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Clever… use a marble.

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.


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Comments

  1. BigD145 says:

    I’ve seen many a marble with air bubbles and impurities. I would not toss one in the oven.

  2. jammit says:

    I thought that was pretty clever, until BigD145 mentioned the air bubble thing. I’m sure a ball bearing would be safer and probably as cheap. I suppose if a person really wanted to use a glass marble, it might be a pretty good idea to bake the marbles in a safe container first to determine if any will fail.

  3. Anonymous says:

    Marbles are formed at the melting point of glass. The air bubbles should be a partial vacuum, and be incapable of overpressure below 1400F. That said, I still wouldn’t toss them in the oven either.

  4. BigD145 says:

    A crumpled ball of cupcake paper should do the same job. Or maybe use some tin foil.

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