Collaborate Disseminate
[Paul] likes his piano, but he doesn’t know how to play it. The obvious answer: program an Arduino to do it. Some aluminum extrusion and solenoids later, and it was …read more Continue reading Piano Gets an Arduino Implant
As electronics rely more and more on ICs, subtle details about discrete components get lost because we spend less time designing with them. For example, a relay seems like a …read more Continue reading Understanding The Miller Effect
We’ve seen a lot of interest in Meshtastic, the license-free mesh network for small amounts of data over the airwaves. [Ham Radio Rookie] was disappointed with his Meshtastic node’s small …read more Continue reading What the Well-Dressed Radio Hacker is Wearing This Season
If you mention punch cards to most people, they’ll think of voting. If you mention it to most older computer people, they’ll think of punching programs for big computers on …read more Continue reading On the Original Punched Cards
You know the problem. You are ready to melt some metal in your microwave oven, and you don’t have any crucibles. Not to worry. [Shake the Future] will show you …read more Continue reading DIY Microwave Crucibles
The Free Software Foundation is holding an auction to celebrate its 40th anniversary. You can bid on the original sketch of the GNU head by [Etienne Suvasa] and [Richard Stallman’s] …read more Continue reading Your Chance to Get A Head (A Gnu Head, Specifically)
We were surprised when we read a post from C++ creator [Bjarne Stroustrup] that reminded us that C++ is 45 years old. His premise is that C++ is robust and …read more Continue reading C++ is 45 Years Old. [Stroustrup] Says You Still Don’t Get It!
With so many cheap oscilloscopes out there, the market for old units isn’t what it used to be. But if you have a really old scope, like the Heathkit O-10 …read more Continue reading Repairing an Old Heathkit ‘Scope
It seems obvious once you think about it, but if you can spin your cell phone and coordinate the display with the motion, you can create a 3D display. [Action …read more Continue reading Turn Your Phone into a POV Hologram Display
Graphene always sounds exciting, although we aren’t sure what we want to do with it. One of the most promising features of the monolayer carbon structure is that under the …read more Continue reading Who’d Have Guessed? Graphene is Strange!