Pulse Tube Cryocooler - Part 2 (-75C)
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Pulse Tube Cryocooler (Part 3)
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Pulse Tube Cryocooler - Part 1
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Building a Vortex Tube
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Make This Super Tiny Steam Engine From Scratch
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Submarine Kayak - Part 1
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I Made A Rotary Vane Engine Prototype
26:42