University of Chicago physicists have succeeding in creating a vortex knot—a feat akin to tying a smoke ring into a knot.


Rapid prototyping, bubble patterns, smoke rings, turbulence, 3D and slow-motion video… this looks like fun research. But I don’t understand the science at all.

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LaserOrigami Uses a Laser Cutter to Create 3D Objects Faster than 3D Printers | Inhabitat – Sustainable Design Innovation, Eco Architecture, Green Building.

Pretty clever. They defocus the laser to heat up the plastic, which then bends (by gravity). Many, many times faster than standard rapid prototyping.

Also has a pen tool for marking cuts by hand.

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