A team of researchers at the University of California, Berkeley, has found a new way to measure gravity—by noting differences in atoms in a superposition state, suspended in the air by lasers. In their paper published in ...
It happens several times a week. Sometimes it is only short flashes of light that appear on the surface of the moon. Other light phenomena on the Earth's satellite can last longer. And sometimes there are also places that ...
Space Exploration
May 31, 2019
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478
Ultrashort flashes of light lasting less than a quadrillionth of a second are fast growing in technological importance. In laser sources, pairs and groups of light flashes can be created instead of individual flashes. Similar ...
Optics & Photonics
Nov 1, 2021
0
2094
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole behind. For a long time, scientists have suspected that the liberated ...
Optics & Photonics
Sep 16, 2017
1
492
Forget high-speed cameras capturing 100 000 images per second. A research group at Lund University in Sweden has developed a camera that can film at a rate equivalent to five trillion images per second, or events as short ...
Optics & Photonics
Apr 28, 2017
0
134
A team of researchers from Denmark, Norway, Spain and Italy has found that both terrestrial gamma-ray flashes and ionospheric ultraviolet emissions are spurred by lightning. In their paper published in the journal Science, ...
Siemens researchers have developed the world’s fastest LED stroboscopic lamp for the purposes of quality control.
Engineering
Feb 3, 2010
0
0
(Phys.org)—Tanya Zelevinsky's Pupin Hall lab is home to a sprawling contraption of gangly wires, metal pipes and chambers, and flashing lights. Inside a container that opens up like a porthole is a glowing blue dot—a ...
General Physics
Dec 19, 2012
2
0
You might not really be sure you saw what you think you saw when the first one shows up. But you stare in the direction of the flicker of light and there it is again—the first firefly of the evening. If you are in good ...
Plants & Animals
Jul 23, 2019
0
6
Anybody who has ever tried to photograph lightning knows that it takes patience and special camera equipment. Now, a new study is using those brief but brilliant flashes to illuminate cloud structures and shed light on storm ...
Earth Sciences
Sep 13, 2019
1
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