Like scoreboards, they also rely on modules, consisting of rows of LEDs illuminated at a lower voltage than most scoreboards and controlled over a secured Internet connection.
Each glass sheet has rows of conducting wires running across it, and the two sets of wires are at right angles, so that a voltage can be applied across the liquid crystal at any chosen intersection.
When a voltage was applied at the ends of the yarns, these ions moved into the fibres, causing them to expand.
At one million volts, one of the guns had a voltage 20 times that of the 50, 000 volt weapons carried by police.
To send power miles away without huge line losses demanded that electricity be stepped up to a high voltage, then stepped down again at the receiving end.
The agency is still investigating the cause of the battery's sharp fall in voltage, Norihito Goto, its chairman, said at a news conference.
Wiens, 27, was injured in 2008 when he was volunteering at his church and his head got too close to a high-voltage power line.
The power electronics unit integrated in the engine compartment operates at a level of around 370V and manages the flow of high-voltage energy to and from the battery and the electric motors.
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To gather venom for commercial purposes, beekeepers place a sheet of glass embedded with low-voltage electrical wires at the hive entrance.
With a big enough voltage between cathode and anode, they will leap at great speed from the one to the other.
Another group, led by William Ditto at the Georgia Institute of Technology and Francis Witkowski at the University of Alberta, is using a dye that lights up in response to voltage changes to map the heart's response.
In order to fully exploit the sound potential of the HDVD 800 with any audio source, a rotary gain switch at the rear of the unit provides simple adaptation of the amplifier output to the audio input voltage.
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