Only a couple centuries ago, if somebody claimed they could hold lightning in their hand to fuse steel, they would stand a pretty good chance of being burned at the stake for witchcraft. Luckily, ...
In the tungsten inert gas (TIG) welding process, an electric arc is struck between a refractory electrode made of tungsten and the work piece, while a shroud of inert gas, usually argon, shields the ...
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