A newly developed experimental set-up allows the X-ray structure determination of biomolecules such as proteins with far smaller samples and shorter exposure times than before. At so-called synchrotron sources, protein crystal ...
General Physics
Nov 3, 2017
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15
(Phys.org) -- Polarized light is a familiar phenomenon, as people who prefer polarized sunglasses can testify. The electric field in a beam of light can vibrate either left-right or up-down, and the scattering or reflection ...
Astronomy
Apr 9, 2012
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Electromagnetic radiation is pervasive. It comes in many forms, including radio waves, microwaves and high-energy X-rays and gamma rays. But what, precisely, is it?
Optics & Photonics
Mar 8, 2018
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19
Anna Llordés, a chemist at Lawrence Berkeley National Laboratory's Molecular Foundry, looks for simple, inexpensive ways to make "smart" materials that save or store energy. One way she and her colleagues do this is by combining ...
Nanophysics
Dec 13, 2013
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Airline travelers are used to being instructed to turn off computers and cell phones during takeoffs and landings as a precaution against interfering with the plane’s navigational equipment, but outside sources of high-energy ...
Engineering
Aug 26, 2009
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Terahertz radiation can be used for a wide variety of applications and is used today for airport security checks just as much as it is for material analysis in the lab. The wavelength of this radiation is in the millimetre ...
Optics & Photonics
Jul 11, 2018
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89
Lasers play roles in many manufacturing processes, from welding car parts to crafting engine components with 3D printers. To control these tasks, manufacturers must ensure that their lasers fire at the correct power.
Optics & Photonics
Sep 18, 2018
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40
This ghostly image shows what can happen when an interstellar cloud passes too close to a star. Barnard's Merope Nebula, also known as IC 349, is a cloud of interstellar gas and dust traveling through the Pleiades star cluster ...
Astronomy
Oct 28, 2019
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41
Wim Leemans of Berkeley Lab's Accelerator and Fusion Research Division heads LOASIS, the Laser and Optical Accelerator Systems Integrated Studies, an oasis indeed for students pursuing graduate studies in laser plasma acceleration ...
General Physics
Oct 24, 2012
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0
A jet of X-rays from a supermassive black hole 12.4 billion light years from Earth has been detected by NASA's Chandra X-ray Observatory. This is the most distant X-ray jet ever observed and gives astronomers a glimpse into ...
Astronomy
Nov 28, 2012
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