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Nov 5, 2022

A new quantum component made from graphene

Posted by in categories: particle physics, quantum physics

Less than 20 years ago, Konstantin Novoselov and Andre Geim first created two-dimensional crystals consisting of just one layer of carbon atoms. Known as graphene, this material has had quite a career since then.

Due to its exceptional strength, is used today to reinforce products such as tennis rackets, car tires or aircraft wings. But it is also an interesting subject for , as physicists keep discovering new, astonishing phenomena that have not been observed in other materials.

Nov 5, 2022

European astrophysicist pokes a hole in the Big Bang theory

Posted by in category: cosmology

Everyone knows that the universe began about 14 billion years ago after the Big Bang happened. It turns out, ‘everyone’ might be wrong.

Nov 5, 2022

China-Linked Internet Trolls Try Fueling Divisions in U.S. Midterms, Researchers Say

Posted by in categories: cybercrime/malcode, internet

Google’s cybersecurity arm says activity shows a new interest in sowing discord in American politics, though the impact has been minimal.

Nov 5, 2022

How one company is turning used chopsticks into furniture, shelves, and countertops

Posted by in category: futurism

ChopValue, a Canadian company, repurposes millions of chopsticks every year as shelves, furniture and countertops.

Nov 5, 2022

MAST develops adaptable flat-pack system for building floating homes

Posted by in categories: habitats, sustainability

Danish maritime architecture studio MAST has developed Land on Water, a system for constructing floating buildings that aims to be more flexible and sustainable than traditional methods.

The system designed by Copenhagen-based MAST consists of modular containers that can be filled with various floatation elements, similar to how gabion cages are used in the construction industry.

Made from recycled reinforced plastic, these flat-pack modules could be easily transported around the world and assembled in different configurations to suit a range of building types.

Nov 5, 2022

“Unexpected” — Scientists Discover an Anti-Aging Mechanism

Posted by in categories: biotech/medical, life extension, neuroscience

A multinational team headed by University College London scientists has discovered a new mechanism that slows down and maybe even prevents the normal aging of immune cells, one of the nine “hallmarks of aging.”

The discovery in-vitro (cells) and validated in mice was “unexpected,” according to the researchers, who believe harnessing the mechanism might extend the life of the immune system, enabling people to live healthier and longer lives, and would also have therapeutic use for diseases such as cancer and dementia. Their findings were recently published in the journal Nature Cell Biology.

Explaining the study, lead author, Dr. Alessio Lanna, Honorary Professor at UCL Division of Medicine, said: Immune cells are on constant high-alert, always ready to fight pathogens. To be effective they also must persist for decades in the body – but the strategies employed to execute this life-long protection are largely unknown.

Nov 5, 2022

Quantum Error Correction: Time to Make It Work

Posted by in categories: computing, quantum physics

If technologists can’t perfect it, quantum computers will never be big.

Nov 5, 2022

Entangled Photons Can Come Out in Webs Now

Posted by in category: quantum physics

The equipment that generates quantum entanglement is bulky and produces entangled photons just a pair at a time. Now scientists have created a device roughly one-third as thick as a penny that can yield complex webs of entangled photons—not just in pairs, but several pairs all linked together.

Nov 5, 2022

Pong in a Dish

Posted by in categories: biological, internet, robotics/AI

Ever hear of the Turk —the 19th-century mechanism topped by a turbaned head that played chess against all comers? In fact, hidden inside was a diminutive chessmaster, one you might imagine deadpanning, “Eh, It’s a living.

Then there’s its namesake, the Mechanical Turk —a 21st-century service offered by Amazon to mark up images on the Web with the help of crowdsourced freelancers. They, too, might intone, glassy-eyed, “It’s a living.”

Continue reading “Pong in a Dish” »

Nov 5, 2022

Optical Frequency Combs Moving into Biomedical Instrumentation?

Posted by in category: biotech/medical

“It’s like being able to see the mountain all at once—the whole landscape and the individual trees.” That’s how researcher Jun Ye describes direct frequency-comb absorption spectroscopy. Ye and his JILA/National Institute of Standards and Technology colleagues in Boulder, CO, used optical frequency combs to analyze complex gas mixtures for a forthcoming IEEE Transactions on Plasma Science paper on a novel cold-plasma sterilization method.

The system bathes surfaces—agar plates, plastic ID badges (a “major vector for pathogen transmission…currently not subject to any disinfection/sterilization procedures…”), biofilms, and mouse skin (free-radical-rich gases have been shown to disinfect wounds and speed healing)—and mixtures of plasma-derived ozone (O3), hydrogen peroxide (H2O2), nitrous oxide (N2O), and nitrogen dioxide (NO2). It appears to work well, deactivating most surface bacteria in 15 to 60 seconds.

A further object of the study, however, was to discover exactly which gas proportions provided the most effective sterilization. The mix of gases, each with its own pattern of absorption transitions, made monitoring the flow a challenge for conventional Fourier transform infrared (FTIR) absorption spectroscopy.