A headon collision with a planetary embryo may have changed Jupiter forever

first_imgThat’s gonna sting. Astrobiology Center, Japan NASA’s Juno spacecraft has given us unreal views of the gas giant Jupiter. But Juno isn’t just a member of the interplanetary paparazzi, it’s a fully capable cosmic lab with instruments designed to probe the mammoth planet. After taking precise measurements of Jupiter’s gravitational field, the spacecraft has discovered that the planet’s core isn’t as dense as expected.Now, scientists have proposed an almost-apocalyptic reason for this: A “planetary embryo” with 10 times more mass than Earth (and almost as much mass as Uranus) could have slammed into the largest planet in the solar system and disturbed its core. It’s not the object that whacked Jupiter last week and was captured by an amateur astronomer on Earth. This event would have taken place in the distant past, and we’re only just learning how it may have shaped Jupiter.The research, published Wednesday in the journal Nature, details a number of simulations demonstrating how a planetary embryo could have led to the uneven distribution of heavy metals we see throughout Jupiter’s gaseous envelope today. Jupiter is mostly composed of hydrogen and helium gases that move around a dense core. Scientists believed that heavy metals should be confined close to a dense core, but the Juno mission revealed that the metals are actually strewn further from the core, making it more dilute.”Jupiter’s interior models based on Juno’s data suggest Jupiter has a fuzzy core that extends to almost half of its radius, which no one has ever imagined,” says Shangfei Liu, lead author on the study and astronomer at Sun Yat-sen University in China.How could that occur? The research team’s simulations suggest the young Jupiter suffered a giant impact during its formative years, which gave rise to this weird, unexpected distribution. Originally published Aug. 14, 10:15 a.m. PT.Update, Aug. 15 at 3:57 p.m.: Adds comments from Shangfei Liu. Now playing: Watch this: 2:58 20 Photos Space geeks tweak NASA images of Jupiter’s red spot Share your voice Tags Though the collision sounds violent, it’s almost as if the young Jupiter swallowed up the planetary embryo. “A planetary embryo is a still-forming protoplanet, mostly made of rock and ice from the solar nebula,” explains Liu. The simulations show that the core of the protoplanet would have had to collide with Jupiter’s core to throw up the heavy elements and mix them throughout the entire envelope. The models show that the impact would have resulted in the internal structure discovered by NASA’s Juno and in the heavy element distribution.Other simulations demonstrate that if the smaller planet only skipped across Jupiter, the collision wouldn’t have the power to redistribute heavy metals throughout the gaseous envelope (though it would still be bad news for the baby planet).high-res-imageSlightly bruised and broken; from our head on collision. Astrobiology Center, Japan These models also offer an explanation for some of the phenomena seen in a number of easily-discoverable exoplanets, the planets that lie outside our solar system. A number of these planets, known as “hot Jupiters,” are super dense, stacked with heavy elements and orbit very close to their star. They’re also prone to giant impacts. The researchers suggest their model might explain why there are so many heavy metals in these hot Jupiters, since they get smashed by planetary embryos as they form.Could a series of small events, rather than one huge impact, give rise to the Jupiter we see today? The researchers say this needs more investigation.The work provides further evidence of the tumultuous environment of the early solar system. Previous research suggests that massive impacts shaped our moon and Earth itself. The new research even suggests Saturn may have experienced a similar impact event during its formation and another NASA probe, Cassini, famously plunged into the planet’s interior in 2017.”There are studies using Cassini’s data (especially during its grand finale) to model Saturn’s interior,” says Liu. “But Juno was designed to measure Jupiter’s gravity field, so the data is much better and models are more reliable. But Saturn’s interior is definitely worth to look at in the future.”As for Juno? The Jovian explorer has been orbiting Jupiter since 2016 and recently had its mission extended to 2022, so we can expect more revelations ahead. 2 NASA video gives a Juno’s-eye view of the approach to… Sci-Tech Commentslast_img read more

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64 rivers register rises 24 falls

first_img.Water levels in 64 river stations monitored by Flood Forecasting and Warning Centre (FFWC) have marked rises and 24 stations recorded falls, reports BSS.Among the 94 monitored water level stations, five are steady, a bulletin issued by FFWC said today.The Brahmaputra-Jamuna and Padma rivers are in steady state which may continue in next 24 hours.The Ganges river is in rising trend which may continue rising in next 72 hours.The major rivers of Upper Meghna basin in the North-Eastern region are in rising trend which may continue rising in the next 24 hours.A total of 250 mm rainfall was recorded during the last 24 hours ending at 6:00am today at Mohadevpur, 114mm at Lorergarh, 10 mm at Dinajpur, 95 mm at Narayanhat, 87 mm at Sunamganj and 75 mm at Moheshkhola, 72 mm at Teknaf, 68 mm at Barguna, 65 mm at Khulna and 59 mm at Jariajanjail.last_img read more

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Jolie hints at move into politics

first_imgAngelina Jolie arrives at the British Academy of Film and Television Awards (BAFTA) at the Royal Albert Hall in London, Britain, 18 February, 2018. Photo: ReutersAngelina Jolie hinted on Friday she could one day enter politics, as she urged global leaders to do more to help refugees and women in conflict.Asked whether she was moving towards a political career, the Hollywood star, an envoy for the U.N. refugee agency who has also campaigned on sexual violence against women, said she would “go where I’m needed”.”If you asked me 20 years ago, I would’ve laughed,” she said in an interview with British broadcaster the BBC. “I don’t know if I’m fit for politics, but then I’ve also joked that I don’t know if I have a skeleton left in my closet.”Jolie said her work with the United Nations and other organisations enabled her to “get a lot done without a title”, but did not rule out a future switch.”I honestly will do whatever I think can really make change and right now, I am able to work with a U.N. agency … to do a lot of work directly with the people in need,” she said.”I’m also able to work with governments and I’m also able to work with militaries. And so I sit in a very interesting place of being able to get a lot done without a title and without it being about myself or my policies. So for now I’ll sit quiet.”The Oscar-winning actor has in recent years visited refugee camps to highlight the plight of those uprooted by war, and broadened her international efforts to protect women, working with NATO and governments to help stop the use of rape as a weapon of war.With 68.5 million people uprooted globally, she said more needed to be done to support refugees and host communities in developing countries.”The focus should be what is happening to these people? Why is this happening? How do we have this many people uprooted and what are the causes?” Jolie said.U.N. members earlier this month adopted a deal aimed at improving the way world copes with rising migration.The non-binding pact, meant to foster cooperation on migration, was agreed in July by all 193 U.N. members except the United States, but only 164 formally signed it at the meeting.”This should not be seen as a headache for people. This is how we need our leaders to be thinking about balancing our world,” she added.VOICE FOR WOMENJolie, a mother of six who last year released her film “First They Killed My Father” about Cambodia’s Khmer Rouge regime, launched the Preventing Sexual Violence Initiative in 2012 with Britain’s former foreign minister William Hague.NATO agreed in January to help report on sexual violence in war to help bring perpetrators to justice and challenge the idea that rape is an unavoidable aspect of conflict.But there have been questions over the effectiveness of the initiative, especially in light of the mass rape of Rohingya women in Myanmar during a crackdown that forced 720,000 refugees to flee to Bangladesh.Interviewed on BBC Radio’s Today programme, which she guest edited, Jolie said the campaign had made a difference.”I have met victims who finally got reparations when they didn’t have them before,” she said. “When there are prosecutions and when there is accountability, we will see a real change.”last_img read more

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Delhi to romance Romeo and Juliet

first_imgThe show is to be presented as homage to the pioneer of Opera in India, Francis Wacziarg. Charles Gounod who composed the music of the Opera had long been interested in turning the Shakespeare play into an opera. His librettists Jules Barbier and Michel Carré purposefully chose to adhere closely to Shakespeare’s play as seen in the choral prologue which contains the words of the dialogue from the play.The opera is in five acts: The Capulets’ Ball, The Garden of Juliet, the Cell of Friar Laurence and a Street near the Capulet’s Palace, Juliet’s Room at Dawn, and Juliet’s Tomb. The cast includes Indian singers Amar Muchhala (tenor) from London as Romeo, Aude Priya (soprano) who has been a part of many other productions by TNMF, as Juliet, Vikrant Subramanian (baritone) as Mercutio, Sparsh Bajpai (soprano) as Stefano, Toshanbor Singh Nonbet (tenor) as Benvolio, Prabhat Chandola (tenor) as Tybalt, Madhav Raina Thapan (baritone) as Paris, Clifford Afonso (baritone) as Gregorio,  Ramya Roy (Mezzo Soprano) as Getrude, and visiting singers from France Paul Medioni (Bass) as Friar Laurent and Bernard Ohanian(baritone) as count Capulet.  A symphonic instrumental concert on the theme of ‘Destiny’ is also being presented on 20th March at 7.00 pm at Kamani Auditorium with the Orchestra of the Romeo & Juliet opera, joined by Indian musicians.WHEN: 18, 19, 21 MarchWHERE: Kamani Auditoriumlast_img read more

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Teacher beats up 5yrold in Joka school

first_imgKolkata: A five-year-old student of a primary school in Joka was allegedly beaten up by a teacher after she was found sitting in the classroom of her elder sister who studies in class I in the same school. The victim’s family members have lodged a complaint against the teacher at Haridevpur police station.According to the complaint, the victim, who studies in KG of Kolua Aboitonik Prathamik Vidyalaya in Joka, had gone to the classroom of her elder sister and sat beside her when tiffin break was going on. Also Read – Rain batters Kolkata, cripples normal lifeWhen Lipika Bhaduri Das, the accused teacher saw the little girl, she enquired why she had come to a class in which she does not belong. Before the girl could say anything, the teacher started beating her up with a tin ruler.She suffered injuries on her hand, feet and back and black spots were found on her body even on Tuesday.The victim’s father Vicky Ghorai who is a driver, was in Siliguri on Friday when the incident occurred. When he returned on Monday afternoon and heard the matter, he spoke with the headmistress of the school and lodged a police complaint. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedGhorai claimed that the headmistress had herself told KG students that if anybody’s guardian comes late to school after classes get over, she may go and wait in the class of her elder brother or sister if the latter studies in the same school.He further said that the teacher had earlier beaten up a physically challenged student of the same school. However, the accused teacher, who did not turn up at the school on Tuesday, denied the allegations.”I was not in school when the incident happened. I have heard the matter and will surely look into it,” headmistress Aparna Bose said.last_img read more

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Can the Market Deliver the Consolidated FinTech Tool Small Businesses Need

first_img 5 min read Register Now » Opinions expressed by Entrepreneur contributors are their own. Growing a business sometimes requires thinking outside the box. For most of us, payday is a relief. For the typical small business owner, it’s a nail-biter.In her latest book, “Fintech, Small Business & the American Dream,” Karen G. Mills, senior fellow at Harvard Business School, shares one entrepreneur’s payday struggles. In chapter eight, Mills profiles a brewery owner who isn’t sure whether she can afford to pay both her team and her vendors. Until she strings together data from dozens of apps and accounts, she doesn’t know whether her business will be in the black or red that month.If you think Mills might have cherry-picked her example, consider that 63 percent of small business owners surveyed by online lender Kabbage say they’re regularly stressed about cash flow. The problem is so persistent that more than half of them had even gone multiple months without paying themselves.Entrepreneurship is financially risky, to be fair. But the brewery owner’s struggles — scattered services, insufficient data and a lackluster user experience — are ones Mills argues the market can solve.Related: 10 Expert Tips on Managing Cash Flow as a New BusinessThree Providers, One PlatformAt present, three companies seem poised to fulfill Mills’ vision for small business leaders. Although none yet offers a one-stop fintech tool, they’ve each got a good chance of becoming one. Intuit, provider of QuickBooks, TurboTax and Mint, has the most tools but arguably the greatest challenges ahead of it. Not only do QuickBooks, TurboTax and Mint each have their own use cases, but they command loyalty from distinctly different user bases.The reason is based in Intuit’s business strategy. Since its founding in 1983, Intuit has made at least 28 acquisitions to broaden its service offerings. For online banking software, it bought Digital Insight in late 2006. The next year, it acquired Electronic Clearing House for check-processing power. That same month, it purchased Homestead Technologies for the company’s e-commerce tools. In 2009, it added online payroll processing by acquiring PayCycle.Intuit’s challenge is now consolidating all of those services and more within a single interface. Before it can truly be called the fintech platform to rule them all, Intuit needs to show it has the brand strength and UX skills to build a unified customer experience.Related: Can FinTech Really Help Small Businesses?Contemporary CompetitionThe second company working toward Mills’ dream for entrepreneurs has precisely the opposite issues of Intuit: Small business lending platform Kabbage may have mastered its niche, but it’s missing many of the peripheral financial services that small business owners need.Kabbage’s main challenge stems from the fact that it’s barely a decade old. Because it grew up in the digital era, Kabbage gives small business owners the ability to link third-party business accounts, such as Amazon sales and UPS shipping data, to be approved for funding in minutes. But because it came of age so recently, Kabbage could struggle for traction in spaces like tax preparation, business budgeting and credit card processing — areas that larger peers like Intuit are sure to fight for.What Kabbage lacks in scale, however, it may be able to make up for with its user experience. Because of its digital roots, Kabbage’s user experience beats that of many traditional banks. When UserZoom compared it to Wells Fargo, the UX researcher found that Kabbage users were 16% more successful at identifying the true cost of a 12-month loan than those who do business with the major bank.Related: How Fintech Advances Are Creating New Opportunities for Micro-BusinessesSquaring OffFounded in 2009, Square is another digital native that may fulfill Mills’ vision. Its advantages and challenges, however, are different than the ones Kabbage faces.Although Square has an app, the truth is that most small business owners see it as a point-of-sale solution. Mention Square, and most will think first about the company’s iPad-like register terminals. Despite the fact that it also offers payroll services and small business loans, Square has struggled to brand itself as more than a credit card processor.To be sure, point-of-sale and card-processing tools are critical to many small businesses, particularly those in the retail space. But at present, Square’s offerings are missing the data feeds that small business owners need. Its Square Capital page claims that application is easy, but it also notes that small business owners’ eligibility “comes down to [their] history with Square.” If Square hopes to be a one-stop platform, it needs a richer array of data feeds. Given the walled garden it’s built, that’s going to be difficult.As Mills makes clear, multiple financial firms have cobbled together pieces of her “one platform” ideal. Intuit has the breadth, Kabbage has the data and Square has the hardware to stay top of mind. Which will win? That’s a question that only small business owners can answer. May 27, 2019 Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Globallast_img read more

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This city just banned dog walking during the day

first_img By: The Associated Press This city just banned dog walking during the day << Previous PostNext Post >> Friday, November 9, 2018 Share Tags: Animals, China BEIJING — Doggone it, canines just can’t catch a break these days.A city in southwestern China has banned dog walking during the daytime and banished the pets entirely from parks, shopping centres, sports facilities and other public spaces.The ordinance issued by the city of Wenshan in Yunnan province on Oct. 29 has been called the most restrictive in a nation where dog ownership has long been subject to tight regulations.Under communist China’s founder Mao Zedong, pet ownership was considered a bourgeois affectation but it has revived over recent decades with Chinese being more affluent but having smaller families.Many cities, however, still maintain rules on what size dogs can live in what areas, with the capital Beijing banning large dogs from the city centre. Dog parks are rare and canines are almost always required to be on leash.However, Wenshan’s ban appears to go well beyond that by saying dogs can only be outside before 7 a.m. and after 10 p.m.More news:  Hotel charges Bollywood star $8.50 for two bananas and the Internet has thoughtsIt also says dog leashes cannot be longer than 1 metre (3 feet) and dogs can only be walked by adults.Despite the newfound popularity of keeping dogs, many Chinese remain wary over the presence of wild or unleashed dogs. Rabies spread by unvaccinated dogs also accounts for a substantial number of the roughly 2,000 deaths from the disease that the World Health Organization counts in China each year.last_img read more

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