The savory aromas of roasting hot dogs and chicken kebabs wafted out of metal and glass vacuum tubes heated by mirrors curved to capture the sun's heat.
Energy & Green Tech
Aug 7, 2018
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(Phys.org)—Although vacuum tubes were the basic components of early electronic devices, by the 1970s they were almost entirely replaced by semiconductor transistors. But in the past few years, researchers have been developing ...
For years, vacuum tubing technology has allowed maple syrup producers to draw more sap from trees, but such systems are prone to leaks caused by falling branches or hungry critters chewing on lines.
Engineering
Apr 1, 2014
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The submillimeter wave, or terahertz, part of the electromagnetic spectrum falls between the frequencies of 0.3 and 3 terahertz, between microwaves and infrared light. Historically, device physics has prevented traditional ...
General Physics
Nov 22, 2013
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(Phys.org) —Two researchers from Japan's Synchrotron Radiation Research Institute have found evidence that bees share a wing muscle contraction mechanism with vertebrates by using X-rays and high speed cameras. In their ...
DARPA-funded researchers recently demonstrated the world's smallest vacuum pumps. This breakthrough technology may create new national security applications for electronics and sensors that require a vacuum: highly sensitive ...
Engineering
Jun 5, 2013
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When Charles Babbage prototyped the first computing machine in the 19th century, he imagined using mechanical gears and latches to control information. ENIAC, the first modern computer developed in the 1940s, used vacuum ...
Cell & Microbiology
Mar 28, 2013
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(Phys.org) —A University of California, Riverside Bourns College of Engineering professor and a team of researchers published a paper today that show how they solved an almost century-old problem that could further help ...
Nanophysics
Mar 7, 2013
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(Phys.org) -- Cornell researchers have developed a new method of generating terahertz signals on an inexpensive silicon chip, offering possible applications in medical imaging, security scanning and wireless data transfer.
General Physics
Jul 11, 2012
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Vacuum tubes have been retro for decades. They almost completely disappeared from the electronics scene when consumers exchanged their old cathode ray tube monitors for flat screen TVs. Their replacement – the semiconductor ...
General Physics
May 18, 2012
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