I Tested the World’s Loudest Whistle

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This is the world's loudest whistle! Watch Crazy Science Experiments You Can Do at Home! ▸

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#shortsI tested the world's best Japanese chalk called Hagoromo chalk. Watch level 1 to 1000 science experiments▸

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🎬 WATCH MORE VIDEOS
Superhero Gadgets You Won't Believe Exist... (ft. Hacksmith)
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Level 1 to 100 Science Gadgets
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Level 1 to 100 Lego Builds
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Level 1 to 100 Science Experiments
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Level 1 to 100 Impossible Puzzles
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