But then he realized he didn't like water. His fish, however, do. One problem: The pump for the well that supplies water to his home runs even when the pressure fails to build up, posing the risk of pumping the well dry. To guarantee a steady water supply, Steve designed a control device that shuts down the pump under extreme low pressure.
Other supplies: Solenoid-operated gate valve, 10 ft of 12 gauge wire
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. Email Design News (firstname.lastname@example.org) with 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 upt to $500 and will be featured in an upcoming edition of Design News.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
Neil Fromer is the executive director of the Resnick Institute, a program for energy and sustainability at the California Institute of Technology, working to develop new ideas and research technologies related to providing a sustainable future. He spoke to us about the severity of the current drought in California and how solar energy can help prevent such situations in the future.
From home enthusiasts to workers on the manufacturing floor, everyone's imagination is captured by the potential of 3D printing. Prototyping, spare parts creation, art delivery, human organ creation, and even mass product production are all being targeted as current and potential uses for the technology.
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.