Dark Photon portal to the Dark Universe — It appears the universe is full of dark matter – around six times more of it than there is regular matter. It has obvious visible effects, such as the way it bends light from distant galaxies. Despite dedicated searches, no signs of a dark matter particle explaining these effects have turned up.
Perhaps instead physicists will be able to find some dark force, a portal into the dark world. Such a ‘dark photon’ would be dark matter’s equivalent of a photon, in the way that dark matter particles interact with one another. Scientists are searching for such a particle. It hasn’t turned up yet, based on new results from the Large Hadron Collider in Geneva Switzerland. But the search isn’t over – and a lot of physicists are really excited about it.
~ We all mutter ‘matter matters’.
Atomic Clock for space — The so-called Deep Space Atomic Clock (DSAC) is far smaller than Earth-bound atomic clocks, yet far more precise than the handful of other space-bound atomic clocks, and it’s more resilient against the stresses of space travel than any clock ever made. According to a NASA statement, it’s expected to lose no more than 2 nanoseconds (2 billionths of a second) over the course of a day. That comes to about 7 millionths of a second over the course of a decade. n an email to Live Science, Andrew Good, a Jet Propulsion Laboratory representative, said the first DSAC will hitch a ride on the second Falcon Heavy launch, scheduled for June.
~ Seems like a long way to go to tell the time, though.
Chip-based Quantum Computer passes test — Researchers from two teams now working with Intel have reported advances in a new quantum computing architecture, called spin qubits, in a pair of papers out today. They’re obviously not the full-purpose quantum computers of the future. But they’ve got a major selling point over other quantum computing designs. The qubits have been made in silicon chips, similar to what’s used in classical computer processes.
~ Thus offering the possibility of scaling up fairly rapidly.
Artificial Intelligence and Chinese pigs — Alibaba’s Cloud Unit has signed an agreement on with the Tequ Group, a Chinese food-and-agriculture conglomerate that raises about 10 million pigs each year, to deploy facial and voice recognition on Tequ’s pig farms. The company will offer software to Tequ that it will deploy on its farms with its own hardware. Using image recognition, the software will identify each pig based on a mark placed on its body, to correspond with a file for each pig in a database which records and tracks characteristics such as the pig’s breed type, age, and weight.
~ All the way to your plate? But this may all be in vain, for …
Lab-Grown meat is inevitable — That’s in a Wired story that’s paywalled, though.
Concussion blood test — The US Food and Drug Administration has approved a long-awaited blood test to detect concussions in people and more quickly identify those with possible brain injuries.
The test, called the Banyan Brain Trauma Indicator, is also expected to reduce the number of people exposed to radiation through CT scans, or computed tomography scans, that detect brain tissue damage or intracranial lesions. If the blood test is adopted widely, it could eliminate the need for CT scans in at least a third of those with suspected brain injuries, the agency predicted.
~ Still not making rugby any more attractive.
Germany considers free public transport to combat air pollution — Car nation Germany has surprised neighbours with a radical proposal to reduce road traffic and air pollution by making public transport free, as Berlin scrambles to meet EU air pollution targets and avoid big fines.
The move comes just over two years after Volkswagen’s devastating ‘dieselgate’ emissions cheating scandal unleashed a wave of anger at the auto industry, a keystone of German prosperity.
~ Good luck with the pollution generated by your neighbours, then.
Massive iceberg split reveals mysterious seafloor — An international team of scientists is about to embark on a mission to explore the newly exposed marine ecosystem underneath – one that’s been hidden for over 100,000 years.
Iceberg A-68, as it’s called, calved from Antarctica’s Larsen C Ice Shelf on 12 July 2017. Weighing about a trillion tonnes and featuring a surface area of 5800 square kilometres, the iceberg is about the size of Delaware, or about four times bigger than London, England. It’s been drifting away from the area for months now, slowly disintegrating into smaller and smaller bits (and spawning treacherous many icebergs in the process). For thousands of years, this chunk of ice rested above the seafloor, but with it gone, scientists are eager to explore the mysterious world underneath.
~ I predict it will be wet and cold. (It’s OK, don’t thank me.)
Swedish researchers found 8000-year-old mounted skulls — Researchers in Sweden have uncovered evidence of a behaviour never seen before in ancient hunter-gatherers: the mounting of decapitated heads onto stakes. The grim discovery challenges our understanding of European Mesolithic culture and how these early humans handled their dead.
Displaying decapitated heads on wooden stakes is something you might expect from the Middle Ages, but as a new paper published in the journal Antiquity shows, it’s a practice that goes back much further in time. The discovery is the first evidence of this behaviour among Mesolithic hunter-gatherers, who had not so far been known for dramatic displays of this sort. The researchers who found the skulls are at a loss to explain why these ancient Europeans would have mounted them on posts, but the reason may not be as sinister as it appears.
~ I suspect it was still hard to get a head in those days.