Echoing mixed-path whistlers near the dawn plasmapause, observed by direction-finding receivers at two Antarctic stations

first_imgDuct coupling, in which part of the energy of a downcoming whistler-mode wave becomes trapped in a different duct after upward reflection in the ionosphere, manifests itself in the phenomenon of the mixed-path whistler. Using VLF data from direction-finding receivers at Halley and Palmer stations, Antarctica, we analyse a case near dawn in which the path structure was particularly simple. One-hop and three-hop whistlers observed at both stations implied the existence of two ducts inside the plasmasphere (at L ~ 3) and of wave coupling between them. The most intense of the three-hop echoes was a mixed-path rather than a single-path component; this is explained in terms of bi-directional coupling between the ducts in both northern and southern conjugate ionospheres. The locations of the ionospheric exit points for signals leaving the ducts were found from whistler arrival bearings measured at the two stations (the first results of crossed bearings from the IMS Antarctic VLF observing programme); these points were about 300 km apart. An echo trace seen only on the Halley record implied coupling to a third path outside the plasmapause (at Lpp ≅ 3.3). We discuss the significance of such path coupling in relation to the spreading of ducted and unducted wave energy in the magnetosphere, and to the triggering of chorus.last_img read more

Fresh off Olympic glory, Chloe Kim says she hopes to use her platform to fight bullying

first_img Beau Lund FacebookTwitterLinkedInEmailRobby Klein/ESPN Images(NEW  YORK) — Chloe Kim, who became a household name last month when she took home gold for Team USA at the Winter Olympics, said her favorite part about her overnight rise to fame has been the free food.But she also hopes to use her platform to fight bullying, something she faced growing up.In an interview with ESPNW’s Cari Champion, Kim, the youngest woman to win an Olympic snowboarding medal, revealed that she’s just like any other American teen, saying her hobbies include “shopping” and “going to the mall.”“I won’t leave the house without my eyeliner,” the 17-year-old Los Angeles native added.Kim ‘got a better understanding of who I was’ at the OlympicsThe daughter of Korean immigrants to the U.S., Kim said winning gold in her parent’s homeland this winter took on extra meaning because of all of the sacrifices her family made for her to get there.“My parents sacrificed so much, I think it was so important for me to like go out there and just do good, and show them … that all of our hard work as a family really did pay off,” she said. “I put a lot of pressure on myself, and I definitely didn’t want to disappoint.”Kim added that “the biggest thing that I took away from the Olympics,” was that she “got a better understanding of who I was.”The teen said it was “an honor” to represent two countries, including “Korea, being the country where my family came from and where they spent their lives growing up, and now America, where I grew up.”“It’s such a big cultural difference as well,” she said. “Being able to represent both is such a privilege.”Many have dubbed Kim’s road to Olympic glory the realization of her parent’s American Dream.“I always struggled with my identity growing up,” Kim said. “My parents came, immigrated to America in like the 1980’s or something … They kind of struggled with criticism a lot because back then it was sort of a new concept, diversity.”“But me, just growing up in America, being born and raised in California, it was a little harder for me — just trying to understand who I was and where I fit in,” she added.Kim said that when she was 8 she moved to Switzerland and “was the only Asian girl at the school.”While at school, “Everyone was like, ‘Where are you from like … What are you?’” she said. “I would be like, ‘I’m a Cali girl, I’m from L.A.’ I got bullied a lot, especially for my eyes.”“The funny thing is, in Switzerland, once I told them I lived in L.A., I was, like, popular,” she quipped. “They were like, ‘She lives in Los Angeles, that’s where Paris Hilton lives.’”Winning Olympic gold felt like ‘part of my destiny’Kim said that while she is usually nervous before most competitions, she felt calm at her first Olympics.“I really felt like it was part of my destiny, in a way,” she said of winning gold. “’cause I get so nervous during competitions … and I have to go to the bathroom when I get nervous, so I’m always running back and forth to the port-a-potties.”“But at the Olympics,” she added, “I didn’t feel any of that. I felt so calm.”The teen described the feeling she had before competing as “at peace” or “the same feelings I get when I’m in like a fuzzy poncho, like ready to watch some T.V. and possibly fall asleep.”While the noise and excitement at the Olympic Village was “hectic,” Kim said was most comfortable on the halfpipe.“I was like, ‘I’m here, I know how to do this, this is something that I’m familiar with,’” she said.Kim’s ‘favorite thing’ about newfound fame is ‘everyone’s just giving me food’Kim, who tweeted about her love for ice cream and churros mid-competition in Pyeongchang, and often posts photos of her favorite foods on social media, said she’s a big foodie.“I have an excuse,” she said of her love for eating. “I’m, like, a winter athlete, so it’s, like, you know, there is like a summer bod and then a winter bod.”“A lot of animals, for the winter, they like eat a lot of food to, like, stay warm, so I kind of go with that same mindset,” she added.Kim said her “favorite thing about everything” since her overnight rise to fame, “is that I’ll say I like something, and then people will send them to me in mass stocks.”“I got so many churros sent to my house,” she said. “It’s like everyone’s just giving me food.”Another perk of her newfound fame is that she is currently “looking at promposals.”“I think I’m going to go to prom with a fan,” she added.Kim, who turns 18 next month, said her ideal birthday does not include a big party.“My team will always call me the laziest Olympian,” Kim said. “So, like, going out, or, like, throwing a big party to me, is just, like, too much work.”She said she’d rather stay home and buy a cake and hopefully eat the whole thing “and then go to bed.”Once bullied, Kim hopes to use her platform to combat bullyingKim said she is “really thankful” that she has been given a “voice” through her Olympic victory.“I grew up with a lot of bullying,” she said. “I feel like some kids are very mean, like, even now, some of my hate comments will be from 10-year-old kids. It’s like, how do you know how to say that?”It’s important to understand the true impact words can have, Kim said, “and how … hurtful it really can be.”“It’s so sad,” she added. “So many kids have taken their lives, or are hurting themselves because of bullying. And they don’t see the joys in life.”‘Inspired’ by her peersKim said she was “inspired” by the activism she witnessed from people her own age this weekend at the “March for Our Lives” event in Washington, D.C., and at similar rallies throughout the U.S.“My peers started that march … they all came together and used their voices to make an impact,” she said. “I think it’s so amazing that our generation is able to do those things.”Copyright © 2018, ABC Radio. All rights reserved. March 27, 2018 /Sports News – National Fresh off Olympic glory, Chloe Kim says she hopes to use her platform to fight bullyingcenter_img Written bylast_img read more

Guardiola sets target for Jesus after brace against Everton

first_img Loading… FacebookTwitterWhatsAppEmail分享 Brazil striker Jesus now has 13 goals this season but Guardiola – who kept first-choice striker Sergio Aguero on the bench – demanded more from the 22-year-old. “He’s a young player, but the way he defended and fought was good,” said Guardiola. “He has to improve and he knows that, but every day he gets better and better. Pep Guardiola said he wants more from Gabriel Jesus – despite the striker’s match-winning double. Jesus scored twice in seven minutes to give Manchester City a hard-fought win that kept them within a point of second-placed Leicester. Promoted Content7 Things That Actually Ruin Your PhoneSome Impressive And Almost Shocking Robots That ExistWho Is The Most Powerful Woman On Earth?10 Risky Jobs Some Women DoHere Are The Top 10 Tiniest Mobile Phones On The Planet!9 Iconic Roles That Got Rejected By World Famous ActorsWhat Are The Chances Of An Apocalypse Happening This Century?Can Playing Too Many Video Games Hurt Your Body?Birds Enjoy Living In A Gallery Space Created For Them7 Universities In The World Where Education Costs Too Much7 Black Hole Facts That Will Change Your View Of The Universe6 Interesting Ways To Make Money With A Dronecenter_img Read Also: Ex-Man City star involved in car crash on New Year’s Day “I’m so delighted about the performance,” said Guardiola. “Being far away from first position, after being champions for the previous two seasons, teams in normal situations give up and can finish seventh or eighth in the table. “Maybe we’re going to finish seventh or eighth in the table, but not because we don’t try. We played so good.” “Sergio is irreplaceable for our fans, for this club, for the best moment in the history of this club, so it’s difficult [for Jesus]. “Sergio’s got one more year here and we need good back-ups. But Sergio and Gabriel have an incredible relationship, they are really good.” Despite trailing leaders Liverpool by 11 points and with a third straight title out of reach, Guardiola wants his players to scrap for every point until the end of the season. “What he’s shown so far in the period he’s here, he’s had ups and downs with his age and with injuries, but he’s been excellent.last_img read more

Test pitches in India are boring and Favour Batsmen: Michael Vaughan

first_imgNew Delhi: Former England skipper Michael Vaughan has slammed the cricket pitches in India, saying the tracks are “boring” and are more in favour of the batsmen. “Test match cricket pitches in India are boring…The first 3/4 days the contest is far too in favour of the bat…needs more action for the bowler…My thought of the day …,” Vaughan tweeted on Friday.His comments came during the ongoing second Test between India and South Africa being played at the Maharashtra Cricket Association (MCA) Stadium in Pune where the Indian batters have dominated the proceedings. Skipper Virat Kohli and Mayank Agarwal scored brilliant hundreds and have taken the hosts to a commanding position.Even in the first Test, the Indian batsmen had a great time at the ACA-VDCA Stadium in Visakhapatnam. While Mayank scored a double hundred, Rohit Sharma — in his debut match as an opener in red-ball cricket — scored hundreds in both the innings in the game which India won by 203 runs. IANSAlso Read: Jasprit Bumrah shares motivational post on social mediaAlso Watch:All Assam Bengali Youth Students’ Federation in Biswanath demands error-free NRClast_img read more