News tagged with vacuum tube

The Ultimate Long Distance Communication

Anyone who's vacationed in the mountains or lived on a farm knows that it's hard to get good internet access or a strong cell phone signal in a remote area. Communicating across great distances has always ...

dateAug 19, 2009 in Space Exploration
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New way to generate terahertz radiation

(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 ...

dateJul 11, 2012 in General Physics
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Using Nanotubes in Computer Chips

(PhysOrg.com) -- MIT materials scientists have developed a new technique for growing carbon nanotubes that could replace the vertical wires in chips, permitting denser packing of circuits.

dateSep 10, 2009 in Nanomaterials
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Teeny-tiny X-ray vision

The tubes that power X-ray machines are shrinking, improving the clarity and detail of their Superman-like vision. A team of nanomaterial scientists, medical physicists, and cancer biologists at the University of North Carolina ...

dateJul 28, 2009 in Nanomaterials
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Return of the vacuum tube

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 ...

dateMay 18, 2012 in General Physics
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Crashing the size barrier

Like surfers on monster waves, electrons can ride waves of plasma to very high energies in a very short distance. Scientists have proven that plasma acceleration works. Now they're developing it as a way to ...

dateNov 18, 2009 in General Physics
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