Question: Could plasma guns be possible?

Euan Allen answered on 20 Jun 2016:

Probably not the kind that are depicted in films or computer games. Lightning is actually a form of plasma and so you could say that a tesla coil is a plasma gun. We have a kind of plasma sword, called a plasma cutter, which we use in engineering.

But who knows what technology or science could bring. We might see something more like how we see them in films one day!