Archive for the ‘electronics’ category: Page 17

Jul 4, 2019

SpaceX camera captures incredible view of rocket part returning to Earth

Posted by in categories: electronics, space travel

The Falcon Heavy payload fairing goes blue (da ba dee, da ba daa).

Jun 28, 2019

Engineers report a new low-power lighting technology

Posted by in categories: electronics, energy

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 . 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 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.

Jun 27, 2019

Balanced single-pixel camera with noiselet sampling

Posted by in category: electronics

Is your television watching you?

Single-pixel cameras (SPC) are image capturing devices, which use only a single detector to collect information about the entire image, by making use of it.

Jun 20, 2019

New technique makes it possible to see around corners

Posted by in category: electronics

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.

Jun 14, 2019

Introducing Bio Well Camera GDV Camera GDV BIO Well Camera GDV

Posted by in category: electronics

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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Jun 10, 2019

The Emerging World of Touchless Biosensors

Posted by in categories: electronics, wearables

Biosensors can also be sprayed.

A new touchless world of biosensing is emerging, and its implications are unequivocal. What does this mean for wearables, telehealth, and research?

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Jun 8, 2019

Rare ‘rainbow’ blanket octopuses caught on camera

Posted by in category: electronics

Click on photo to start video.

Rare, “rainbow” blanket octopuses were caught on camera off the coast of Romblon, Philippines.

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Jun 2, 2019

Smart pedestrian crossing system forgoes buttons for cameras

Posted by in categories: computing, electronics

Starting at the end of next year, some of Vienna’s walk-light push-buttons will be disappearing from the city’s pedestrian crossings. Instead, a new system will be trialled, that uses cameras and computers to visually detect when people wish to cross the road.

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May 17, 2019

How To Catch A Neutrino

Posted by in categories: electronics, particle physics

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.

May 13, 2019

Time Crystals: A New Form Of Matter That Could Change Everything

Posted by in category: electronics

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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