Start a Fire like the Iceman / Mr. Denjiro's Happy Energy! #789
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Stone on Stone: Starting a Fire / Mr. Denjiro's Happy Energy! #796
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How do Electron Microscopes Work? 🔬🛠🔬 Taking Pictures of Atoms
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I bought video game cooking appliances
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I made maps that show time instead of space
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Throwing Shuriken! / Mr. Denjiro's Happy Energy! #808
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Lego Gravity Power: Turning Falling Weights Into Electricity!
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A Whip Moves Faster than the Speed of Sound?! / Mr. Denjiro's Happy Energy! #743
12:05