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Archive for the ‘electronics’ category: Page 4

Sep 2, 2022

Researchers Just Wirelessly Transmitted Power Over 98 Feet of Thin Air

Posted by in categories: electronics, mobile phones

We could one day charge our phones and tablets wirelessly through the air, thanks to newly developed technology.

Researchers have used infrared laser light to transmit 400mW of light power over distances of up to 30 meters (98 feet). That’s enough juice to charge small sensors, though in time it could be developed to charge up larger devices such as smartphones too.

All this is done in a way which is perfectly safe – the laser falls back to a low power mode when not in use.

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Sep 1, 2022

Developing power-over-fiber communications cable: When total isolation is a good thing

Posted by in categories: electronics, energy

Circa 2012 face_with_colon_three


(PhysOrg.com) — Sometimes total electrical isolation is a good thing — and that’s the idea behind a power-over-fiber (PoF) communications cable being developed by engineers at Sandia National Laboratories.

It’s common to isolate communications between systems or devices by using fiber optic cables, said Steve Sanderson of Sandia’s mobility analysis and technical assessment division. But when power also is required, sending it down a copper wire can at times be a safety issue, and substituting it with battery power may not be suitable or practical, he said.

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Sep 1, 2022

China’s top chipmaker SMIC just achieved an Intel-like breakthrough

Posted by in categories: electronics, innovation

Aug 31, 2022

Researchers use infrared light to wirelessly transmit power over 30 meters

Posted by in categories: electronics, mobile phones

We might be too close to wirelessly charging our mobile devices anywhere.

Researchers from Sejong University have developed a new system to transmit power over 30 meters using infrared light wirelessly. During laboratory tests, researchers demonstrated that the new system could transfer 400 mW of light power. For now, this amount of power is enough for charging sensors; however, further progress could mean enough high levels to charge mobile phones in various public places.

The research has been published in Optics Express.

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Aug 31, 2022

Starlink suffered a global outage overnight

Posted by in categories: electronics, internet

Starlink TV went down for users across the global from about 3AM ET to 7AM ET with the service still suffering from speed degradations.

Aug 27, 2022

Nanogap Electrodes towards Solid State Single‐Molecule Transistors

Posted by in categories: computing, electronics

Circa 2015 face_with_colon_three


Molecular Electronics: Nanogap Electrodes towards Solid State Single-Molecule Transistors (Small 46/2015)

Ajuan Cui, Huanli Dong, Wenping Hu.

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Aug 26, 2022

#eNeuro: Researchers at University of Washington reveal a novel mode of regulating Cav2.1 channels by high-affinity Ca2+ sensor protein Syt-7 through direct interaction with Cav2.1 channels at their ‘synprint’ site

Posted by in category: electronics

Aug 26, 2022

Please, Lego, let this engineer bring your computer brick to life

Posted by in categories: computing, electronics

James Brown has brilliantly brought classic Lego computer bricks to life by outfitting them with a tiny OLED screen, processor, battery contacts and more.

Aug 22, 2022

It could take 20 more years for scientists to truly understand color

Posted by in category: electronics

Our current color theory has been wrong for 100 years, and getting it right could have huge implications for electronics, textiles, paints, and even the planet,…

Aug 20, 2022

Computer made from liquid crystals would ripple with calculations

Posted by in categories: computing, electronics

Liquid crystals consist of rod-shaped molecules that slosh around like a fluid, and in those that are nematic the molecules are mostly parallel to each other. For devices like TV screens, the odd molecule that faces the wrong way has to be removed during the manufacturing process, but these defects are key for building a liquid crystal computer, says Kos.

In ordinary computers, information is stored as a series of bits, electronic versions of 1s and 0s. In Kos and Dunkel’s liquid crystal computer, the information would instead be translated into a series of defective orientations. A liquid crystal defect could encode a different value for every different degree of misalignment with other molecules.

Electric fields could then be used to manipulate the molecules to perform basic calculations, similar to how simple circuits called logic gates work in an ordinary computer. Calculations on the proposed computer would appear as ripples spreading through the liquid.

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