A new recipe unlocks “impossible” nanocrystals for LEDs, implants, and superconductors - Science Daily

Scientists in Japan have discovered that tiny steps just one atom high can act like microscopic railroad tracks, guiding the movement of quantum vortices inside an ultrathin superconductor. Under certain conditions, these vortices moved more than 1,000 times more easily along the steps than across them. Researchers also found that they could adjust this remarkable effect simply by changing the temperature or magnetic field. The discovery was made by researchers at the Research Center for Materials Nanoarchitectonics (MANA), part of Japan's National Institute for Materials Science (NIMS). Their findings offer a promising new approach to controlling quantum behavior and could eventually help engineers develop superconducting electronics that use far less energy while processing information more efficiently.

Superconductors are among the most remarkable materials in quantum physics. When certain materials are cooled below a specific transition temperature, their electrical resistance disappears. Electricity can then flow through them without losing energy as heat. This happens because electrons form correlated pairs called Cooper pairs. Instead of moving independently, these pairs act collectively, somewhat like a wave traveling through the material. This unusual property makes superconductors promising for applications including powerful magnets, highly sensitive detectors, and quantum circuits.

Science Corporation CEO Max Hodak announced that the company has implanted its vision-restoring chip, PRIMA, into its first patient with Stargardt disease, an inherited eye disease that gradually destroys central vision. Hodak, the former president and co-founder of Neuralink, the brain implant company, explained onstage at TechCrunch Disrupt how the company’s work with PRIMA fits into its broader pursuit of a novel brain-computer interface (BCI). “The retina is part of the central nervous system,” Hodak said. “We consider cochlear implants, retinal prostheses, motor prostheses, these are all different types of BCIs.”

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.

Orcas are hunting great White Sharks around the world, scientists confirmThe killing of great whites by orcas has been reported in the waters of South Africa, California, and Australia, and the implications that the hunting behaviour would have on the marine ecosystem have been considered. In fact, it all started back on May 3, 2017, when the body of a female great white, weighing 1,100 kilograms, washed ashore in Gansbaai, close to Cape Town, with a deep gash through which its 90-kilogram liver had been extracted. Five more corpses of great whites appeared with similar wounds in the coming months, as claimed by shark biologist Alison Towner of Rhodes University. Two adult males, called Port and Starboard, who are supposed to be brothers judging by their dorsal fins that fold differently, were identified as the most probable perpetrators. The connection was officially established in 2022 based on video footage of a drone that caught three orcas chasing and biting a 3-meter great white off Mossel Bay. The sharks quickly disappeared from Dyer Island, one of the best places in the world to witness a great white.

Milky Way’s first microblazar candidate sits 12,000 light-years away, offering a rare ground-level lab for studying relativistic jetsA black hole 12,000 light-years away is firing a jet of plasma almost directly toward Earth. At that distance, no known or expected danger to Earth has been identified by the researchers or the institutions involved. What astronomers have actually found is rarer and more interesting than a threat. Researchers have identified IRAS 18293-0941 as a compelling candidate for the Milky Way’s first microblazar, a class of object that gives astrophysicists a close-up laboratory for studying some of the most violent physics in the galaxy. What Astronomers FoundThe discovery centers on a binary system whose black hole expels plasma jets at close to three-quarters the speed of light, pointed almost directly toward Earth. The system pairs a hot, massive star with a black hole that completes a full orbit roughly every 11.38 days. Material drawn from the companion star feeds the black hole, and some of that matter gets expelled outward as opposing jets traveling at approximately three-quarters the speed of light. Terminology matters here.