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60 Minutes+ correspondent Laurie Segall reports on the big money being spent in a world somewhere between digital and reality. See the story, streaming now only on Paramount+.

“60 Minutes” is the most successful television broadcast in history. Offering hard-hitting investigative reports, interviews, feature segments and profiles of people in the news, the broadcast began in 1,968 and is still a hit, over 50 seasons later, regularly making Nielsen’s Top 10.

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Continue reading “NFTs and the Metaverse: The internet enters a new phase” | >

But a team of physicists is proposing a radical idea: Instead of forming black holes through the usual death-of-a-massive-start route, giant dark matter halos directly collapsed, forming the seeds of the first great black holes.

Supermassive black holes (SMBHs) appear early in the history of the universe, as little as a few hundred million years after the Big Bang. That rapid appearance poses a challenge to conventional models of SMBH birth and growth because it doesn’t look like there can be enough time for them to grow so massive so quickly.

“Physicists are puzzled why SMBHs in the early universe, which are located in the central regions of dark matter halos, grow so massively in a short time,” said Hai-Bo Yu, an associate professor of physics and astronomy at UC Riverside, who led a study of SMBH formation that appeared in Astrophysical Journal Letters.

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Researchers in Singapore and at CalTech have developed a 3D printed fabric with an interesting property: it is generally flexible but can stiffen on demand. You can see a video about the new fabric, below.

The material consists of nylon octahedrons interlocked. The cloth is enclosed in a plastic envelope and vacuum-packed. Once in a vacuum, the sheet becomes much stiffer and can hold many times its own weight.

Presumably, the idea would be to allow the material to flex in the plastic envelope until there was a need for the increased rigidity, and then remove the air. Of course, there are a lot of practical problems with that. If the envelope is no longer air tight, for example, the operation will fail. It is also hard to rapidly remove the air from the bag to make, say, something like Batman’s cape which was a comparison the researchers drew.

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A new study by scientists has demonstrated how researchers may be able to create an accelerating jet of antimatter from light.

A team of physicists has shown that high-intensity lasers can be used to generate colliding gamma photons – the most energetic wavelengths of light – to produce electron-positron pairs. This, they say, could help us understand the environments around some of the Universe’s most extreme objects: neutron stars.

The process of creating a matter-antimatter pair of particles – an electron and a positron – from photons is called the Breit-Wheeler process, and it’s extremely difficult to achieve experimentally.

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Bionic arms used to cost $80,000. Now, a young engineer has lowered the cost by over 90%.

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Unlimited Tomorrow is pioneering a new age in prosthetics with its 3D-printed robotic arms. Founded in 2,014 by Easton LaChapelle when he was just 18 years old, the company is poised to become a leader in the prosthetic arm industry. Their True Limb device costs less than $8,000 and it’s even cheaper for children, priced at about $4,000.

True Limb is both functional and realistic-looking, serving as a mirror image of the amputee’s opposing limb, even down to the fingertips. And while the prosthetic arm is 60–90% cheaper than traditional prosthetics, many users say it’s far superior to market alternatives. What’s the secret? Unlimited Tomorrow uses a totally remote, custom process that cuts out middlemen to produce prosthetics completely in-house.

Continue reading “3D printed, mind-controlled prosthetics are here | Challengers” | >

This is interesting. 😃

A new discovery in rats shows that the brain responds differently in immersive virtual reality environments versus the real world. The finding could help scientists understand how the brain brings together sensory information from different sources to create a cohesive picture of the world around us. It could also pave the way for “virtual reality therapy” for learning and memory-related disorders ranging including ADHD, Autism, Alzheimer’s disease, epilepsy and depression.

Mayank Mehta, PhD, is the head of W. M. Keck Center for Neurophysics and a professor in the departments of physics, neurology, and electrical and computer engineering at UCLA. His laboratory studies a brain region called the hippocampus, which is a primary driver of learning and memory, including spatial navigation. To understand its role in learning and memory, the hippocampus has been extensively studied in rats as they perform spatial navigation tasks.

Continue reading “Virtual reality boosts brain rhythms crucial for neuroplasticity, learning and memory” | >

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University of Advancing Technology’s Artificial Intelligence (AI) degree explores the theory and practice of engineering tools that simulate thinking, patterning, and advanced decision behaviors by software systems. With inspiration derived from biology to design, UAT’s Artificial Intelligence program teaches students to build software systems that solve complex problems. Students will work with technologies including voice recognition, simulation agents, machine learning (ML), and the internet of things (IoT).

Students pursuing this specialized computer programming degree develop applications using evolutionary and genetic algorithms, cellular automata, artificial neural networks, agent-based models, and other artificial intelligence methodologies. UAT’s degree in AI covers the fundamentals of general and applied artificial intelligence including core programming languages and platforms used in computer science.

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Solar Orbiter zipped by Venus earlier this week, just one day ahead of the Mercury-bound probe BepiColombo.

The sun-exploring spacecraft Solar Orbiter has captured this video of a glowing crescent of Venus as it flew past the planet during an orbit adjustment maneuver on Monday (Aug 9).

The video was taken by Solar Orbiter’s Heliospheric Imager, or SoloHI, as the joint European Space Agency (ESA)/NASA satellite zipped by the hot and cloudy planet at a distance of 4,967 miles (7,995 kilometers).

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