Really nice write up on how a 3rd gen. one-way quantum repeaters could provide extremely quick data transfer rates.
Third-generation one-way quantum repeaters, based on quantum bits and multilevel systems, could provide extremely quick data transfer rates.
The astrophysics project Space Warps offers a compelling example of why citizen science has become such a popular tool and how valuable it can be. In a roundtable discussion with the Kavli Foundation, citizen science leaders and astrophysicists Chris Lintott, Anupreeta More and Aprajita Verma discuss the tremendous impact these enthusiastic volunteers are having.
A new theory from physicists at the U.S. Department of Energy’s Brookhaven National Laboratory, Fermi National Accelerator Laboratory, and Stony Brook University, which will publish online on January 18 in Physical Review Letters, suggests a shorter secondary inflationary period that could account for the amount of dark matter estimated to exist throughout the cosmos.
“In general, a fundamental theory of nature can explain certain phenomena, but it may not always end up giving you the right amount of dark matter,” said Hooman Davoudiasl, group leader in the High-Energy Theory Group at Brookhaven National Laboratory and an author on the paper. “If you come up with too little dark matter, you can suggest another source, but having too much is a problem.”
Measuring the amount of dark matter in the universe is no easy task. It is dark after all, so it doesn’t interact in any significant way with ordinary matter. Nonetheless, gravitational effects of dark matter give scientists a good idea of how much of it is out there. The best estimates indicate that it makes up about a quarter of the mass-energy budget of the universe, while ordinary matter — which makes up the stars, our planet, and us — comprises just 5 percent. Dark matter is the dominant form of substance in the universe, which leads physicists to devise theories and experiments to explore its properties and understand how it originated.
Well well well……
It looks like we just might have some neighbors after all!
Hopefully their idea of a good housewarming present DOESN’T include planetary extermination! wink
A star called KIC 8462852, or Tabby’s star, has been behaving oddly since 1890, not just recently as had been thought – and astronomers have no idea why.
This image shows how two microbots can be independently controlled when operating within a group. (Purdue University image/David Cappelleri)
Purdue University researchers have developed a method to use magnetic fields to independently control individual microrobots operating within groups.
The design allows for each microbot to work independently while operating in groups, similar to how ants work. Until now, it was generally only possible to control groups of microbots to move generally in unison, said David Cappelleri, an assistant professor of mechanical engineering at Purdue.
Tardigrades, or “water bears,” are renowned for their remarkable survival skills. But these microscopic creatures are far more indestructible than we thought. In a recent experiment, scientists in Japan successfully revived a tardigrade that had been frozen for more than three decades.
That’s a new record.
Tardigrades are tiny water-dwelling extremophiles that are capable of withstanding some of the most severe environmental conditions, including freezing, total dehydration, radiation, and even the vacuum of space. Much of this has to do with their extraordinary genome, of which nearly 18% is comprised of DNA from other organisms, including plants, fungi, bacteria, and viruses.
“Space is lousy with profits. Consider the asteroid Ryugu: It’s made of so many tons of nickel, iron, cobalt, and water, it’s worth an estimated $95 billion.”
One of the main causes of infertility in men is low sperm motility. That is to say, the sperm are present and alive, but they have the swimming prowess of a toddler that’s afraid to lose its water wings.
In short, they just aren’t fast enough to reach the egg.
It’s hard to fault them, I can’t get to the front door fast enough for the FedEx guy not to leave my package in the bushes these days.
Y-3 in space! We officially announce our partnership with Virgin Galactic to create their future pilot flight-suits.
A pioneering spirit and dedication to pushing the boundaries of possibility- Y-3 announce a space-apparel partnership with Virgin Galactic.We have been developing the intersection of fashion and space, underpinned by a shared approach to design and innovation, as they create apparel system for the world’s first commercial spaceline.
The prototype pilot flight-suit and boot was unveiled at Spaceport America in New Mexico, home to Virgin Galactic’s Gateway to Space terminal.
The Y-3 design team has paired the adidas brand’s technical know-how and Y-3’s directional approach to style with the use of advanced fabrics, special techniques and bespoke specifications to ensure fit, comfort and performance. This flight-suit is being designed to fully support a pilot’s natural seating position as identified through a series of tests and trials with the Virgin Galactic pilot corps. Material engineering is key, as the flight-suit has been constructed from Nomex Meta Aramid materials through a 3D engineered pattern.
