WASHINGTON puma rihanna nere , May 12 (Xinhua) -- Mysterious dark material on the surface of Jupiter's moon Europa is likely sea salt from a subsurface ocean, darkened by exposure to radiation, researchers from the U.S. space agency NASA suggested Tuesday.


For more than a decade, scientists have wondered about the nature of the dark material that coats long puma rihanna bianche , linear fractures and other relatively young geological features on Europa's surface.


Its association with young terrains suggests the material has erupted from within Europa, but with limited data available, the material's chemical composition has remained elusive.


To identify the dark material, researchers at NASA's Jet Propulsion Laboratory created a lab setup that mimics conditions on Europa's surface in terms of temperature puma rihanna rosa , pressure and radiation exposure.


For this study, the researchers tested samples of common salt -- sodium chloride -- along with mixtures of salt and water, in their vacuum chamber in accordance with Europa's chilly surface temperature of minus 280 degrees Fahrenheit (minus 173 degrees Celsius).


They then bombarded the salty samples with an electron beam to simulate the intense radiation on the moon's surface.


After several days of exposure to this harsh environment, which corresponds to as long as a century on Europa nike air max plus nere , the salt samples' color turned from white to yellowish-brown, which is similar to features on the icy moon.


Additionally, the longer the samples were exposed to radiation, the darker the resulting color air max tn bianche , they found.


"The presence of sea salt on Europa's surface suggests the ocean is interacting with its rocky seafloor -- an important consideration in determining whether the icy moon could support life," NASA said in a statement.


The study was published online in the U.S. journal Geophysical Research Letters.


HELSINKI, May 25 (Xinhua) -- A fire caused by an unplugged mobile charger destroyed a house in Finland in 2013, and then triggered an invention that can prevent such tragedy from happening again.


The newly invented ASMO mobile gadget charger can shut off automatically when the gadget is no longer connected to it air max tn nere , Finnish national radio Yle reported on Monday.


The charger has been ready for production, and the Finnish developers said their product was the first of its kind worldwide.


Chargers warm up and reach high temperatures and thus can cause a fire. The new ASMO charger will eliminate the fire hazard when the charger remains plugged, said the report.


The name of the new product is the first name of its main designer Asmo Saloranta. He got the idea in the wake of a fire where a charger that had not been unplugged damaged the childhood home of his fiance in Oulu, northern Finland.


The prototype was produced in 2014 and got a patent. Saloranta told Finnish national radio Yle that orders were being awaited.

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SUVA air max classic bw uomo , Oct. 1 (Xinhua) -- Fiji's new sevens rugby coach Ben Ryan arrived in the Pacific island country on Tuesday and is ready to kick off work at Suva's Rugby House.


Ryan arrived at the Nadi International Airport with his wife on Tuesday afternoon before being escorted by Fijian referee Patrick Gock.


With little to say to the media, Ryan has previously made his stance clear on the plans he has for Fiji sevens rugby.


""I certainly won't be looking to change the overall philosophy of how they play the game in the islands. But I think I can add some professionalism,"" Ryan said earlier.


""I think I can help them with one or two things on the field that will mean that they can leak less points and score more points on the other end and at the same time we just need to be more consistent. They have an amazing amount of an array of talent in the islands.""


""And it's just making sure now that what goes in place the foundations are stronger, more stable and everyone is aligned because no doubt the sporting world could get inspired by the journey of the Fijians sevens team over the next few years towards the Rio Olympics air max flair bianche ,"" Ryan added.


Ryan will most likely meet up with the national squad this week as the side prepares for the Fiji Water Centennial International sevens, according to the government-owned Fiji Broadcasting Corporation.


The Fiji Times newspaper reported that the Fiji Rugby Union (FRU) is optimistic of the International Rugby Union's support in helping fund the pay for the newly-appointed coach.


The former England sevens coach, who has been appointed to guide the Fiji sevens team for three years, is likely to be paid a substantial amount for his services.


FRU chairman Filimone Waqabaca said consultations between Rugby House and the international body was ongoing.

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