A new brushless dc motor from MicroMo Electronics Inc. has an external motor-diameter of only 20 mm and a length of 57 mm. It provides high power-to-volume ratio by using a skewed winding in combination with a rotor made of Neodymium rare-earth magnets to provide cog-free motion. The brushless dc motor can achieve a continuous output torque up to 18 mNm at speeds up to 58,000 rpm. The motors come in a sterilizable version capable of withstanding an autoclave environment. The Series 2057 can be combined with a gearbox and encoder for a miniature dc drive system.
A simple new chemical method for repairing and recycling notoriously difficult carbon fiber composites has been developed by the Fraunhofer Institute for Applied Polymer Research. An entire component can be completely recycled, including reclaiming its expensive carbon fibers for reuse.
In today’s connected world we are seeing the beginning of connected homes, smart grids, self-driving automobiles, drones, and many other amazing devices. Out of all the soon-to-be connected devices, which device poses the greatest dangerous to its users and society?
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