O.o!
Some 4,000 years ago, a tiny population of woolly mammoths died out on Wrangel Island, a remote Arctic refuge off the coast of Siberia.
They may have been the last of their kind anywhere on Earth.
Continue reading “Scientists resurrected a Wrangel Island mammoth’s mutated genes” »
Sharks are at the top of the marine food chain for a reason. Their massive size along with a dazzling row of extra-sharp teeth make them the fiercest hunters in our oceans. But it turns out that the shark’s aquatic dominance reaches down into its very DNA, and through its mutations, sharks could teach us how to fight our most deadly affliction—cancer.
This isn’t the first evidence that mutations can prove beneficial for disease resistance and long-term survival. High bone density, a hemoglobin that boosts malaria resistance, and a third retinal cone that improves color vision are some human examples. But new gene mapping conducted by scientists at the Save Our Seas Foundation Shark Research Center at Florida’s Nova Southeastern University, the Guy Harvey Research Institute, and the Cornell University College of Veterinary Medicine shows that sharks have developed genomic adaptations that repair damaged DNA, effectively protecting them against cancer and other diseases.
O.o!
The epic collision between two neutron stars in 2017 really is the science gift that keeps on giving. As they merged, gravitational waves rippled out across the Universe; now reverberations from that event could confirm a decades-old hypothesis about black holes.
Continue reading “We May Finally Have a Way to Detect Hawking Radiation Leaking From Black Holes” »
O.o circa 2015.
Researchers from the Australian National University (ANU) and the University of Otago in New Zealand have created a prototype quantum hard drive that may fundamentally alter the realm of secure, long-distance data encryption. Using atoms of the rare-earth element europium embedded in yttrium orthosilicate (YSO) crystals, the scientists have shattered previous records for quantum information retention by creating a storage device capable of holding quantum state information for up to six hours at a time.
Quantum data encryption already offers the promise of intrinsically secure electronic data interchange over relatively short distances (up to around 100 km (62 mi) or so). However, this latest research may help enable a worldwide quantum-encrypted communications network by providing unprecedented storage capabilities and effectively negating the instability problems inherent in currently available technology.
Continue reading “Scientists create prototype quantum hard drive” »
Traditionally, India’s best and brightest tech talent has emigrated to the United States for lucrative job opportunities. But now they’re putting their entrepreneurial spirit and engineering skills to use at home.
VICE correspondent Krishna Andavolu heads to the city of Bangalore to explore what may indeed be the world’s next Silicon Valley.
Continue reading “India Is Becoming Its Own Silicon Valley | VICE on HBO” »
Bernardeta Gómez has been blind for 16 years. But using a bionic eye developed by Spanish neuroengineer Eduardo Fernandez, she was able to see again — without using her biological eyes at all.
The system, which Fernandez is honing at his University of Miguel Hernandez lab, comprises a few different parts, as detailed in a newly-published story in MIT Technology Review.
First, there’s a pair of glasses fitted with a camera that connects to a computer. The computer translates the camera’s live video feed into electronic signals. Those signals are then sent via a cable to a port that Fernandez surgically embedded in the back of Gómez’s skull. That port connects to an implant in the visual cortex of Gómez’s brain.
Rubin’s study of the Rous sarcoma virus, which causes cancer in chickens, paved the way for the discovery of cancer-causing genes in humans.
There are many satellites in space and we know which launch put most of them up there. But there are a number of them that are not associated with a specific launch, though it would be desirable to identify which put them into orbit. This article is about a technique which could help associate objects in space with particular launches, one that I am currently developing. But let’s start with some background information: what do we know about most satellites?
First, there are several catalogs of satellites. These are lists of satellites and information about them, and are maintained by different organizations. What are these catalogs? I have written a couple of articles that have appeared here that give some background, such as one about overlooked satellites (see “Acknowledging some overlooked satellites”, The Space Review, June 12, 2017), while another discusses why some satellites are in some catalogs and not others (see “Time for common sense with the satellite catalog”, The Space Review, April 10, 2017).
The US Air Force maintains the default world official satellite catalog and assigns official satellite numbers and “international designators,” which state what launch each object is associated with. The Air Force gets observations from many sites, radar and optical, around the world and uses them to generate and maintain orbital parameters for satellites. That is how they know which object is from which launch. That international designator is very important when a satellite reenters: the country that owns a satellite that reenters is responsible for any damage caused when it impacts the ground. Also, for satellite collisions, the country that owns a satellite that “causes” a collision is responsible for damage.
Lasers and quantum calculations help metrologists to update centuries-old mercury methods.
