Mark Rober's CrunchLabs - Season 3 Episode 1

Season 3 Episode 1

Lava vs Laser Destruction Test

24m ·★ 9.7 ·United States · EN

What's the most destructive substance on Earth? Lava's the reigning champ - but how do lasers stack up? Mark and his friends are about to find out.

NEXTEp 2: Backyard Squirrel 2.0 - Bank Heist›

Episodes

S03E0116 Mar 2624m

Lava vs Laser Destruction Test

What's the most destructive substance on Earth? Lava's the reigning champ - but how do lasers stack up? Mark and his friends are about to find out.

S03E0216 Mar 2618m

Backyard Squirrel 2.0 - Bank Heist

Mark ups his backyard obstacle course game to keep four thieving squirrels away from a bank vault full of birdseed and a lifetime supply of walnuts.

S03E0316 Mar 2610m

Building a Liquid Sand Hot Tub

With the right amount of forced air, a hot tub filled with sand can look like a bubbling pot of soup. But how? Mark breaks down the science behind it.

S03E0416 Mar 2624m

This Ball Is Impossible to Hit

Mark uses the magic of engineering to level the playing field in a stacked competition against the world's greatest wiffle ball players.

S03E0516 Mar 2622m

Vortex Cannon vs Drone

Mark explores the possibilities of anti-drone defense technologies with a crew of backyard YouTube engineers... and the world's largest vortex cannon.