This really isn't that impressive. Those cables are fiber optics that transfer the laser beam from a substantially larger cabinet that is out of view in the video. Most of the actual cutting is performed by a pressurized gas. All the laser does is liquefy the metal and allow the assist gas to blow away the material.

For…

OK fair enough, but in my defense that criticism also applies to everyone else who has ever uttered the term "laser rifle" which is a lot of people.

I'm going to go ahead and be the jerk to point out: It's not a rifle, that implies rifling. If it's a laser it doesn't need to be a rifle, because A. You can't make the beam spin, and B. The beam is already perfectly strait.

Rube Goldberg might disagree with you.

where is this pool from?

Except for the USS Kearsarge (even that is named after another ship, which in turn is named after a mountain), no United States battleships have ever been named after people or artifacts. C'mon, Rosetto, you can research better!

USS Missouri begs to differ.

Printing in metal is not new.

Que the stories of 5 year olds facing prison time for bringing them to school.

nice photoshop

In darkness you'd be surprised.

This seems like something I would of seen back then on ZOOM or in between Arthur episodes on PBS.

I dunno... I keep watching and none of these are slowing down.

An overbalanced wheel wouldn't "work" even if you could somehow eliminate friction. Even though the arm on the overbalanced side is longer, there are more arms on the opposite side; it all adds up to zero torque.

I work in the automotive rotating electrical world and we constantly have customers trying to adapt alternators into perpetual motion machines. You can always tell them apart from the other customers because they never want to tell you what they are doing. Then, they buy five high-amperage alternators and wonder why…

What does an AR-15 have to do with an X-ray weapon? WTF Casey???