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Team develops new method for communicating around arbitrary opaque walls

Information transfer in free space using ultraviolet, visible, or infrared waves has been gaining interest because of the availability of large bandwidth for high-data-rate communication. However, the presence of opaque occlusions or walls along the path between the transmitter and the receiver often impedes information transfer by blocking the direct line of sight.

In a new article published in Nature Communications, a team of researchers at UCLA Samueli School of Engineering and the California NanoSystems Institute, led by Dr. Aydogan Ozcan, the Chancellor’s Professor of Electrical & Computer Engineering, and Dr. Mona Jarrahi, the Northrop Grumman Endowed Chair at UCLA, has reported a fundamentally new method for delivering optical information around arbitrarily shaped opaque occlusions or walls.

This method permits the transmission of optical information, for example, images, around large and dynamically changing opaque occlusions. It is based on digital encoding at the transmitter and diffractive all-optical decoding at the receiver for transferring information around arbitrary opaque occlusions that completely block the direct line of sight between the transmitter and the receiver apertures.

400 earthquakes recorded under Mount St. Helens since mid-JulyUpdated 2 hours ago

About 400 earthquakes have rumbled under Mount St. Helens since mid-July, the largest chain of shakes since the volcano finished erupting in 2008, the U.S. Geological Survey reported last week.

Small magnitude earthquakes, detected only by sensitive equipment, signal a volcano’s “recharging” as magma flows through chambers and cracks deep under the ground, said Wes Thelen, U.S. Geological Survey Cascades Volcano Observatory geophysicist and seismologist.

Between late August and early September, scientists observed 40 to 50 earthquakes per week located between 2.5 to 5 miles below the crater floor, before recently dwindling to 30. To compare, Mount St. Helens averaged roughly 11 quakes per month since 2008.

Former Google CEO invests in nonprofit creating an ‘AI scientist’

Eric Schmidt is funding a nonprofit that’s focused on building an artificial intelligence-powered assistant for the laboratory, with the lofty goal of overhauling the scientific research process, according to interviews with the former Google CEO and officials at the new venture.

The nonprofit, Future House, plans to develop AI tools that can analyze and summarize research papers as well as respond to scientific questions using large language models — the same technology that supports popular AI chatbots. But Future House also intends to go a step further.

The “AI scientist,” as Future House refers to it, will one day be able to sift through thousands of scientific papers and independently compose hypotheses at greater speed and scale than humans, CEO Sam Rodriques said on the latest episode of the Bloomberg Originals series AI IRL.

Lovesick: Viruses have been caught leaving ‘love bites’ on each other for the first time ever!

In fact, the paper outlines that 80% of the helpers had a satellite nibbling on their “necks”. The ones that didn’t had satellite tendrils at the neck site, what we referred to as love bites earlier.

Satellite viruses usually have a gene that helps them assimilate effectively after entering their hosts, and not get killed off in the process. Surprisingly enough, in this instance, the satellite had no gene for integration. The scientists reckon that to thus remain safe, they must keep snuggled with their helper viruses every time they enter a host.

The study’s authors revealed that the satellite and helper have been co-evolving for a long time, and this unusual behaviour might’ve been a result of that process. It’s hard not to develop separation anxiety if you’ve been with someone for 100 million years, after all.

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