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27:06
Making the World's Smallest Beam Stirling Engine
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18:50
Making a Tiny Orrery
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16:30
Cut any gear with just a slitting saw
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17:37
La science des balles
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23:40
Cette copie chinoise de machine à vapeur DIY peut-elle être meilleure qu'une Wilesco ?
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31:59
I Make This Tiny 2-Stroke Engine From Scratch
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20:23
1890-1900 Atlas Automatic Steam Engine Part 5 Evaluation Begins
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27:41