Four billion years ago, our then stripling sun radiated only 70 to 75 percent as much energy as it does today. Other things on Earth being equal, with so little energy reaching the planet's surface, all water on the planet ...
Earth Sciences
Apr 6, 2010
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Omer Tanovic, a Ph.D. candidate in the Department of Electrical Engineering and Computer Science, joined the Laboratory for Information and Decision Systems (LIDS) because he loves studying theory and turning research questions ...
Engineering
Jul 4, 2019
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Fujitsu Laboratories today announced that, using carbon nanotubes as heat-dissipation material in amplifier transistors, Fujitsu has become the first to achieve the successful operation of high-frequency, high-power (100W-class) ...
Electronics & Semiconductors
Dec 11, 2009
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Fujitsu Laboratories today announced the development of a power supply unit for servers that features a 2.3 kW power output and achieves a world-leading conversion efficiency rate of 98.4%.
Hardware
Apr 5, 2012
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0
Researchers have nearly doubled the continuous output power of a type of laser, called a terahertz quantum cascade laser, with potential applications in medical imaging, airport security and more. Increasing the continuous ...
Optics & Photonics
Jul 26, 2016
1
67
(PhysOrg.com) -- While the laws of physics weren't made to be broken, sometimes they need revision. A major current law has been rewritten thanks to the three-port transistor laser, developed by Milton Feng and Nick Holonyak ...
General Physics
May 12, 2010
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With energy conservation expected to play a growing role in managing global demand, materials and methods that make better use of existing sources of energy have become increasingly important.
Condensed Matter
Nov 14, 2016
5
37
The ability to harness light into an intense beam of monochromatic radiation in a laser has revolutionized the way we live and work for more than fifty years. Among its many applications are ultrafast and high-capacity data ...
Optics & Photonics
Apr 27, 2018
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430
Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers. They are often used in long-distance communication fiber optic cables and fiber-based lasers. Invented ...
Optics & Photonics
Jun 16, 2022
0
183
Jupiter's Io stands apart from the solar system's other moons, with its numerous volcanoes and its surface dominated by lava flows. Io's surface volcanism was confirmed in 1979 when the Voyager spacecraft imaged it, but its ...
Planetary Sciences
Oct 26, 2023
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