Why are laser beams always visible in films?

That's the stupidest shit I've ever seen. There's just so many things wrong with that, I'm not even going to bother.

They used double lasers that were twice as hot

Attached: SCIENCE!!.webm (400x400, 485.95K)

So you can see them

You have to hit them with a can of aerosol first. Destroy the atmosphere and reveal the laser beams. That's how it works.

I'M GONNA CUM

the best part is that even ignoring the mirror bullshit, she should have cut the other girl's legs when she moved the lasers

Attached: tfw that ass is phat.webm (658x632, 749.98K)

At least that's a cartoon.