zamboni pile造句

• One form of dry pile is the Zamboni pile.
• The Zamboni pile of 1812 was a high-voltage dry battery but capable of delivering only minute currents.
• A Zamboni pile is an " electrostatic battery " and is constructed from discs of silver foil, zinc foil, and paper.
• The famous Oxford Electric Bell, which has been ringing continuously since 1840, is thought to be powered by a pair of Zamboni piles.
• Zamboni piles of more modern construction were manufactured as recently as the 1980s for providing the accelerating voltage for image intensifier tubes, particularly in military use.
• Note that the Zamboni pile is not a hypothetical perpetual motion device, as all action will eventually cease when the zinc is completely oxidized or the manganese exhausted.
• The exact composition of the dry piles is unknown, but it is known that they have been coated with molten sulphur for insulation and it is thought that they may be Zamboni piles.
• The EMF per element is approximately 0.8 volts; with thousands of stacked elements, Zamboni piles have output potential differences in the kilovolt range, but current output in the nanoampere range.