, law enforcement agencies in the US recovered approximately 1,600 ghost guns, according to federal data. By 2022, ...
Hackaday1 天
Bending Light, Bending Time: A DIY Polarizer Clock
Imagine a clock where the colors aren’t from LEDs but a physics phenomenon – polarization. That’s just what [Mosivers], a physicist and electronics enthusiast, has done with the Polarizer ...
bleedingcool1 天
Blacktron Returns to LEGO from the 80s with the Blacktron Renegade
The magic of Disney and LEGO collide as a new set of BrickHeadz sets are on the way to bring new and classic characters to ...
It took NASA decades to develop this special rocket engine. AI made it in 3 weeks
In the ’60s, rocket engine design and manufacturing company Rocketdyne had tried to make the J-2T Aerospike, a toroidal aerospike concept intended as an improvement over the Rocketdyne J-2 engine for ...