solenoid

If there was a hole in the card on the read side, current flowed on to one of 80 little solenoids.

The article talks about a solenoid that exerts more force than the Space Shuttle does to lift itself to orbit.

It replaces the trigger with one with a solenoid behind it that it can dynamically change the pull of.

When the vacuum chamber deforms the solenoid, that energy is going to go somewhere.

But if you have a working sensor, there's no need to overstress the solenoid and mechanical linkage.

Actually, a solenoid is just a coil [1], which in electronics can be used to turn a current into a magnetic field.

These rings will definitely be in my next orderI would hesitate to wear a solenoid, due to the induced current from magnetic fields.

With a solenoid engaged by a control circuit might that be possible simply by blasting the circuit with radio waves to induce a current?

People sell rfid fobs separate from their high-security keys while cars combine the two. There's no reason you couldn't take the ECU out of a Lexus, wire it up to an arduino, plug it into a wall, attach a solenoid to a door lock and weld the lock cylinder of the car into a door handle.

It used a method called visual occlusion, which you can guess the rest ofthe pilots would sit in trainers with a set of glasses, that had spring-loaded solenoid flaps to block the pilots' vision selectively.

I'm imagining a scenario where pairs of rotating superconductor panels in orbit lift a giant solenoid into space by flux pinning its magnetic field as they rotate upwards.

Industrial automation, mine sweeping robots, goofy little vacuum cleaners, solenoid-driven irrigation systems, etc.