Most people treat a phone that looks like it lost an argument with traffic as scrap. LastComputer paid about forty dollars for one anyway. The listing came to 1,700 Ukrainian hryvnia, and a carrier lock kept the price down because nobody was going to drop a SIM in it again. This Samsung Galaxy S23 arrived […]
Dr Semiconductor already had working DRAM cells from a class 100 cleanroom built inside a home backyard shed. Packaging those silicon chips onto a circuit board was the next problem, because silicon is opaque and lining up pads by eye is a guessing game. Gallium nitride grown on sapphire is transparent, already contains the layers […]
Amirhossein Kazemipour, Hehui Zheng, and Robert Katzschmann of ETH Zurich’s Soft Robotics Lab began with a commercial WUJI right hand with five fingers designed for grabbing. They put a Raspberry Pi, an IMU, and a battery to its back, resulting in a package weighing 818 grams and operating without a cable. Twenty powered joints remained […]