How powerful can it be to propel a car with carbon dioxide? Plus a crash simulation experiment!

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I set fire to my house...

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Homemade fast roller skates started with an electric screwdriver!

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Creative cardboard helicopter, can really fly!

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The car runs over a large bag of SpongeBob SquarePants, the scene is spectacular

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genius handyman invention

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Build a Mercedes Vision AVTR Future Car for My Son in 100 Days

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【Handmade】Modified Super Speed Bike!

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Isn't this a perpetual motion machine?

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Dino Dino Give My Lollipop | Kids Song

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Jannie Teaches Ellie How to Swim in the Kids Pool and Plays with Fun Water Toys

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new ship equipment

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I heard that people who walk with their feet turned inside out are cuter.

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Stupid advertisement: I want you to be my husband, but you want to be my dad

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Fun LEGO experiment - what does a gear look like under a microscope?

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Don't throw away the waste paper box, make a candy vending machine, the feeling of self-help is good

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