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 ...

Plasma cutting – occasionally referred to as ‘plasma arc cutting’ – is a melting process that sees a high-temperature ionized gas jet used to melt the material and expel it from a cut. This ionized ...