Many of us have wondered at least for one time that how do people precisely cut materials like stainless steel, aluminum, brass, and copper? Well, they basically use a technique called plasma cutting ...

Plasma is superheated, compressed air that ionizes to form a conductive gas. This gas conducts electricity from the torch of the plasma cutter to the work piece, through a electrode and copper nozzle ...

Behold the awesome glory of the plasma cutter. These torches create electrically conductive jets of hot plasma that will cut through just about any conductive material, from steel to to brass. In the ...

Wookiepedia, the Star Wars Wiki, says that lightsabers have no feel because the "blade" has no weight. All the heft is in the hilt. That means a lightsaber-wielder has no definitive sense of the light ...