Apple drops lawsuit against NSO Group, citing risk of exposing critical threat intelligence amid growing spyware threats.
Category: futurism – Page 280
The structures and functions of correlations in neural population codes
In this Review, Panzeri, Moroni, Safaai and Harvey explain how the levels and structures of correlations among the activity of neurons in a population shape information encoding, transmission and readout, and describe how future research could determine how the structures of correlations are optimized.
Anti-Dark Matter and Quasi-Stars
An exploration of the idea of anti-dark matter and quasi stars and other objects that cannot exist in the universe right now, but may in the future and may have in the past.
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Searle’s wager
Nicholas Agar has recently argued that it would be irrational for future human beings to choose to radically enhance themselves by uploading their minds onto computers. Utilizing Searle’s argument that machines cannot think, he claims that uploading might entail death. He grants that Searle’s argument is controversial, but he claims, so long as there is a non-zero probability that uploading entails death, uploading is irrational. I argue that Agar’s argument, like Pascal’s wager on which it is modelled, fails, because the principle that we (or future agents) ought to avoid actions that might entail death is not action guiding. Too many actions fall under its scope for the principle to be plausible. I also argue that the probability that uploading entails death is likely to be lower than Agar recognizes.
World’s first LNG carrier with Wind Challenger set for 2026 delivery
The technology combines automatic sail control with real-time wind monitoring:
MOL and Chevron are equipping a new LNG carrier with the Wind Challenger, the world’s first wind-assisted LNG vessel, due in 2026.
Incredible Discovery Makes Skin Invisible By Using Yellow Dye
Get a Wonderful Person Tee: https://teespring.com/stores/whatdamathMore cool designs are on Amazon: https://amzn.to/3QFIrFXAlternatively, PayPal donations ca…
Materials Found to Be Surprisingly Transparent to Orbital Currents
Orbital currents are the lesser-known cousins of spin currents. Both involve an alignment of angular momentum. But spin currents are carried by spin-polarized electrons, while orbital currents are carried by electrons in orbitals having the same angular momentum. Like their spin counterparts, orbital currents could be useful for transmitting information in so-called orbitronic devices, but researchers had expected that these currents would not travel well across material interfaces. Now Igor Lyalin and Roland Kawakami from Ohio State University have measured the flow of orbital currents across selected materials placed in multilayer structures. They find, surprisingly, that the transport of orbital currents is as good or better than the transport of spin currents for most of the sampled materials.
Orbital currents can be generated via the so-called orbital Hall effect—a surface magnetization effect that was predicted 20 years ago but directly detected only in 2023 (see Synopsis: Detection of the Orbital Hall Effect). Interest in orbital currents is growing, as they could be more effective than spin currents at switching the orientation of magnetic layers in data-storage devices.
To study orbital current transport, Lyalin and Kawakami fabricated structures consisting of chromium and nickel layers, separated by a thin spacer. For the spacer material, they tested nonmagnetic metals, ferromagnetic metals, and antiferromagnetic insulators. The researchers generated an orbital current by applying a voltage to the chromium layer, and they measured how much of this current flowed through the structures by observing a magnetization change in the nickel. They found that 12 of the 15 spacer materials transported orbital currents more efficiently than spin currents—a result that could be good news for developing future orbitronic devices, Kawakami says.
