Want to feel smarter than Edison? Build a lightbulb the modern way with some helium and an old welder.
The stick welder provides enough juice to heat the tungsten to nearly 5,000°F, the ice bucket acts as the bulb, and the helium displaces oxygen ...
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The stick welder provides enough juice to heat the tungsten to nearly 5,000°F, the ice bucket acts as the bulb, and the helium displaces oxygen ...
More Information