Building the electromagnetic coil gun. The simplified edition is very cheap and easy to build (and requires no explosive propellant!). The following circuit is what I designed and built: Electronics ...

I was gifted one of those, in the later~mid 1960’s. Coil of at the bottom of frame along with the “D” cell holder. Chunk of (rough cast appearance) material on the pendulum.

Remember that when the supply is switched off, the magnetic field will tend to collapse and in doing so will generate a back EMF (BEMF) or counter EMF (CEMF) in the electromagnet coil windings. If ...

State-owned arms maker China South Industries Group (CSGC) has released footage of its electromagnetic coil gun. Allegedly capable of firing 3,000 rounds per minute, the prototype represents a ...

An Electromagnet Brings Harmony To This Waving Cat. 9 Comments . by: Kerry Scharfglass. June 1, 2018. ... Presumably part of the coil is the sensor, feeding the base of the transistor, ...

So I built a buzz coil, a project derived from the ignition on a Model T that you can toss together to satisfy all your sparking needs with a just a few common automotive parts. Search for: Science ...

This homemade gun uses electromagnetic coils to send steel rods flying at a speed of 138 feet per second. Pressing the trigger loads a steel rod into the barrel, where the first electromagnetic ...

Clutches and brakes with an electromagnetic interface offer definite advantages, including accurate engaging and clean releasing. Besides being quick, they also run cooler and cleaner, with the ...

Scientists at the Oak Ridge National Laboratory in Tennessee used a "polyphase electromagnetic coupling coil" with rotating magnetic fields to wirelessly charge a Hyundai Kona EV, which has an ...