These are generally electrically powered.

* In powered vehicles, some form of transmission, usually electrically powered traction motors or a hydraulically powered torque converter

The railway uses three electrically powered trains, with a passenger capacity of 540 passengers per hour.

All stock used was electrically powered.

Large-scale petrol-mechanical and petrol-hydraulic models are available but unusual and pricier than the electrically powered versions.

In 1961 the American physicist Eugene Kunzler and coworkers at Bell Labs discovered that niobium-tin continues to exhibit superconductivity in the presence of strong electric currents and magnetic fields, making it the first material to support the high currents and fields necessary for useful high-power magnets and electrically powered machinery.

In the 1940s, the first electrically powered digital computers were created.

A small, electrically powered pump

Strictly the term refers to the pump itself, which is normally manually operated, though electrically powered and gas powered pumps are occasionally used.

* Åland islands: Thanks to a law revision by the Government of Åland concerning " small electrically powered vehicles ", the Segway and all other, mainly aimed to be one person electrical vehicles, are in Åland classified as bicycles since 14 March 2012.

The concept of electrically powered transmission of television images in motion was first sketched in 1878 as the telephonoscope, shortly after the invention of the telephone.

John Ericsson invented an electrically propelled torpedo in 1873 ; it was powered by a cable from an external power source, as batteries of the time had insufficient capacity.

The Nordfelt torpedo was also electrically powered and was steered by impulses down a trailing wire.

The filament, no longer electrically connected to the tube's electrodes, became simply known as a " heater ", and could as well be powered by AC without any introduction of hum.

The main components of the drive system of any electrically powered boat are similar in all cases, and similar to the options available for any electric vehicle.

Home incubators are boxes holding from half a dozen to 75 eggs ; they are usually electrically powered, but in the past some were heated with an oil or paraffin lamp.

As with all forms of electrically powered spacecraft propulsion, thrust is limited by available power, efficiency, and specific impulse.

The Magnetoplasmadynamic ( MPD ) thruster ( MPDT ) is a form of electrically powered spacecraft propulsion which uses the Lorentz force ( the force on a charged particle by an electromagnetic field ) to generate thrust.

Loaded cable is no longer a useful technology for submarine communication cables, having first been superseded by co-axial cable using electrically powered in-line repeaters and then by fibre-optic cable.

Smaller versions, for use in garages or small workshops, are usually electrically powered.

A civil defense siren ( also referred to as an air raid, civil defence, tornado, tsunami, fire, flood, weather, time, curfew, earthquake, storm, police, emergency, hurricane, or other outdoor warning siren / whistle / horn / alarm ) is a mechanical or electronic device ( modern-day sirens are electrically powered whether they are electronic or electro-mechanical ) for generating sound to provide warning of approaching danger and sometimes to indicate when the danger has passed.

Power windows were available on the 98 models, as was two-speed electric windshield wipers with electrically powered windshield washers.

This underground world is lit by electrically charged gas at the ceiling, and is filled with a very deep subterranean ocean, surrounded by a rocky coastline covered in petrified trees and giant mushrooms.

A ceiling fan is a mechanical fan, usually electrically powered, suspended from the ceiling of a room, that uses hub-mounted rotating paddles to circulate air.

A punkah fan moves slowly in a pendular manner with a rather large blade and is nowadays electrically powered.

In 1880, a stretch of Broadway between Union Square and Madison Square was illuminated by Brush arc lamps, making it among the first electrically lighted streets in the United States.

The first experimental device demonstrating the principle was a row of closely spaced metal squares on an oxidized silicon surface electrically accessed by wire bonds.

The explanation of these effects was that the high voltage accelerated electrically charged atoms ( ions ) naturally present in the air of the tube.

In these investigations, a sender, who was isolated in a visually opaque, electrically and acoustically shielded chamber, was stimulated at random by bursts of strobe-light flickers The experimenters reported that, for one receiver, differential alpha block on control and stimulus trials were observed, which showed that some information transfer had occurred.

The latter was a keyboard instrument with plectra ( picks ) activated electrically.

The first electrically amplified guitar was designed in 1931 by George Beauchamp, General Manager at National Guitar Corporation with Paul Barth who was Vice President.

By 1932 an electrically amplified guitar was commercially available.

The earliest documented performance with an electrically amplified guitar was in 1932, by Gage Brewer.

It was proposed that the force on magnetic poles, by Johann Tobias Mayer and others in 1760, and electrically charged objects, by Henry Cavendish in 1762, obeyed an inverse-square law.

Later, magnesium ribbon was used in electrically ignited flash bulbs.

The characteristic brilliant red-orange color that is emitted by gaseous neon when excited electrically was noted immediately ; Travers later wrote, " the blaze of crimson light from the tube told its own story and was a sight to dwell upon and never forget.

Each character in a message was electrically combined with a character on a paper tape key.

A later change was the addition of an electrically controlled clamp to hold the pens, which allowed them to be changed, and thus create multi-colored output.

File: Coulomb. jpg | Charles-Augustin de Coulomb ( 1736-1806 ): formulated a law in 1785 which described the electrostatic interaction between electrically charged particles ( attraction and repulsion ) and was essential to the development of the theory of electromagnetism, namesake of the unit of electric charge: the coulomb ( C )

It was known that the nucleus was composed of protons and neutrons and that protons possessed positive electric charge while neutrons were electrically neutral.

Inside the cathode, and electrically insulated from it, was the filament or heater.