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  • JimFishWizard commented on The Oakland Toy Lab's instructable Giant Wave Model! 5 months ago
    Giant Wave Model!

    Matthew, a Geometry student at Fusion Academy Marin and I originally intended it to hang down from the ceiling, but it was too long, so we mounted it like a hammock and attached a pull cord to one end. Passers-by give it a tug and watch the action.

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  • JimFishWizard commented on loup226's instructable Ghost message egg10 months ago
    Ghost message egg

    This con goes back to alchemical times. To prove it false, peel your hard boiled egg and paint the egg white with your alum solution. It won't change color. For a good article on the topic, go to The Encyclopedia of Egg Magic by Donato Colucci.

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