Chocolate lovers may agree cocoa is the food of the gods, but how strong is the evidence that it boosts heart health? Researchers are recruiting for a new study aimed at answering this question.
fiddleoak posted a photo:
in editing, the photo got this close to being BW. pretty glad I didn't end up going that route.
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Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) surveyed dozens of young stars -- some sun-like and others approximately double that size -- and discovered that the larger variety have surprisingly rich reservoirs of carbon monoxide gas in their debris disks. In contrast, the lower-mass, sun-like stars have debris disks that are virtually gas-free. This finding runs counter to astronomers' expectations, which hold that stronger radiation from larger stars should strip away gas from their debris disks faster than the comparatively mild radiation from smaller stars. It may also offer new insights into the timeline for giant planet formation around young stars.
Image credit: NRAO/AUI/NSF; D. Berry / SkyWorks
meriwaniart posted a photo:
Silhouettes of a lady crossing a bridge over River Thames against the sunset
London August 2016
meriwani art photography
A Melbourne man has to hand over his entire stock of “The One Ring” knock-offs to the Tolkein Estate, after losing a copyright case.…
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London Docklands
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The hour approaches ~ Westminster Abbey, and the Tower of Big Ben. Take me back to London!
It was a hats-in-the-air weekend at NASA, with the agency announcing its Juno probe's first close-up Jupiter fly-by was a success.…
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‘This is our first opportunity to really take a close-up look at the king of our solar system,' says Scott Bolton, an investigator for the Juno probe, as the spacecraft orbited closer to the giant planet than any man-made object before it, in a record-breaking approach on Saturday by soaring around 2,600 miles above the planet at a speed of 130,000 mph. Juno is expected to capture astonishing images and important scientific data about Jupiter's composition, gravity, magnetic field, and the source of its 384 mph winds, say mission controllers at NASA.
Bolton, a principle investigator at the Southwest Research Institute in San Antonio in Texas, said Juno would have its whole suite of nine instruments activated as it soars above Jupiter's swirling cloud tops. The instruments had previously been switched off so as to survive the entry into the planet's dangerous radiation belts.
"This is the first time we will be close to Jupiter since we entered orbit on 4 July. Back then we turned all our instruments off to focus on the rocket burn to get Juno into orbit around Jupiter," said Bolton. "Since then, we have checked Juno from stem to stern and back again. We still have more testing to do, but we are confident that everything is working great, so for this upcoming flyby Juno's eyes and ears, our science instruments, will all be open. This is our first opportunity to really take a close-up look at the king of our solar system and begin to figure out how he works."
NASA says they hope to release some of the first detailed pictures of Jupiter's north and south poles. It could take some days for the images to be downloaded on Earth.
The Daily Galaxy via NASA/Juno Mission and The Independent.
Earlier this year, NASA scientists predicted that it's possible that the universe is filled with microscopic black holes that formed before our universe's existed. The NASA study reported that these black holes could speed through space like cosmic bullets every 1,000 years. Astrophysicists are proposing that our Universe is surrounded by infinite number of black holes that have formed 13.8 billion years ago.
"Asteroid-mass black holes, if they were all of the dark matter, might pass through the Earth once a millennium or so, but would be very, very hard to detect," Alexander Kashlinsky, an astrophysicist at NASA's Goddard Space Flight Center, told Business Insider. "We certainly would notice if one passed near the Earth, since it would affect the orbits of all of our satellites. Kashlinsky says the heaviest of them would weigh less than the Moon, yet would be shrunken down to about 0.25 millimeters in diameter, or about the width of a human hair.
Kashlinsky and the NASA team propose the intriguing view that dark matter is made of black holes formed during the first second of our universe's existence.
Timothy Brandt, an astrophysicist at the Institute for Advanced Study in Princeton, NJ, said the very lightest, asteroid-size holes would have an apparent size of less than an atom, beyond a certain point, any matter in the Universe squeezed tightly enough will collapse beyond gravitational destruction. "Asteroid-mass black holes, if they were all of the dark matter, might pass through Earth once a millennium or so, but would be very, very hard to detect," Brandt said. "If you had somebody right there, they might be able to observe one."
According to Brandt, asteroid-sized black holes would pass Earth approximately every 1,000 years, but they would be difficult to detect because they're so small. Moon-sized black holes, on the other hand, he says would have a measurable effect on our communications: "We certainly would notice if one passed near Earth, since it would affect the orbits of all of our satellites," Brandt told Science Alert.
Luckily, this will probably never happen. These black holes would only pass between the Earth and Sun every 100 million years or so, and would statistically take longer than the age of the Universe to pass through Earth. "Though such an event is absurdly unlikely ... It would cause some havoc," Brandt said.
"On the dark matter particle side of the spectrum, the range of possibilities is narrowing down quickly," Kashlinsky explained. "If nothing is found there, and nothing is found in the black hole theater, then we may be in a crisis of science."
Meanwhile, some physicists challenge the study, saying are not entirely sure that these microscopic black holes exists. Although there have been several reports that they do, the search to prove they exist has been more difficult than what was previously expected. Those scientists, who are seeking out ancient black holes, including Kashlinsky, think they're pretty heavy (probably between 20 and 100 times the mass of the Sun).
Supermassive black holes, like one indicated by the blue dot in the NASA X-ray image of the Andromeda Galaxy at the top of the page, are the opposite of the notion of tiny primordial black holes.
The Daily Galaxy via NASA, Science Alert, scienceworldreport, Mail OnlineMail, Business Insider
Image credits: With thanks to i.imgur.com and NASA
Spanish auteur Pedro Almodóvar's latest, his most moving and entrancing work since 2006's Volver, is a sumptuous and heartbreaking study of the viral nature of guilt, the mystery of memory and the often unendurable power of love. At times, the emotional intrigue plays more like a Hitchcock thriller than a romantic melodrama, with Alberto Iglesias's superb Herrmannesque score (the director cites Toru Takemitsu, Mahler and Alban Berg as influential) heightening the noir elements, darkening the bold splashes of red, blue and white. Three short stories from the Canadian author Alice Munro's 2004 volume Runaway provide the source material, but the spirit of Patricia Highsmith looms large as strangers on a train fuel the circling narrative (one character even observes that he is becoming a Highsmith obsessive). I was also startled to find echoes of George Sluizer's Dutch-French 1988 chiller Spoorloos in the depiction of a life defined by the disappearance of a loved one, although there is a tenderness here wholly lacking from Sluizer's altogether more unforgiving work.
Related: Pedro Almodóvar: ‘Nobody sings. There's no humour. I just wanted restraint'
Continue reading...the 40-meter diameter glass sphere produces fresh water from the sea, and provides energy to the city's electrical grid.
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