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Latest Vidya Madhavan Stories

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2009-06-17 16:05:00

Superconductivity is a unique state in which electrons move freely inside a solid material. This complete lack of electrical resistance could translate to incredibly efficient electric power cables, as well as many other promising technologies.But there's a hitch. Most superconductors become that way only at very low temperatures, often near absolute zero (around -273 degrees Celsius or -460 degrees Fahrenheit). To chill a material enough so that its electrons become "unglued" from their...


Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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