Can You 3D Print a DC Motor?
The answer to this question? Kinda. It definitely shows real promise, even for the home 3D printer.
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experiments
Experimenting with Turning an Ultrasonic Cleaner into an Ultrasonic Knife
Follow along as a curious maker tries to turn an ultrasonic cleaner into an ultrasonic cutting knife.
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E-Paper Hacking with Ben Krasnow
Exploring the latest generation of e-paper, how it works, and how you can program and hack the display.
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Experimenting with Piping Cement to Make Decorative Objects
Peter and Patricia Brown play around with the piping bag technique to try and make some usable objects.
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Learn to Cryogenically Harden Metal with an Induction Heater
Cryogenic case hardening is a good way to increase the hardness and rust resistance of bolts.
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Why hot sauce cleans pennies
I was thoroughly entertained by this bit of hobby chemical sleuthing from Michael August Pusateri, who observed years ago, while bored on-shift, that the hot sauce at the fast food joint where he was working would clean the oxide off a penny. My immediate assumption–that the effect is due to vinegar or some other acid in the sauce–turns out to be only half right. The right answer, and the process by which Michael arrived at and verified it, make for interesting reading. You might even find a use for it.
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Explosive drop of glass
Awesome science, beautiful imagery – If you want a scientific display of the dangers of pent-up stress, Prince Rupert’s drops are it. After the trauma of being dropped molten-hot into a bucket of cold water, these glass balls, named for a 17th-century amateur scientist, turn into bundles of high tension. They’re impervious to even the […]
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