Although in development since the 1960s, NASA has recently completed two years of cycling in low earth orbit to prove the sodium sulfur cell's viability for future space missions.
It uses sodium and sulfur as the electrodes, and a solid beta alumina ceramic as the electrolyte. The end result is a battery that produces 150 W-hr/kg on the cell level, and weighs half as much as nickel-hydrogen technology.
Chuck Donet, Air Force Research Laboratory, Space Vehicles Directorate, 3550 Aberdeen Ave. S.E., Kirtland AFB, NM 87117-5776; (505) 846-4899.
Transfers the control of a large number of motion axes from one numerical control kernel to another within a CNC system, using multiple NCKs, and enables implement control schemes for virtually any type of machine tool.
Industrial trade shows, like Design News' upcoming Pacific Design & Manufacturing, deserve proper planning in order to truly get the most out of them as marketing tools. Here's how to plan effectively.
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.