Name: World's Largest T-Shirt Cannon (breaks the roof)
Released: 2026-07-10
Duration: 1121

Schedule for Mark Rober TV

World's Largest T-Shirt Cannon (breaks the roof)

I was challenged to build a T-Shirt cannon. I accepted the challenge.

2026-07-10 22:21:48 +0000 UTC→2026-07-10 22:40:29 +0000 UTC(18m)

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How To See Germs Spread Experiment (Coronavirus)

Using specialized glowing powder to trace the invisible spread of bacteria, Mark conducts a series of classroom experiments to visually demonstrate how easily germs transfer between people and everyday surfaces.

2026-07-11 01:15:50 +0000 UTC→2026-07-11 01:25:24 +0000 UTC(9m)

Incredible Chain Reactions!- Camp CrunchLabs Week 10

Welcome to the tenth week of Camp CrunchLabs, this week we will be going over some of your best submissions for the best trick-shot challenge!

2026-07-11 00:41:06 +0000 UTC→2026-07-11 01:15:50 +0000 UTC(34m)

Revealing 5 Secret Magic Tricks With Science

Who knew the secret to magic was diapers...

2026-07-11 00:30:43 +0000 UTC→2026-07-11 00:41:06 +0000 UTC(10m)

Flying Phone Scam Exposed (so I built a REAL one)

Don't mess with my people. I saw a viral video of a guy who supposedly put propellers on his phone case. With my engineering background, it was clearly fake—yet people believed it and bought it via affiliate links. So, I did a deep dive into every clue proving it's a hoax.

2026-07-11 00:17:58 +0000 UTC→2026-07-11 00:30:43 +0000 UTC(12m)

Filling My Warehose with 10,000+ Balloons (Camp Year 3, Episode 7)

Welcome to the seventh week of Camp CrunchLabs! This week we're making the world's largest balloon room!

2026-07-10 23:47:01 +0000 UTC→2026-07-11 00:17:58 +0000 UTC(30m)

Flying Phone Scam Exposed (so I built a REAL one)

2026-07-10 23:34:16 +0000 UTC→2026-07-10 23:47:01 +0000 UTC(12m)

Rock Skip Robot- The Science of Perfect Rock Skipping

I built a rock-skipping robot with my nieces and nephews to find the perfect skip. We learned 4 things matter most: a 20° rock angle, a 20° path angle, maximum spin, and a flat-bottomed rock that is as heavy as possible without slowing your arm speed.

2026-07-10 23:23:38 +0000 UTC→2026-07-10 23:34:16 +0000 UTC(10m)

Mind Blowing Illusions!- Camp CrunchLabs Week 4

Welcome to the fourth week of Camp CrunchLabs, this week we will be going over some of your best submissions for the forced perspective challenge!

2026-07-10 22:40:29 +0000 UTC→2026-07-10 23:23:38 +0000 UTC(43m)

World's Largest T-Shirt Cannon (breaks the roof)

I was challenged to build a T-Shirt cannon. I accepted the challenge.

2026-07-10 22:21:48 +0000 UTC→2026-07-10 22:40:29 +0000 UTC(18m)

FINAL SCIENCE CLASS- How to Survive a 5 Mile Fall with No Parachute

We'll be doing dangerous things like smashing a bunch of glass with rockets and talking about the farthest man made object and I'll explain why this is my last one. See you there and don't be tardy or it's a detention.

2026-07-10 21:42:27 +0000 UTC→2026-07-10 22:21:48 +0000 UTC(39m)