Fido's out of the doghouse now, thanks to Larry's automatic mail delivery notification system. When the postman opens the lid of Larry's mailbox, a photodetector mounted inside the mailbox activates a light-emitting diode inside the house, notifying him that mail has arrived. A special latch circuit ensures that the LED stays lit after the lid shuts, and a pushbutton allows Larry to reset the circuit after retrieving his mail.
Are you a Gadget Freak? Allied Electronics would like to send you on a shopping spree of up to $500 on its website at www.alliedelec.com/gf.asp. Email Design News your proposed project (must incorporate electronic components and involve sensing, motion, timing, and/or networking elements) to email@example.com, along with a description of how it works, and a parts list. If your project is selected, you'll receive the shopping trip of up to $500 and be featured in an upcoming edition of Design News.
The Dutch are known for their love of bicycling, and they’ve also long been early adopters of green-energy and smart-city technologies. So it seems fitting that a town in which painter Vincent van Gogh once lived has given him a very Dutch-like tribute -- a bike path lit by a special smart paint in the style of the artist's “Starry Night” painting.
For decades, engineers have worked to combat erosion by developing high-strength alloys, composites, and surface coatings. However, in a new paper, a team at Jilin University in China turned to one of the most deadly animals in the world for inspiration -- the yellow fat-backed scorpion.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.