Today, incandescent bulbs are notorious for their short lives, but in part, that is because they are regularly turned on and off, which exposes the tungsten wire inside to rapid expansion and ...
J. The monster bulb is of 150,000 candlepower and requires four large cables to supply the 30,000 watts it burns. Four long strips of heavily corrugated tungsten steel were used as filaments.
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Basic supplies include soda-lime glass tubing and pre-coiled tungsten filaments ... leads and pinched into a stem of glass tubing. A bulb is blown in another piece of tubing and the two are ...
China, the U.S.'s third-largest trade partner, has restricted exports of the strategic metals tungsten, bismuth, indium, molybdenum and tellurium.
Back in the old days, of course, we had tungsten, incandescent light bulbs. They’ve been abandoned to history because unless you wanted to heat your room – in which case they would help a ...
The production of tungsten carbide can be traced back to the early 1920s when the German electrical bulb company, Osram, sought alternatives to costly diamond drawing dies for tungsten wire ...