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heavy nitrogen molecules reveal planetary-scale tug-of-war

nature whispers its stories in a faint molecular language, and rice university scientist laurence yeung and colleagues can finally tell one of th...




when to fish: timing matters for fish that migrate to reproduce

it's no secret that human activities affect fish, particularly those that must migrate to reproduce. years of building dams and pollutin...




mathematician's study of 'swarmalators' could direct future science

how does the japanese tree frog figure into the latest work of note...




nasa launches next-generation weather satellite

the joint polar satellite system-1 (jpss-1) lifts off on a united launch alliance delta ii rocket from vandenberg air force base, california, at 1:47 a.m. pst on november 18, 2017nasa on saturday launched a next-generation satellite into space designed to monitor weather around the world and help improve forecasts. the satellite, called the joint polar satellite system-1 (jpss-1), is a joint venture between the us space agency and the national oceanic and atmospheric administration (noaa), which provides weather reports and forecasts.the satellite was launched aboard a united launch alliance delta ii rocket as scheduled at 1:47 am (0947 gmt) from vandenberg air force base in california.it will orbit the earth 14 times each day from one...




germany bans children's smart watches with listening app

german regulators have banned certain types of smartwatches marketed to children, saying the devices have been used to listen in on school classrooms and run afoul of germany's surveillance restrictions. the bundesnetzagentur, or federal network agency, said in a statement issued friday that watches that would allow parents to "listen unnoticed to a child's environment" constitute an unauthorized transmitting system.the agency said pa...




blazing fireball lights up arctic sky

a blazing fireball lit up the dark skies of arctic finland for five seconds, giving off what scientists said was "the glow of 100 full moons" and igniting hurried attempts to find the reported meteorite. finnish experts were scrambling to calculate its trajectory and find where it landed, according to tomas kohout of the university of helsinki's physics department, who said thursday night's fireball "seems to have been one of the brightest ones."it produced a blast wave that felt like an explosion about 6:40 p.m. and could also be seen in northern norway and in russia's kola peninsula, he told the associated press on saturday.it might have weighed about 100 kilograms (220 pounds), according to nikolai kruglikov of yekaterinburg'...




breakthrough could launch organic electronics beyond cell phone screens

a discovery by an international team of researchers from princeton university, the georgia institute of technology and humbold...




un climate talks struggle to stay relevant

in addition to being out of sync with the urgency of the crisis, the un climate negotiations are also falling behind the response of cities, sub-national regions and especially businessesthere was a telling moment at the 23rd edition of un climate talks that underscored both the life-and-death stakes in the fight against global warming, and how hard it is for this belaboured forum to rise to the challenge. twelve-year-old timoci naulusala from fiji, a nation disappearing under rising seas, was delivering a testimonial to ministers and heads of state with crisp english and irresistible charm.suddenly, describing the devastation wrought by cyclone winston last year, his words became measured, his voice hushed."my home, my school –- my ...




game review: 'need for speed: payback,' wrong way

racing simulators are thriving within the genre these days, but arcade racers offer a brief respite from the tighter sim experiences and will always have a home with casual gamers. "need for speed" is a long-running series that has t...




mapping 'damage trails' lets researchers follow the water in photosystem ii

researchers at washington university in st. louis have traced the paths of three water channels in an ancient photosynthetic o...




apple pushes back release of homepod speaker to 2018

apple said friday it was delaying until early next year the release of its homepod speaker set...




mathematician's study of 'swarmalators' could direct future science

how does the japanese tree frog figure into the latest work of noted mathematician steven strogatz? as it turns out, quite prominently. "we had read about these funny frogs that hop around and croak," said strogatz, the jacob gould schurman professor of applied mathematics. "they form patterns in space and time. usually it's about reproduction. and based on how the other guy or guys are croaking, they don't want to be around another one that's croaking at the same time as they are, because they'll jam each other."strogatz and kevin o'keeffe, ph.d. '17, used the curious mating ritual of male japanese tree frogs as inspiration for their exploration of "swarmalators" - their term for systems in which both synchronization and swarming...




these ring-tailed lemurs raise a 'stink' when they flirt with potential mates

credit: devin sturgeon/university of torontoa u of t scarborough study finds that a unique ritual performed by male ring-tailed lemurs may come at a significant physical cost, but it could help their chances in securing a mate. "stink-flirting displays are done more often by dominant males," says amber walker-bolton, lead author and instructor in u of t scarborough's department of anthropology."this behaviour is also very costly because these males are met with higher levels of aggression than if they were to do other types of scent-marking, so there's definitely something unique about this type of behaviour."ring-tailed lemurs are strepsirrhinines, a sub-order of primates who share a common ancestor with humans. they are very social a...




20 years of changing seasons on earth packed into two and half minutes

from space, satellites can see earth breathe. a new nasa visualization shows 20 years of continuous observations of plant life on land and at the ocean’s surface, from september 1997 to september 2017. on land, vegetation appears on a scale from brown (low vegetation) to dark green (lots of vegetation); at the ocean surface, phytoplankton are indicated on a scale from purple (low) to yellow (high). this visualization was created with data from satellites including seawifs, and instruments including the nasa/noaa visible infrared imaging radiometer suite and the moderate resolution imaging spectroradiometer credits: nasanasa captured 20 years of changing seasons in a striking new global map of the home planet. the data visualization, ...




research shows drones could help crop management take off

unmanned aerial systems (uas), commonly referred to as drones, could help farmers determine if their crop is growing ...




experts: idaho hatchery built to save salmon is killing them

a relatively new $13.5 million hatchery intended to save snake river sockeye salmon from extinction is instead ki...




tesla's all-electric semi truck aims to disrupt transport

after shaking up the auto world with its electric cars, tesla is tackling a new frontie...




apple's smart speaker homepod may get face id: report

apple's new face id technology may ...




apple pushes back release of homepod speaker to 2018

apple's homepod connected speaker, unveiled in june, won't be available until early 2018, according to the companyapple said friday it was delaying until early next year the release of its homepod speaker set to compete with amazon's alexa-powered devices and google home as a smart home and music hub. the delay means apple will miss the key holiday shopping season in the fast-growing segment of connected speakers."we can't wait for people to experience homepod, apple's breakthrough wireless speaker for the home, but we need a little more time before it's ready for our customers," apple said in an emailed statement."we'll start shipping in the us, uk and australia in early 2018."apple announced the devi...




breakthrough could launch organic electronics beyond cell phone screens

researchers used ultraviolet light to excite molecules in a semiconductor, triggering reactions that split up and activated a dopant credit: jing wang and xin lina discovery by an international team of researchers from princeton university, the georgia institute of technology and humboldt university in berlin points the way to more widespread use of an advanced technology generally known as organic electronics. the research, published nov. 13 in the journal nature materials, focuses on organic semiconductors, a class of materials prized for their applications in emerging technologies such as flexible electronics, solar energy conversion, and high-quality color displays for smartphones and televisions. in the short term, the advance shoul...