Mark Rober's CrunchLabs — Season 3 Episode 3

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S03E03

Building a Liquid Sand Hot Tub

16 Mar 26 10 menit

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.

FamilyDocumentary

Episode

S03E01 16 Mar 26 24m 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.
S03E02 16 Mar 26 18m 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.
S03E03 16 Mar 26 10m Sedang diputar 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.
S03E04 16 Mar 26 24m 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.
S03E05 16 Mar 26 22m 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.
S03E06 16 Mar 26 9m Glitter Bomb 1.0 vs Porch Pirates Stolen packages? Not so fast. Mark builds the original "Glitter Bomb" trap to combat porch pirates-and really make them regret their life choices.
S03E07 16 Mar 26 14m Engineers vs Food Robots From cereal and milk to spaghetti and meatballs: Things get messy when the CrunchLabs team cooks up new ways to make Mark's mealtimes more efficient.
S03E08 16 Mar 26 9m Mark Rober vs Ninja Kidz It's not just the Ninja Kidz - it's the whole Ninja Fam! And Mark's challenging them all to a silly series of "Minute to Win It" style challenges.
S03E09 16 Mar 26 11m Engineers vs Custom Go Kart Racing CrunchLabs product designers get 24 hours to build and race their own custom go-karts incorporating engineering know-how-and the element of surprise.