This circuit is commonly credited to Japanese multimedia artist Tetsuo Kogawa. It takes audio input through a 1/4″ phono jack and, constructed as shown, without the optional antenna connections, will broadcast an FM radio signal about 30 feet. This is the standard model of Mr. Kogawa’s simplest FM transmitter, which is slightly more complex than […]
This project is derived from LifeHacker alum Jason Fitzpatrick’s improvised clean/dirty dishes indicator, which uses the same CD + suction cup idea. When I tried Jason’s trick for myself, however, I found that, while the hole in an optical disc does fit nicely over the hub of a hardware-store suction cup, all the cups I […]
By Sean M. Montgomery and Ira M. Laefsky Excerpted from a Primer on Biosensing in MAKE Volume 26. When you experience an arousing stimulus, like an evocative question, a startling noise, or even a disturbing thought, your body generates a variety of psychophysical responses. One of these is micro-pulses of sweat released after a 1- […]
It’s rare to get very low temperatures where I live, but last winter the temperature was low enough to freeze and burst pipes. After thawing my pipes, I needed outdoor faucet covers fast, but the hardware store was sold out. With an empty drink mix container as the base, I was able to make comparable […]
With a few easy steps build a trip wire!
I have a bunch of great logo tee-shirts but they’re cut for men and I don’t like the way they fit, so today I’m going to show you how to mod your t-shirts into a flattering shape that you’ll actually wear.
Here are 3 simple paper-crafting techniques you can combine and recombine to create gorgeous holiday cards. I’ve used machine sewing, heat embossing, and paper embroidery to make 2 very different sets of greetings. What other variations can you come up with?
