Name: World's Largest T-Shirt Cannon (breaks the roof)
Released: 2026-07-04
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.

2026-07-04 23:00:14 +0000 UTC→2026-07-04 23:18:55 +0000 UTC(18m)

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Platinum Ticket Winner CrunchLabs Tour!

Had a blast hanging out with the CrunchLabs Platinum Ticket winners! Nerf battles technically count as science right?

2026-07-05 01:13:57 +0000 UTC→2026-07-05 01:21:19 +0000 UTC(7m)

Liquid Nitrogen Explosions w/ Ninja Kidz!- Camp CrunchLabs Week 9

Welcome to the ninth week of Camp CrunchLabs, this week we will be having fun with liquid nitrogen!

2026-07-05 00:57:40 +0000 UTC→2026-07-05 01:13:57 +0000 UTC(16m)

Engineers vs. Thanksgiving Dinner

We used YouTube's most expensive potato masher.

2026-07-05 00:41:44 +0000 UTC→2026-07-05 00:57:40 +0000 UTC(15m)

World's Longest Field Goal- Robot vs NFL Kicker

My Field Goal Kicking Robot v. the NFL longest field goal record holder Matt Prater.

2026-07-05 00:18:33 +0000 UTC→2026-07-05 00:41:44 +0000 UTC(23m)

World's Largest Elephant Toothpaste Experiment

I'm not a chemist. Elephant toothpaste (aka slime foam) has sort been done so many times I wanted to do it really big. We did a ton of testing.

2026-07-05 00:06:11 +0000 UTC→2026-07-05 00:18:33 +0000 UTC(12m)

Engineers Vs. Pumpkin Carving 2.0

Because scientific progress requires annual pumpkin sacrifices!

2026-07-04 23:52:46 +0000 UTC→2026-07-05 00:06:11 +0000 UTC(13m)

Measuring How Much Pee Is In Your Pool

Knowledge is power! Even if that knowledge causes you to rethink some of those lovely summer memories.

2026-07-04 23:40:32 +0000 UTC→2026-07-04 23:52:46 +0000 UTC(12m)

Mark Rober vs. Ryan Frisbee Challenge

In this playful competition for the CrunchLabs Cup, Mark welcomes popular kid creator Ryan (from Ryan's World) and his family to face off in a series of engineering-themed mini-games, tracking-focused arcade matches, and a final paper airplane showdown.

2026-07-04 23:31:09 +0000 UTC→2026-07-04 23:40:32 +0000 UTC(9m)

Measuring How Much Pee Is In Your Pool

Knowledge is power! Even if that knowledge causes you to rethink some of those lovely summer memories.

2026-07-04 23:18:55 +0000 UTC→2026-07-04 23:31:09 +0000 UTC(12m)

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

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

2026-07-04 23:00:14 +0000 UTC→2026-07-04 23:18:55 +0000 UTC(18m)

Giant Ping Pong Explosions w/ Adley!- Camp CrunchLabs Week 11

Welcome to the eleventh week of Camp CrunchLabs! This week we will be using the power of air pressure to create the ultimate rainbow ping pong ball explosions!

2026-07-04 22:45:21 +0000 UTC→2026-07-04 23:00:14 +0000 UTC(14m)

World's Largest Elephant Toothpaste Experiment

I'm not a chemist. Elephant toothpaste (aka slime foam) has sort been done so many times I wanted to do it really big. We did a ton of testing.

2026-07-04 22:32:59 +0000 UTC→2026-07-04 22:45:21 +0000 UTC(12m)

Revealing 5 Secret Magic Tricks With Science

Who knew the secret to magic was diapers...

2026-07-04 22:22:36 +0000 UTC→2026-07-04 22:32:59 +0000 UTC(10m)

Extreme Laser Maze w/ Toys and Colors (Camp Year 3, Episode 3)

Welcome to the third week of Camp CrunchLabs! This week Toys and Colors joins us for some laser maze fun!

2026-07-04 22:05:49 +0000 UTC→2026-07-04 22:22:36 +0000 UTC(16m)

Measuring How Much Pee Is In Your Pool

Knowledge is power! Even if that knowledge causes you to rethink some of those lovely summer memories.

2026-07-04 21:53:35 +0000 UTC→2026-07-04 22:05:49 +0000 UTC(12m)

Giant Ping Pong Explosions w/ Adley!- Camp CrunchLabs Week 11

Welcome to the eleventh week of Camp CrunchLabs! This week we will be using the power of air pressure to create the ultimate rainbow ping pong ball explosions!

2026-07-04 21:38:42 +0000 UTC→2026-07-04 21:53:35 +0000 UTC(14m)