The best recent videos on Interesting Engineering

Some of the best videos to appear on Interesting Engineering this week include:

A long-distance sprinkler system.

A device to harvest a whole olive tree at a time.

River-cleaning autonomous robots.

An instant flotation aid for uncertain swimmers.

A stone-crushing behemoth.

A frisbee-shooting training tool.

An explosive way to smother fires.

A discreet safety ladder for when you need one.

Laser cleaning made fast and easy.

Automatic chest-compressing machinery for CPR.

The escape slide on the SpaceX launch pad.

And how laser tattoo removal works.

Come back for more of the best engineering video content on the internet – Interesting Engineering.