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Today, wireless charging is little more than a gimmick for high-end smartphones or pricey electric toothbrushes. But a new approach that can charge devices anywhere in a room could one day allow untethered factories where machinery is powered without cables. As the number of gadgets we use has steadily grown, so too has the number of cables and chargers cluttering up our living spaces. This has spurred growing interest in wireless charging systems, but the distances they work over are very short, and they still have to be plugged into an outlet. So, ultimately, they make little difference.

This is only a prototype though, and considering the dramatic increase in efficiency between the first and second versions, this efficiency gap could be closed. A more pressing concern might be the cost and complexity of retrofitting buildings with massive aluminum plates in the walls.

Indeed, the researchers are working on both issues. “We’ve just developed a brand-new technique. Now we have to go figure out how to make it practical,” Sample told Scientific American.

Continue reading “This Room Can Wirelessly Charge Devices Anywhere Within Its Walls” | >

Earlier this year, researchers found a deposit of rare-earth minerals off the coast of Japan that could supply the world for centuries, according to a study.

The study, published in the journal Nature in April 2,018 says the deposit contains 16 million tons of the valuable metals.

Rare-earth minerals are used in everything from smartphone batteries to electric vehicles. By definition, these minerals contain one or more of 17 metallic rare-earth elements (for those familiar with the periodic table, those are on the second row from the bottom).

These elements are actually plentiful in layers of the Earth’s crust, but are typically widely dispersed. Because of that, it is rare to find any substantial amount of the elements clumped together as extractable minerals, according to the USGS.

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LOMPOC, Calif. — Rocket Lab announced Sept. 1 that it is expanding production of satellite components to meet demand from companies developing satellite constellations.

The company said it is increasing production of reaction wheels, components used for attitude control of spacecraft. The company started offering those components after acquiring Sinclair Interplanetary, a smallsat component manufacturer, in April 2020.

The new production line will be able to produce up to 2,000 reaction wheels a year. “When we took over Sinclair Interplanetary, on a good year they were doing between 100 and 150 wheels,” Peter Beck, chief executive of Rocket Lab, said in an interview. “Going to a couple of thousand is a serious move up.”

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The cumulative effect of reduced PTPN2 activity on both mechanisms was an elevated fluid loss. The researchers proved this defect could be reversed by treating cells lacking PTPN2 with recombinant -; or synthetic -; matriptase.

A team of researchers led by a biomedical scientist at the University of California, Riverside, has identified a novel mechanism by which loss-of-function mutations in the gene PTPN2, found in many patients with inflammatory bowel disease, or IBD, affect how intestinal epithelial cells maintain a barrier.

The intestinal epithelium, a single layer of cells, plays a critical role in human health by providing a barrier while also allowing nutrient and water absorption. Intestinal epithelial cells are needed for regulating immune function, communicating with the intestinal microbiota, and protecting the gut from pathogen infection -; all of which critically depend on an intact epithelial barrier.

Affecting roughly 3 million Americans, IBD is a set of chronic intestinal diseases in which the lining of the gut becomes inflamed and leaky. Increased gut leakiness has recently been confirmed to increase the risk of developing IBD.

Continue reading “Scientists identify novel mechanism that links genetic defect in IBD patients to gut leakiness” | >

California Institute of Technology (Caltech) has received $100 million in funding for their Space-based Solar Power Project (SSPP), which is developing technology capable of generating solar power in space and beaming it back to Earth.

Caltech describes the project as “collecting solar power in space and transmitting the energy wirelessly to Earth through microwaves enables terrestrial power availability unaffected by weather or time of day. Solar power could be continuously available anywhere on Earth.”

The Space-based Solar Power Project has been underway since at least 2013 when the first donation arrived from Donald and Brigitte Bren. The gift is now being disclosed as SSPP nears a significant milestone: a test launch of multifunctional technology-demonstrator prototypes that collect sunlight and convert it to electrical energy, transfer energy wirelessly in free-space using radio frequency (RF) electrical power, and deploy ultralight structures that will be used to integrate them.

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When automotive chieftains gather in Munich this upcoming week for Europe’s first major car show in two years, they’ll do more than just lift the veil on shiny sheet metal. These are occasions where big deals tend to get done.

Consider one of the last times the auto world descended on a European city for such a forum in March 2019. Just before the action got underway in Geneva, the CEOs of Peugeot maker PSA and Fiat Chrysler met to sow the seeds of what blossomed into a mega merger, vaulting Stellantis NV into the same league as Toyota Motor Corp. and Volkswagen AG.

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