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Don't think you can build a jet engine at home? Here's a simple jet engine — a pulsejet — that you can make out of a jam jar in an afternoon.

Sep 30, 2022 · The jam jar jet will cycle, pulse, and buzz, running at a low but audible frequency of about 20Hz, depending on conditions in the jar and in the surrounding ...

Dec 17, 2003 · 1. Get a pint sized mason jar, or a glass jar that used to contain jelly or jam (thus the name 'jam jar'). 2. Drill a 0.5 inch (13mm) hole in the center of the ...

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Here's a simple jet engine — a pulsejet — that you can make out of a jam jar in an afternoon. All it takes is bending some wire and punching a few holes ...