Dear Reader ,
Here is your customized Phys.org Newsletter for week 11:
Water-rich gem points to vast 'oceans' beneath the Earth
A University of Alberta diamond scientist has found the first terrestrial sample of a water-rich gem that yields new evidence about the existence of large volumes of water deep beneath the Earth.
Turing's theory of chemical morphogenesis validated 60 years after his death
Alan Turing's accomplishments in computer science are well known, but lesser known is his impact on biology and chemistry. In his only paper on biology, Turing proposed a theory of morphogenesis, or how identical copies of a single cell differentiate, for example, into an organism with arms and legs, a head and tail.
Astronomers map out Earth's place in the universe among 'Council of Giants'
We live in a galaxy known as the Milky Way � a vast conglomeration of 300 billion stars, planets whizzing around them, and clouds of gas and dust floating in between.
GE to take next leap in magnetocaloric refrigeration (w/ video)
(Phys.org) �Before the microwave gained fame as a kitchen wonder, there was the, gasp, refrigerator, a kitchen wonder that could freeze meat and keep ice cream from melting on top, while preserving the life of leftovers and milk, juice and eggs below. For Americans, GE became an entrenched brand name in owning the modern fridge. Now GE wants to write the second chapter in home refrigeration. This week GE announced its research focus on magnetic (magnetocaloric) refrigeration, which uses no refrigerants or compressors and is 20 percent more efficient than what is used today. The technique involves the use of a water-based fluid and magnets. Rotating magnets change the magnetic field back and forth and pump water-based cooling fluid between the cold side to the hot side.
Natural selection has altered the appearance of Europeans over the past 5,000 years
Anthropologists at Johannes Gutenberg University Mainz and geneticists at University College London, working in collaboration with archaeologists from Berlin and Kiev, have analyzed ancient DNA from skeletons and found that selection has had a significant effect on the human genome even in the past 5,000 years, resulting in sustained changes to the appearance of people.
Long-term warming likely to be significant despite recent slowdown
A new NASA study shows Earth's climate likely will continue to warm during this century on track with previous estimates, despite the recent slowdown in the rate of global warming.
Largest yellow hypergiant star spotted
ESO's Very Large Telescope has revealed the largest yellow star�and one of the 10 largest stars found so far. This hypergiant has been found to measure more than 1,300 times the diameter of the Sun, and to be part of a double star system, with the second component so close that it is in contact with the main star. Observations spanning over 60 years also indicate that this remarkable object is changing very rapidly.
World's first 3-D acoustic cloaking device hides objects from sound
(Phys.org) �Using little more than a few perforated sheets of plastic and a staggering amount of number crunching, Duke engineers have demonstrated the world's first three-dimensional acoustic cloak. The new device reroutes sound waves to create the impression that both the cloak and anything beneath it are not there.
Climatologist challenges low-end claims of Intergovernmental panel
(Phys.org) �Drew Shindell, a climatologist and ozone specialist with NASA's Goddard Institute for Space Studies, has published a Letter piece in the journal Nature Climate Change challenging the findings of an intergovernmental panel that last fall concluded that average global temperatures are likely to increase by a minimum of 1.0�C over the next 70 years. Shindell claims the panel misinterpreted some important data which he says, if used correctly, would actually show a minimum rise 1.3�C over the same time period. In an accompanying News & Views piece, David Stainforth of the Grantham Research Institute on Climate Change and the Environment, London School of Economics, backs up Shindells claims and suggests that it's important that data used in creating projection models be as accurate as possible as such models are becoming increasingly important to policy-makers.
Nanomolecular origami boxes hold big promise for energy storage
(Phys.org) �If you think your origami skills can't be beat � try this: (1) use the world's thinnest material, (2) make the origami fold and unfold itself, and (3) pack into your miniscule origami box enough hydrogen atoms to exceed future U.S. goals for hydrogen energy storage devices. Researchers from the University of Maryland have done all three.
Possible evidence for dark matter particle presented
(Phys.org) �Dark matter, the mysterious substance estimated to make up approximately more than one-quarter of the mass of the universe, is crucial to the formation of galaxies, stars and even life but has so far eluded direct observation.
CDC warns that gonorrhea on verge of being untreatable
(Medical Xpress)�The CDC has issued a report detailing its findings in attempting to trace the increasing difficulty in treating gonorrhea, a sexually transmitted disease (STD) that can cause severe discomfort, serious medical problems (such as sterility) for both genders and in very rare cases, death.
Researchers at Tokai J-PARC report solar neutrino signal is slightly stronger at night
(Phys.org) �Researchers working on the J-PARC project in Tokai, Japan are reporting slightly stronger neutrino detection occurring at night, due they say to changes that occur in flavor as the neutrinos pass through the Earth. In their paper published in Physical Review Letters, the researchers describe the results they found when analyzing a year's worth of data from their detector, which showed a flux of solar neutrinos during nighttime that was approximately 3.2 percent greater than what was measured during the day.
Astronomers find faint strings of galaxies inside empty space
(Phys.org) �Australian astronomers have shown galaxies in the vast empty regions of the Universe are actually aligned into delicate strings in research published today in the Monthly Notices of the Royal Astronomical Society.
Solving the Midwest's biggest geologic mystery
(Phys.org) �Geologists from Northwestern University, the University of Illinois at Chicago, the University of Oklahoma and Purdue University have a new explanation for the Midwest's biggest geologic mystery: What caused the giant 2,000-mile-long rift that starts in Lake Superior and runs south to Oklahoma and Alabama?
Researchers develop new kind of internal combustion microengine
(Phys.org) �A team of researchers with members from Russia, The Netherlands and Germany has developed a new kind of microengine, based on the possible combustion of oxygen and hydrogen. In their paper published in Scientific Reports, the team describes how they built the new engine, how they think it works, and what it could mean for the development of future microsystems.
Planet X myth debunked
It was an elusive planet that for 200 years appeared to explain Uranus's wobbly orbit. And there was the sister sun theorized to be near our solar system that caused asteroids to swerve toward Earth.
Scientists build thinnest-possible LEDs to be stronger, more energy efficient
(Phys.org) �Most modern electronics, from flat-screen TVs and smartphones to wearable technologies and computer monitors, use tiny light-emitting diodes, or LEDs. These LEDs are based off of semiconductors that emit light with the movement of electrons. As devices get smaller and faster, there is more demand for such semiconductors that are tinier, stronger and more energy efficient.
Granny galaxies discovered in the early universe
(Phys.org) �An international team of astronomers have discovered the most distant examples of galaxies that were already mature and massive � not just young, star-forming galaxies in the nursery-room of the early Universe but also old, 'retired' ones � 'granny galaxies'.
How do you jumpstart a dead star?
It's a staple of science fiction, restarting our dying star with some kind of atomic superbomb. Why is our sun running out of fuel, and what can we actually do to get it restarted?
This email is a free service of Phys.org
You received this email because you subscribed to our list.
If you no longer want to receive this email use the link below to unsubscribe.
https://sciencex.com/profile/nwletter/
You are subscribed as jmabs1@gmail.com
No comments:
Post a Comment