Month: May 2008

Simple wireless transmitter

Simple wireless transmitter

It takes just a few common components to build a simple wireless transmitter circuit like this one. The signal it produces can be picked up my AM radios within a few meters proximity. Experiment with different components, morse keyers, or even antennae design – classic electronics fun. – Wireless demo project [via] Related: HOW TO: […]

Wire-wrap floral socket

Wire-wrap floral socket

Lenore shares a clever tip from the vaults of evil mad science – What can you do with old wire-wrap sockets? Turn them into frogs. Flower frogs, that is, which are used for holding flower stems at a particular angle without the support of a vase edge to lean on. Lovely, conservational, charming even – […]

Three-panel analog meter clock

Three-panel analog meter clock

We’ve blogged about analog meter clocks before. This one uses three meters (for hours, minutes, and seconds) and is powered by Adafruit Arduino and an Ethernet Shield. A month or so ago, a friend of mine introduced me to the Arduino Board. It’s an open-source electronics prototyping platform based on a simple microcontroller. Add various […]

Robot muffin man

Two Industrial Electrical Technician students built this automated muffin-making machine. The video captions are in French and there are no details about the construction, but it’s still kind of cool to watch. Machine à Muffins Automatisée [via]

Conquer jet lag with a 16-hour fast

There was an interview with Clifford Saper, a professor of Neurology and Neuroscience at Harvard Medical School, in last week’s Science Friday. The discussion was about a study which was just published in the journal Science about a second circadian clock in mammals that is driven by food availability. The research suggests that this second […]