The value of a mirror is in its clarity. If the reflection is cast by [danicakostic17]’s Uncooperative Mirror though, you’ll find anything but. It’s described as a useless machine, because it appears ...

A DIY rotary inverted pendulum you can print, solder, and train at home — for about £20 in parts. It's an open, hackable take on the rigs you'd usually buy from a lab-equipment vendor (Quanser's QUBE ...

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the reason I chose this field is that my original major is electronic and electrical circuits. Despite calling myself an engineer, I have forgotten much about the electronic and electrical circuit ...