All winter long, Robert basks in tropical temperatures right at home in upstate New York—thanks to an ignition timer system he designed for his ancient (1928) but efficient hot water boiler. At startup, the timer keeps the ignition on for 90 seconds while the burner comes to temperature. Tolerant of line noise and sags, it's designed to restart in the event of a line interruption longer than one second. Click here for details.
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. E-mail Design News (email@example.com) your proposed project (must incorporate electronic components and involve sensing, motion, timing, and/or networking elements), along with a description of how it works, and a parts list.
If your project is selected, you'll receive the shopping spree of up to $500 and will be featured in an upcoming edition of Design News.
Researchers have been working on a number of alternative chemistries to lithium-ion for next-gen batteries, silicon-air among them. However, while the technology has been viewed as promising and cost-effective, to date researchers haven’t managed to develop a battery of this chemistry with a viable running time -- until now.
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.