Build an Archimedes screw!  Then learn about Archimedes claw and heat ray and build those too(0;  And of course, the Myth Busters episode of the Heat Ray!!!

Build an Archimedes screw! Then learn about Archimedes claw and heat ray and build those too(0; And of course, the Myth Busters episode of the Heat Ray!!!

Color Block Black and White Midi Fit and Flare Dress Sale On Lulugal.com, Just $27! Shop Now. Full Sizes For You.

Color Block Black and White Midi Fit and Flare Dress Sale On Lulugal.com, Just $27! Shop Now. Full Sizes For You.

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