Sciences & Technology
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Sciences & Technology
Veille sur les évolutions des sciences et des technologies
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Rescooped by Terheck from 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)...
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NASA’s tiny 460GHz vacuum transistor that could one day replace silicon FETs | Nano Technology

NASA’s tiny 460GHz vacuum transistor that could one day replace silicon FETs | Nano Technology | Sciences & Technology | Scoop.it
Way back in the salad days of digital computing (the 1940s and '50s), computers were made of vacuum tubes -- big, hot, clunky devices that, when you got right down to it, were essentially glorified light bulbs. This is why early computers like the ENIAC weighed more than 27 tons and consumed more power than a small town. Later, obviously, vacuum tubes would be replaced by probably the greatest invention of all time -- the solid-state transistor -- which would allow for the creation of smaller, faster, cheaper, and more reliable computers. Fast forward to 2014, though, and the humble CMOS field-effect transistor (FET) is starting to show its age. We've pretty much hit the limit on shrinking silicon transistors any further, and they can't operate at speeds much faster than a few gigahertz. Which is why NASA's Ames Research Center is going back to the future with its new vacuum transistor -- a nanometer-scale vacuum tube that, in early testing, has reached speeds of up to 460GHz.

Via Gust MEES
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Diane Johnson's curator insight, June 25, 2014 12:13 PM

Great engineering connections!

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How Researchers Map The Future Of Innovation

How Researchers Map The Future Of Innovation | Sciences & Technology | Scoop.it
The head of Microsoft Research Peter Lee on how the trials and tribulations of artificial intelligence demonstrate how researchers create the future.
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Library@NYP's curator insight, October 26, 2013 12:10 PM

Today's technological world can be credited to the many innovations which researchers took many  years to  develop - be it smartphones, tablets,  sensors, 3D gaming, wireless networks, and so on. In this interesting article, you can learn about the Four Quadrant model of technological research that many organizations have used in their innovations and research journey.

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Big Breakthrough May Bring Night-Vision Contact Lenses

Big Breakthrough May Bring Night-Vision Contact Lenses | Sciences & Technology | Scoop.it

"Those night-vision devices used by hunters and soldiers may soon get a lot smaller -- small enough, in fact, to be built right in to contact lenses.

That's the word from University of Michigan researchers, who say they've created the first-ever full-spectrum infrared light detector that works at room temperature. Conventional night-vision devices require bulky built-in cooling units to work properly..."

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