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.
By experimenting with the photovoltaic reaction in solar cells, researchers at MIT have made a breakthrough in energy efficiency that significantly pushes the boundaries of current commercial cells on the market.
We looked at a number of sources to determine this year's greenest cars, from KBB to automotive trade magazines to environmental organizations. These 14 cars emerged as being great at either stretching fuel or reducing carbon footprint.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is