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Encyclopedia of Electronic Components Volume 3: Light, Sound, Heat, Motion, Ambient, and Electrical Sensors

Encyclopedia of Electronic Components Volume 2: LEDs, LCDs, Audio, Thyristors, Digital Logic, and Amplification, Charles Platt, Fredrik Jansson, eBook - Amazon.com

Coin Ring ...how to make a ring out of a circle cut from sheet.... put it through a rolling mill first to texture the metal, cut circles, drill out center, anneal as needed, hammer on a mandrel, switching the way the ring faces on mandrel.... pickle to remove firescale, liver of sulphur, polish.

Coin Ring ...how to make a ring out of a circle cut from sheet.... put it through a rolling mill first to texture the metal, cut circles, drill out center, anneal as needed, hammer on a mandrel, switching the way the ring faces on mandrel.... pickle to remove firescale, liver of sulphur, polish.

Arduino-powered Robot Solved A Rubiks Cube In Less Than 1 Second A new robot made by an industrial engineer has solved a completely scrambled Rubiks Cube in less than one second. Powered by ArduinoSub1 uses a solution thats calculated with Tomas Rokickis extremely fast implementation of Herbert Kociembas Two-Phase-Algorithm. In late January a robot solved a completely scrambled Rubiks Cube in less than two seconds and generated a huge round of applause. The inventors Flatland and…

How To Make a Gas Mask From a Two-Liter Bottle

In this video, Black Scout Survival makes a gas mask with a bottle, a can, rubber bands, cotton rounds, duct tape, medical tape, and activated charcoal.