The Falcon Heavy payload fairing goes blue (da ba dee, da ba daa).
Category: electronics – Page 71
Engineers report a new low-power lighting technology
Researchers from the Moscow Institute of Physics and Technology and Lebedev Physical Institute of the Russian Academy of Sciences have designed and tested a prototype cathodoluminescent lamp for general lighting. The new lamp, which relies on the phenomenon of field emission, is more reliable, durable, and luminous than its analogues available worldwide. The development was reported in the Journal of Vacuum Science & Technology B.
While LED lamps have become commonplace, they are not the only clean and power-saving alternative to incandescent lamps. Since the 1980s, engineers around the world have been looking into the so-called cathodoluminescent lamps as another option for general lighting purposes.
Shown in figure 1, a lamp of this kind relies on the same principle that powered TV cathode-ray tubes: A negatively charged electrode, or cathode, at one end of a vacuum tube serves as an electron gun. A potential difference of up to 10 kilovolts accelerates the emitted electrons toward a flat positively charged phosphor-coated electrode—the anode—at the opposite end of the tube. This electron bombardment results in light.
New technique makes it possible to see around corners
Computer vision researchers report using special light sources and sensors to see around corners or through gauzy filters, letting them reconstruct the shapes of unseen objects.
Introducing Bio Well Camera GDV Camera GDV BIO Well Camera GDV
The 21st Century version of the Kirlian camera is now called a GDV camera.
Application de l’effet Kirlian — Méthode GDV du Professeur Konstantin KOROTKOV
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How To Catch A Neutrino
Francis Halzen, the lead scientist of the IceCube Neutrino Detector, explains how light sensors buried deep in the ice at the South Pole detected a neutrino that traveled four billion light-years.
Time Crystals: A New Form Of Matter That Could Change Everything
Of all the science-fiction-sounding names that have come to fruition in recent years, perhaps none is as mysterious or seemingly fictitious as time crystals. The name evokes something between Back to the Future and Donnie Darko, and the reality is perhaps crazier than either.
Two separate groups of scientists recently reported that they observed time crystals, which lends credence to the idea that this theoretical state of matter is something humans can actually create and observe. And indeed, time crystals can be grown in a child’s bedroom.
However, it requires nuclear sensors and lasers to help time crystals reach their full potential and then measure and observe them. This combination of dramatic scientific terms and shockingly simple objects is a great analogy for time crystals as a whole.
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