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2442 topics in this forum

  1. Air Trecks 1 2 3 4 8

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  2. Tesla Coil 1 2 3 4 5

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  3. Battery-free flash light 1 2 3 4

    • 87 replies
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  4. Solar Thermal Rocket 1 2 3 4

    • 84 replies
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  5. Helium car tires 1 2 3 4

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  6. Battleship revival? 1 2 3

    • 74 replies
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  7. Rods of God 1 2 3

    • 73 replies
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  8. Movement of a piston 1 2 3

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  9. Viability of Solar Power 1 2 3

    • 62 replies
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