News tagged with vacuum tube

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Part 1: From Linacs to Lasers: Accelerators and Light Sources of Tomorrow

Accelerators and Light Sources of Tomorrow (Part 1: From Linacs to Lasers)

Physics / General Physics

created Dec 22, 2009 | popularity 4.7 / 5 (6) | comments 2

From their humble beginnings as offshoots of the ordinary electric light bulb, particle accelerators have evolved in surprising directions. Among the most productive and promising developments have been light ...


Crashing the size barrier

Crashing the size barrier

Physics / General Physics

created Nov 18, 2009 | popularity 4.5 / 5 (15) | comments 6

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 ...


New AFOSR magnetron may help defeat enemy electronics

New AFOSR magnetron may help defeat enemy electronics

Technology / Engineering

created Sep 16, 2009 | popularity 5 / 5 (3) | comments 0

Researchers funded by the Air Force Office of Scientific Research at the University of Michigan invented a new type of magnetron that may be used to defeat enemy electronics. A magnetron is type of vacuum ...


The Ultimate Long Distance Communication

The Ultimate Long Distance Communication

Space & Earth / Space Exploration

created Aug 19, 2009 | popularity 4.5 / 5 (20) | comments 11

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 ...


Teeny-tiny X-ray vision

Nanotechnology / Nanomaterials

created Jul 28, 2009 | popularity 5 / 5 (4) | comments 0

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 ...


Physicist takes a quantum leap

Physics / Quantum Physics

created Jul 06, 2009 | popularity 4.2 / 5 (6) | comments 2

(PhysOrg.com) -- A University of Queensland physicist is seeking answers to a persistent problem throughout human history: how do I compute things? None, however, have had the same impact as what we today know as simply the ...