Sylmar, CA —Flying high above the earth are thousands of satellites providing the necessities of daily communication. With the proliferation of cell phones and the Internet, onboard power requirements have become even more demanding. "We have now created space solar cells with an efficiency up to 29%," says David Lillington, acting President of Spectrolab, a division of Hughes Electronics. "By increasing the absorption from single junction to multi-junction arrays we have been able to dramatically increase the [energy] absorption rates."
Standard solar cell technology relies on a single junction. But since the mid 1990s, Spectrolab has created solar cells with multiple junctions. "By growing 16 layers of gallium arsenide on germanium we have been able to create a triple junction cell with much higher efficiencies," says Lillington up from the current 15%. "By improving on these processes, we expect efficiencies up to 50% in about 10 years from now."
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
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.