Month: May 2010

Solid titanium dead drop spike

Solid titanium dead drop spike

Brain Dereu of Hollow Spy Coins has done it again. As if the solid stainless steel version of their original aluminum dead drop spike I recently blogged about weren’t cool enough by itself, the Dereu family is now offering the same product machined in solid freaking titanium. Incredibly, they’re selling it for exactly the same price as the stainless steel version.

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Ultrasonic Arduino tape measure source code

Here’s the source code for my Arduino + PING))) + 7-Segment Shield ultrasonic distance sensor. It is the progenitor of my Arduino Nerf sentry gun code, which I’ll be posting soon.

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VHS generational loss experiment

James over at Cinemassacre undertook to find out how many times you could copy VHS footage before it became completely unwatchable. It’s not exactly a well-controlled experiment: He doesn’t report the equipment he used to do the copying or the kind of tape involved and, somewhat annoyingly, he does not actually report the number of clips he spliced together to make his 3-minute video. Determining at what point the noisy footage is “unwatchable” is also sort of arbitrary. Still, interesting to watch. I personally counted 63 generations before the footage decayed into meaningless audiovisual noise. [Thanks, Billy Baque!]

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RGB wallpaper changes with the color of your light

RGB wallpaper changes with the color of your light

Italian design studio Carnovsky unveiled this concept wallpaper, overprinted with differently-colored complimentary patterns that can be selectively displayed by shining red, green, or blue light on the surface. I think they should add a special super-secret UV-reactive layer, too. [Thanks, Billy Baque!]

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Physical sciences and mechanics month

Physical sciences and mechanics month

The June theme for Make: Online is “Physical Science and Mechanics.” Physical science is a broadly used term that can be applied to the study of any non-living systems and how they interact, from the foundational physical laws of energy, matter, and force to the basic principles of simple machines (lever, pulley, inclined plane, wedge, […]

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Short Circuit: Direct digital synthesizer

I’m glad to see Jeri is back to doing her quick n’ dirty “Short Circuit” videos, where she shoots, edits, and uploads a benchtop tutorial video in record time. Sure they’re funky, but they get their point across. In this video, she shows you how to make a simple audio direct digital synthesizer (DDS) using […]

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