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Science in telegram
22 сент., 11:14
Science in telegram
22 сент., 01:48изменён
In principle, once cameras everywhere capture enough high-resolution, overlapping views, ordinary photographs may start to feel obsolete.Instead of saving a single flat image, those recordings could be used to reconstruct a navigable 3D representation of a scene — estimating the position, shape, depth, texture, and appearance of objects from multiple camera angles.You could then return to a particular moment, move the virtual camera to almost any viewpoint, and generate a new image from that angle. Parts of the scene that were never directly visible to any camera wouldn’t be true recordings — AI would have to infer and reconstruct them from the surrounding visual information.Author: joergkahlhoefer#gaussian #splat #3DScience in telegram
22 сент., 01:41
Science in telegram
21 сент., 07:32
⚛️ Scientists Found Quantum Entanglement Inside Higgs Boson DecaysEinstein famously disliked quantum entanglement enough to call it “spooky action at a distance.”Now physicists have found strong evidence that the same bizarre quantum connection survives inside some of the most violent particle collisions humans can create.Using the ATLAS Experiment detector at the Large Hadron Collider, researchers studied Higgs bosons decaying into pairs of Z bosons — massive particles that exist for only a tiny fraction of a second.The question was simple:Are the quantum states of those two particles independent — or entangled?The Z bosons disappear far too quickly to measure directly. Instead, researchers reconstructed their spin states from the directions of the electrons and muons produced when they decayed.The resulting correlations strongly favored quantum entanglement. APhysical Review LettersMeasurements of $Z$-Boson Pair Entanglement in Decays of Higgs Bosons at the ATLAS ExperimentFirst measurements of quantum entanglement between two massive vector bosons at the electroweak scale link quantum information concepts with precision measurements.Science in telegram
20 сент., 11:01
Science in telegram
20 сент., 07:04
🧠 Scientists Replaced Most of a Mouse’s Cortex With Human Brain TissueThis sounds like science fiction, but the experiment is real.Stanford researchers genetically engineered mice so that most of their cerebral cortex and hippocampus never developed. The adult animals were left with only about 2% of the normal amount of corresponding cortical tissue.Then, shortly after birth, scientists implanted tiny human cortical organoids — brain-like structures grown from human stem cells — into the empty space.Three months later, more than 90% of the cortical tissue by volume was human-derived.And it did not simply sit there.Human neurons became integrated into the mouse nervous system, developed organized electrical activity and sent long-range projections — some extending as far as the spinal cord. The mice retained broadly normal movement, although researchers found specificNatureDevelopmental xenocortication using human-derived organoids in miceNature - Xenocortication with human neurons enables circuit- and behaviour-level analysis of neurodevelopment in mice.Science in telegram
20 сент., 03:13
Science in telegram
19 сент., 04:03
Science in telegram
19 сент., 04:02
Science in telegram
17 сент., 11:18
Science in telegram
17 сент., 01:54
Science in telegram
15 сент., 11:03
Science in telegram
15 сент., 10:57изменён
Humanity continues to complicate its own future. Fruit flies have been loaded into drones and tiny vehicles. @scienceScience in telegram
15 сент., 10:57
Science in telegram
15 сент., 00:19
Science in telegram
14 сент., 11:53изменён
The brain of a dead male fruit fly was connected to a ROBOT — giving the fly a new body and allowing it to move freely through our world again.The fly’s neural activity is translated into commands for motors that control the robot’s legs.So, in a sense, the fly is… alive again.“Black Mirror” was a documentary.@scienceScience in telegram
14 сент., 11:45
Science in telegram
14 сент., 08:12
🌌 Astronomers Found 84 Cosmic Objects We Somehow Missed for DecadesThey were already sitting in NASA’s data.We simply weren’t looking at the right kind of light.Astronomers mining observations from the Chandra X-ray Observatory have uncovered 84 mysterious objects across six nearby galaxies, including Andromeda and the Pinwheel Galaxy. They appear to belong to a previously unrecognized population researchers are calling hypersoft X-ray sources.The strange part is their spectrum.Most bright X-ray binaries radiate strongly above 0.3 keV. These objects do almost the opposite: they appear primarily below 0.3 keV, right near the boundary between X-rays and extreme ultraviolet light. That makes them exceptionally difficult to see, because this radiation is easily absorbed by gas between the stars — and because standard astronomical surveys were not optimized to search this faintNatureHypersoft X-ray sources as a low-energy class of luminous cosmic emitterNature Astronomy - Hypersoft X-ray sources are found in an observational blind spot; they can be extremely luminous in the X-ray band and extreme ultraviolet, and are likely to be X-ray binary...Science in telegram
13 сент., 11:02
Science in telegram
13 сент., 09:02
🌌 A Detector One Mile Underground May Have Seen Dark MatterFor decades, dark matter has been one of physics’ strangest certainties.We can see its gravity shaping galaxies and the large-scale Universe — yet no one has ever directly detected the particle responsible for it.Now the LUX-ZEPLIN experiment, buried nearly a mile underground in South Dakota, has recorded one unusually difficult-to-explain event.LZ contains about 10 tonnes of ultrapure liquid xenon. Researchers watch for a dark-matter particle hitting a xenon nucleus and making it recoil. In 220 days of previously collected data, they found one event depositing about 248 keV of recoil energy — far more energetic than the simplest WIMP models normally predict.The team spent months trying to explain it as radioactive contamination, neutrons or another known background process.So far, none fits particularly well.UnderBerkeley LabLZ Sees Surprising Result in Search for Dark MatterFor the better part of a century, people have been trying to understand dark matter. This invisible substance makes up roughly 85% of the mass in the universe but has never been directly detected. Determining exactly what it is remains one of the biggest…
