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Just thought I’d leave this here.

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  1. OMG a gun in a classroom! It was funny to see the kind of things that can be done with a fog gun. 🙂

  2. Gotta love live demos of science and physics.

    Some of the very best teachers know expertly how to ‘perform’ for their students to grab their attention and inspire them to actually *want* to learn the material.

    Unfortunately, those very skills usually pay much better in the private sector.

    Usually in sales or as professional trainers.

    As for guns, I’ll leave this instructional here (stolen from a followup link in that video above) on making gunpowder:

    “Gunpowder From Urine, Part 1”

  3. I heard the plasma cannon works on the same principle, firing toroids of plasma with an EM/acoustic push like the beating of that drum. And now to make a plasma rifle…


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