http://www.techtimes.com/articles/154785/20160429/massive-lake-discovered-beneath-antarctic-ice-may-be-teeming-with-life.htm

Massive Lake Discovered Beneath Antarctic Ice May Be Teeming With Life

These are exciting times to study Antarctica and zero in on what possibly lies beneath its thick ice. A massive lake discovered barely a decade ago, for instance, may be filled with hidden life.

Three separate studies from institutions across the United States offered a fresh first look into the biology and geophysics of subglacial Lake Whillans, which lies 2,600 feet beneath the West Antarctic Ice Sheet.

Back in 2013, an American team drilled into the sliver of water about 7 feet deep, finding microbial life whose density compares to that of the world’s deep oceans with a rich bacteria and archaea population that’s at least 4,000 species strong.

Now, the three separate bodies of research point to a wetland-resembling area beneath the ice, with tiny amounts of seawater emerging from ancient marine matter on the lakebed. Their findings are hoped to help analyze the role of subglacial lakes in water flow from the continent to the ocean — and therefore to sea-level rises.

“It is amazing to think that we did not know that this lake even existed until a decade ago,” said Helen Amanda Fricker of Scripps Oceanography, who discovered Lake Whillans in 2007 from satellite data. “[T]hese new data are helping us understand how lakes function as part of the ice-sheet system.”

Findings On Lake Whillans

Using an array of methods to probe the subglacial system’s dynamics, the three recent papers highlight exciting findings.

The Scripps Oceanography team led by Matthew Siegfried reported in Geophysical Research Letters that GPS data collected in the span of five years indicate that the lake’s periodic drainage can raise velocity at the ice sheet’s base and accelerate ice movement by up to 4 percent in certain bursts, each lasting for several months. These short-term phenomena, the authors suggested, can help scientists better predict upcoming, long-term ice sheet changes.

In the paper published in the journal Geology, Montana State University researchers used data from a 15-inch-long core of lake sediment to describe the chemistry of water in the lake as well as its sediments. Results showed that lake water emerges from melting at the ice sheet base enveloping the lake, with some parts from seawater trapped in sediments lying under the ice sheet when the Antarctic ice retreated during the last interglacial era.

The discovery of an ancient and isolated ocean water reservoir affecting the subglacial lake’s biogeochemistry opposes previous studies from nearby ice streams, which showed no “discernible marine signature” in water obtained from sediments.

The third paper discussed in Earth and Planetary Science Letters investigated sediments from the lake to know their relationship with the ice sheet and subglacial water, demonstrating that although floods occasionally invade the lake, the flow isn’t strong enough to erode expansive drainage channels.

Instead, the habitat underneath is likened to wetlands within coastal plains, where water bodies are likely shallow, broad and with gradual water flow.

Subglacial Lake Research

The 2013 drilling of Lake Whillans through the Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) project retrieved water and sedimentary samples using a customized and clean hot-water drill, which prevents contamination of the pristine setting. It was nothing short of fascinating, as the body of water had been isolated from direct atmospheric contact for thousands of years.

This was unlike the 2012 project of Russian scientists who bore into Lake Vostok, which has been ice-covered for 15 million years. Their claims of finding evidence of life in the lake were met with skepticism due to the water samples unfortunately getting tainted by the fluid used in the drilling.

Science continues to unearth life in isolated water untouched by sunlight, such as two years ago when a team deploying a remotely operated vehicle spotted a species of translucent fish and some tiny crustaceans.

It remains exactly unknown how life was sustained in those areas or where the nutrients come from, but it is speculated by the ecosystems are fed by a certain chemosynthesis where microbes feed on minerals descending from the ice above or seeping through the sediments below.

Proving the existence of Antarctic lakes is seen to boost research on the continent, whose biodiversity is deemed as rich and complex as the deep oceans. A new lake being targeted for exploration, for instance, is far easier to study than Vostok or other remote bodies, as it is located only 100 kilometers (62 miles) from the closest research station

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http://www.macrumors.com/2016/04/29/apple-watch-windows-95/

Developer Gets Apple Watch to Run Windows 95

After developer Nick Lee realized that the Apple Watch‘s 520 MHz processor, 512 MB of RAM and 8 GB of internal storage made it more powerful than many desktops running Windows 95 in the 1990s, he felt confident he could get it to run Microsoft’s successful operating system.

applewatchwindows95

Photo via Nick Lee
To get Windows 95 to run on the Apple Watch, Lee knew he couldn’t rely on Apple’s WatchKit SDK because it doesn’t allow developers to directly access user touch locations. Instead, the SDK forces developers to use Apple’s stock controls. So Lee had to patch certain files within a WatchKit app to load his own app code rather than Apple’s. Lee tellsMacRumors the process, which puts an x86 emulator into a self-contained Watch app, essentially turned Windows 95 into an an app.

Once Windows 95 was loaded onto the Apple Watch, the booting process took an hour because it’s being emulated rather than virtualized. Lee also had to attach a straw to a small motor that nudged the Digital Crown periodically to keep the Watch awake. Once the Watch is all booted up and ready, users can control the mouse with their finger. However, because the emulation is so slow, Lee told MacRumors that “it only registers a few pixels per movement on the screen.” To combat the lack of speed users can queue up commands by rapidly swiping on the display.

The Watch can be seen booting up and running Windows 95 in the video above, and Lee goes into further detail about the process in his Medium post.

http://news.ubc.ca/2016/04/29/dogs-in-therapy/

Dogs in therapy

More media outlets reported on an informal survey of dog behaviour by UBC canine expert Stanley Coren. In a blog post for Psychology Today, Coren said a hug could restrict a dog’s ability to move and therefore stress out the animal.

Coren examined photos of people hugging their dogs online and found that eight out of every 10 photos suggested that the dogs were anxious or uncomfortable with being hugged.

The story appeared in the Guardian (UK), TIME, Boston Globe, CBC News, Ottawa Citizen and Vancouver Sun.

http://www.ctvnews.ca/health/learning-a-language-can-boost-mental-agility-in-just-one-week-1.2880171

Learning a language can boost mental agility in just one week

Learning a language can boost mental agility in just one weekIntensive language learning can boost students’ attention spans.

A new study has found that just one-week of an intensive language learning course is enough to boost students’ attention spans.

Researchers from the University of Edinburgh compared a group of 33 students aged 18 and 78, who were taking part in a one-week Scottish Gaelic course, with 16 other students who were taking part in a comparable course, but not learning a language.

Their attention levels were measured using listening tests, which assessed each participant’s ability to concentrate on certain sounds and switch their attention to focus on relevant information.

The team found that both groups who completed the one-week courses showed improvements in their attention levels, but it was only those in the language group who showed significant improvements when compared to a control group who had completed no course at all.

And it didn’t matter what age the participants were when they started learning the language. Improvements were found in all participants aged 18 to 78, showing that even if you think you are too old to start, language learning can boost mental agility even later in life.

The team also found that not only did these improvements occur after just one week, but they could also be maintained with regular practice, with those who practiced for five hours or more per week still showing improved attention levels nine months after the initial language learning course.

However, those who practiced for four or less hours each week showed more inconsistent results. While some participants showed improvements in their attention spans, others stayed the same or even deteriorated.

Prof. Boyd Robertson, Principal of the College attended by the participants in the study, commented that previous feedback on the course had already shown the social benefits of the language course, with the study’s lead researcher, Dr. Thomas Bak, adding that these new results now also confirm the cognitive benefits of language learning.

Dr. Bak also concluded that, “I think there are three important messages from our study: firstly, it is never too late to start a novel mental activity such as learning a new language. Secondly, even a short intensive course can show beneficial effects on some cognitive functions. Thirdly, this effect can be maintained through practice.”

The results were published in the journal PLOS ONE.

http://chollywood.info/samsungs-artik-10-will-ship-next-month/

Samsung Artik 10 Will challenge Raspberry Pi and avail in Next Month – Pricing, Specifications

The Raspberry Pi 3 competitor is soon debuting in the market.Samsung’s Artik 10, which is the Raspberry Pi 3 competitor is readyto go for sale in next month. The Samsung is ready to start shippingit to customers from Next Month. The Artik 10 is the little computeralternative, just like Raspberry Pi.

The Samsung Officials said that the Artik 10 will be available atOnline retailer, Digi-Key in the first week of May. The Artik 10 ispowered by the 8-core 32Bit ARM Processor, which seems outdatedif we look at the processing power of 64Bit Quad-core ARMProcessor, which is available on Raspberry Pi 3 board. On the Graphics processing side, the Artik 10 ison the higher side. It comes with Mali T628 MP6 Graphics processor, which can HD Videos at 120Frames Per Second.

The Artik 10 has old processor architecture, but it has 16GB Onboard Flash Storage and 2GB ofLPDDR3 RAM, which is still higher than the Raspberry Pi 3. For connectivity, it comes with USB portsand other expansion ports for Sensors, camera, display and other necessary components. The Artik 10also has wireless connectivity options like Wi-Fi, Bluetooth, and Zigbee. The pricing of the SamsungArtik 10 may cross the Raspberry Pi 3 price. The expected cost of this Smart Computer Board can bemore than $100.

http://bgr.com/2016/04/29/tesla-model-3-ugly-design/

Hidden design details that will make you want Tesla’s Model 3 even more

Hundreds of thousands of Tesla fans have been throwing money at the company tobuy its cheapest electric car yet, securing their place in line to purchase the Model3. Many of them preordered the car even before Tesla revealed its design andspecs. In the meantime, almost everything is known about the Model 3 at this point,but a new report reveals hidden design details that might make Tesla’s new Model3 one of the best electric cars money can buy in any price range. At least, for thetime being.

Tesla’s Model 3 has to have a smaller battery to be more affordable than othermodels, but that doesn’t mean it’ll have reduced range. Tesla already said thatModel 3 should be able to travel over 215 miles on a single charge of a batterythat’s smaller than 60 kWh. How is it possible? Aerodynamics.

Elon Musk also said that Model 3 will have a 0.21 Cd drag coefficient, which wouldmake the car the most aerodynamic mass production car ever made, according toElectrek.

Tesla’s Model S and Model X already achieved the lowest drag coefficients in theirrespective segments, but Model 3 will be even better. How is that possible? Exa’svice president of ground transportation application Ales Alajbegovic speculated onthe aerodynamic design of Model 3, suggesting that certain design lines – like thatugly grille – are intentional choices meant to reduce drag.

Tesla is rumored to use Exa’s digital simulation tool to develop its cars, but Exadoesn’t have access to results of those tests.

“Tesla uses Exa’s PowerFLOW digital simulation software in-house to design itscars,” the exec said. “We don’t see the process, but by analyzing the cars that Muskunveiled at the end of March, we can see where Tesla has innovated.”

He then explained that some of the design lines Tesla used in wheels and grille areall backed up by aerodynamics principles intended to make the car more efficient.These design tricks might make the Model 3 appear “ugly” when compared toother cars, but they’re key to making sure the car can offer incredible range in spiteof a smaller battery.

“The differing turbine-blade styling not only comes across as fresh and appealing,but it also directs the flow of the air under the body of the car to reduce drag,”Alajbegovic said about the wheels. “That’s smart. Tesla could have used an activeaero solution that closed the vanes on the wheels at speed, but they chose not to. Infact, it appears there are no active aero devices on the Model 3, which reduces thecost of making it.”

He then went on to explain the grille shape.

“Here only the shape remains. A more wedged front end, such as used by rear-engined Porsches, might well be more desirable aerodynamically, but Tesla couldbe using the grille shape with its rounded edges to control the air flow over the topor round the sides of the car,” Alajbegovic said.

He continued, “The Model 3 also employs air curtains in the lower fender that exitahead of the front tires to provide a drag-reducing air stream over the wheels,while helping the flow transition smoothly around the sides of the vehicle,” he said.“The underbody is likely to be flat and smooth, ending with a rear diffuser to controlthe air coming from under the car.”

How important is aerodynamics? The exec said that by reducing drag from 0.32 to0.24 – which seems like a minimal improvement – Tesla managed to increase therange by 50 miles.

So, before you complain about the Model 3’s design, best remember that thecompany may have compromised on style so that you can afford to purchase a carthat drives for more than 200 miles on a charge. Knowing how much skill andexpertise went into these design elements makes you wonder what other surprisesare in store, and it might make you want Tesla’s Model 3 even more.