Electromagnets in a sentence

This game changing rail-gun can fire a jet of molten metal, hurled through space at several hundred miles per second by the most powerful electromagnets ever built.

A second set of vertical "hold" bars is set at right angles to the first (hence the name, "crossbar") and also operated by electromagnets.

A typical pinball machine I/O mix includes 16 to 24 outputs for driving solenoids, motors, electromagnets and other mechanical devices in the game.

By continuously switching the electric current through each of the electromagnets, thereby flipping the polarity of their magnetic fields, like poles are kept next to the rotor; the resultant torque is transferred to the shaft.

Early methods included the use of large electromagnets dragged behind ships or below low-flying aircraft (a number of older bombers like the Vickers Wellington were used for this).

High speed beams of cathode rays can also be steered and manipulated by electric fields created by additional metal plates in the tube to which voltage is applied, or magnetic fields created by coils of wire ( electromagnets ).

In 1837, William Cooke and Charles Wheatstone in England began using an electrical telegraph that also used electromagnets in its receivers.

In 1977 construction began for 6 metre (20 foot) superconducting electromagnets intended to control fusion reactions.

Shutoff rods are held above the reactor by electromagnets, and drop under gravity into the core to quickly end criticality.

Since they use electromagnets to build up the resistance, they really do not offer the intensity of resistance that one needs for an effective workout.

Superconductors are also able to maintain a current with no applied voltage whatsoever, a property exploited in superconducting electromagnets such as those found in MRI machines.

The project was an international effort, three electromagnets were produced in the US, one in Japan, one in Switzerland and the final by remaining European states and experimentation continued into the 1980s.

The propellant (a neutral gas such as argon or xenon ) is injected into a hollow cylinder surfaced with electromagnets.

The transmission electron microscope works on the same principle as an optical microscope but uses electrons in the place of light and electromagnets in the place of glass lenses.

The Williams machine The Twilight Zone featured a mini-playfield that used electromagnets controlled by the flipper buttons, allowing the player to flip the ball on the mini-playfield, essentially working as invisible flippers.

This additional weight was held in place at the throats of two hopper-like ballast silos by electromagnets, so in case of an electrical failure the bathyscaphe would automatically rise to the surface.

This current is induced inside the plasma with a second set of electromagnets.

This system works even in the event of a complete power failure, as the electromagnets only hold the rods out of the reactor when power is available.

When the select and then the hold electromagnets operate in sequence to move the bars, they trap one of the spring fingers to close the contacts beneath the point where two bars cross.