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Mark Rober & Science Bob fill Jimmy’s office with Elephant Toothpaste while he’s on vacation! | Jimmy Kimmel Live
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138K views · 34 reactions | NEW Hot Ones alert! Mark Rober is a NASA engineer-turned-YouTube juggernaut whose videos range from building the world's largest Super Soaker, to the annual porch-pirate glitter-bomb holiday extravaganza ✨ (His newest project — Mark Rober’s Revengineers — is coming soon to the Discovery Channel!) …but how is he with spicy food? Can he successfully use science to escape the heat? Find out NOW: https://youtu.be/CJbP71RI-V4  | First We Feast | Facebook
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