David Robertss Overworked Bullpen Is A Bad Omen For The Dodgers

Of the five teams who leaned on their bullpen most in the series since 2000, three went on to lose, and the Dodgers’ fate is still undecided. Only the 2002 Anaheim Angels came back, and they faced an opponent (in the San Francisco Giants) who employed their relievers even more frequently.That’s not to say that reliever usage is a death sentence. Oftentimes, it simply reflects poor starting pitching: Each of the teams who used their starters less than the Dodgers saw them give up more than a dozen runs. This underscores how unusual Roberts’s reliever usage has been because his starters, comparatively, have been quite good. Aside from Darvish’s clunker last night, the Dodgers had two of the best starts for their length in World Series history, from Clayton Kershaw and Rich Hill. If Roberts had allowed them to go deeper into games when they were dealing, the bullpen might be fresh now.Roberts didn’t help matters when he used his bullpen aggressively Friday night, attempting to keep Houston within striking distance. In total, the Dodgers manager called on five different relievers to end the game, and only one — Kenta Maeda — went longer than 2 innings. Combined with the workload from the previous two games, key relievers have been pitching almost as much as the starters. So far, Maeda has pitched 4 innings this series, and Brandon Morrow, the crucial bridge to closer Kenley Jansen, has pitched 2 2/3 innings as well. Jansen himself has pitched 3 full innings.But as ESPN’s Sam Miller pointed out, if the Dodgers had managed to come back, Roberts’s tactics would have been hailed as strategically brilliant. Like many other postseason managerial moves, the aggressive reliever usage is easy to criticize in hindsight but much harder to argue with in the moment. It might have been a good bet that failed to pay out, but the strategy still leaves the Dodgers depleted of bullpen arms at the time when they need them most. In contrast, Houston manager A.J. Hinch relied on only two pitchers to carry the Astros to victory: starter Lance McCullers and starter-turned-reliever Brad Peacock. Despite running into some high-leverage jams, they managed to hold a powerful Dodgers lineup to only three runs. Like Roberts’ decision, keeping McCullers in the game in the third inning with the bases loaded was a gamble. But Hinch’s call managed to pay off when Dodgers shortstop Corey Seager hit into an uncharacteristic double play.The Astros’ win leaves them with a 67 percent chance of taking the World Series. That’s far higher than our opening prediction, but it comes almost entirely from the two victories they’ve edged out over the Dodgers. The remaining games are all coin-flip affairs, so the importance of that extra win in an evenly divided series can’t be overstated. That it came down to two managerial decisions that might have gone either way speaks to how balanced this matchup is. Had one or two pitches gone differently, the Dodgers might be in a commanding position right now, instead of fighting to tie the Series. LA is taxing its bullpenTeams with the fewest innings pitched by starters in the first three games of the World Series, 2000-17 Angels200212.713 Source: Baseball-Reference.com Rockies200711.314 TEAMYEARINNINGSRUNS ALLOWED Dodgers201712.76 Cardinals200411.315 Giants200211.016 A poor start from Yu Darvish hurt the Dodgers early on Friday, and they never mounted a comeback. With the Astros now riding a 2-1 lead and two games left in Houston, the Dodgers are in trouble. In addition to their deficit, a pattern of heavy reliever usage might leave them understaffed in the remaining World Series games.Darvish didn’t have his best stuff Friday night. Despite impressive fastball velocity, his slider was unusually flat. Houston pounced on the normally dominant ace in the second inning, gaining a four-run lead. From then on, the Dodgers attempted to build a handful of unsuccessful rallies but only managed to score three runs.Darvish’s bad outing adds to two other shorter-than-necessary starts for Los Angeles and might leave the bullpen tired in the next two pivotal games in Houston. Even if the relievers were fine Friday, the pattern of short starts is a poor omen for the Dodgers. read more

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47 Properties Sold In Wilmington In July

first_imgWILMINGTON, MA — According to the Middlesex North Registry of Deeds, 47 properties were sold in Wilmington during July 2018:Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email wilmingtonapple@gmail.com.Share this:TwitterFacebookLike this:Like Loading… Related42 Properties Sold In Wilmington In JulyIn “Business”40 Properties Sold In Wilmington In AugustIn “Business”44 Properties Sold In Wilmington In JuneIn “Business”last_img read more

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PIC Aashka Goradia takes to nude yoga says female form should be

first_imgInstagramIt is no secret that Aashka Goradia and husband Brett Goble love leading a healthy and fit lifestyle with yoga and healing. Aashka recently took to Instagram to share a beautiful photo of herself striking a wonderful yoga pose. Talking about how women should break open from the shackles of body shaming, she wrote, “A new paradigm is shifting in our collective psyche. Stale mentalities are starting to whither and rightfully die. Necessary for an evolving society. . Exhaustingly and hypocritically, we as a society look down at broad displays of the female form as it appears in the moment. On screen, completely accepted (pending the budget of such displays crosses a certain 7-figure total). And the male form, no issue there – the more muscles, the better. But the female form…this angle of the topic is still being strangled to death by the perspectives of generations before us. The old diatribe of “Pura pheno, log kya kehenge?!” [Cover up. What will people say?] is still muttered in every household. . We have the Sari – of the most enchanting styles of garment in the world. The midriff blouse, highlighting the soft curves of a woman’s figure, is revered. It’s traditional! Conservative, you can say! But a bikini – oh no…baring a woman’s legs AND her stomach…”oh no,…too much.” And don’t even think of insinuating toplessness! . Thankfully, this toxic mindset is being swept back to the sea of history like the 5pm high tide. People are catching wise to social codes once accepted without question. “Why did we need to cover up?” Because men get ideas! Because men start thinking dirty thoughts! Because boys only think about one thing! . So I have to stifle my expression, my creativity, my art, because others have a problem. No, enough. I’m done with that. And you should be too. . On the very walls of our beloved Khajuraho Temple, or extremely popular museums, hundreds of graphic sexual scenarios can be seen by young and old. It’s woven into our culture. Yet it’s acceptance goes only as far as the grounds it lays on, charging a nominal fee to catch a glimpse. Then we depart, back to the world of “how a good Indian daughter behaves.” . The female form is the most beautiful of God’s creation. It is the vehicle to create life itself. Its expression should be celebrated. Not covered up.”last_img read more

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Hulu is set to move into eSports for the first tim

Hulu is set to move into eSports for the first time after agreeing a deal with ESL bring new gaming-themed series to the streaming platform.ESL will develop and produce four new eSports series that will premiere on Hulu later this autumn – Player v. Player, Bootcamp, Defining Moments and ESL Replay.These will look at various aspects of eSports, including training and preparation, news and industry trends, and coverage of ESL’s tournaments.“eSports is one of the fastest growing areas of media and entertainment, and, through this first-of-its-kind deal with ESL, we can now bring the popular world of eSports to Hulu,” said Lisa Holme, vice president of content acquisition, Hulu.“We know our viewers, especially those watching Hulu on consoles, are hungry for this type of content – so we’re excited to offer it on Hulu for the first time.”Of the new series, Player v. Player is a “gamified debate show” in which panellists discuss eSports topics, while Bootcamp is a weekly docu-series following a top Counter-Strike: Global Offensive team called The Immortals.Defining Moments explores “the most impactful moments” in eSports history, and finally ESL Replay is a highlights show covering the biggest multi-day eSports tournaments globally.“The partnership with Hulu marks ESL’s first original series on an on-demand streaming service, and will showcase the diverse nature of eSports through high quality storytelling,” said Nik Adams, senior vice president of global media rights and distribution, ESL.“eSports appeals to a younger, more digitally savvy audience so Hulu is a perfect platform to build out our original content and expose the world of eSports to new audiences.”ESL is one of the world’s biggest eSports brands and runs leagues like ESL Pro League and events such as ESL One and Intel Extreme Masters. MTG took a 74% stake in ESL’s parent company Turtle Entertainment in 2015.For more about eSports and the TV industry, see DTVE’s recent feature ‘TV plays the millennial game’. read more

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first_imgSponsor Advertisement Drilling Intersects 102 Meters of 1.97 gpt Gold at Columbus Gold’s Paul Isnard Gold Project; Drilling Confirms Depth Extension of Gold MineralizationColumbus Gold Corporation (CGT: TSX-V) (“Columbus Gold”) is pleased to announce results of the initial five (5) core drill holes at its Paul Isnard gold project in French Guiana. The holes confirm depth extension of gold mineralization below shallow holes drilled on the 43-101 compliant 1.9 million ounce Montagne d’Or inferred gold deposit at Paul Isnard in the 1990’s and support the current program of resource expansion through offsetting open-ended gold mineralization indicated by the earlier holes.Robert Giustra, CEO of Columbus Gold, commented: “These drill results validate Columbus Gold’s approach to adding ounces with a lower-risk drilling program designed to infill and to extend the mineralized zones to 200 m vertical depth from surface; a depth amenable to open pit mining.”  Fourteen (14) holes have been completed (assays pending) by Columbus Gold in the current program and drilling is progressing at the rate of about 3,000 meters per month with one drill-rig on a 24 hour basis. Columbus Gold plans to accelerate the current program by engaging a second drill-rig as soon as one can be obtained. Please visit our website for more information about the project. (Click on image to enlarge)center_img It’s obvious that these rallies are not going unopposed, so it appears that JPMorgan et al are once again stepping in as sellers of last resort.With London shut for the second day in a row…Spring Bank Holiday on Monday…and on Tuesday “so peasants can celebrate their 60 years of serfdom commonly being promoted as the Queen’s Jubilee.” as U.K. reader Tariq Khan said in an e-mail to me yesterday…it was another quiet day in the gold market.Gold traded within five bucks of $1,617.50 all day long.  Net volume was very light at 91,000 contracts…and gold closed in New York at $1,616.90 spot…down $1.40 from Monday.  Nothing to see here, folks.The silver price wandered around the $28.20 spot price mark for many hours before New York opened.  The low of the day [around $28.10 spot] came shortly before 10:00 a.m. London time…and then rallied quietly from there…closing in New York almost on its high of the day.Silver finished at $28.53 spot…up 27 cents.  Net volume was a very light 24,000 contracts.The dollar index fell to its low of the day [82.31] shortly after trading began in the Far East on their Tuesday morning…and then about 3:00 p.m. in Hong Kong it began to rally…and by 10:00 a.m. London time it was up to the 82.90 mark, where it stayed until 1:00 p.m. in New York.  Then it weakened a hair into the close.  The dollar index closed up about 25 basis points from Monday.The gold stocks opened about unchanged…and then flopped around for a bit before making it into the plus column permanently around half-past lunchtime.  The HUI finished up 0.62% on the day.The silver stocks did pretty well for themselves, too…and Nick Laird’s Silver Sentiment Index was up 1.28%(Click on image to enlarge)It was another quiet Daily Delivery Report from the CME yesterday, as they reported only 30 gold contracts posted for delivery on Thursday.There were no reported changes in the GLD ETF yesterday…but an authorized participant added 970,196 troy ounces of silver to SLV yesterday.Over at Switzerland’s Zürcher Kantonalbank at the close of trading on Monday June 4th, they reported an increase of 24,531 troy ounces of gold in their gold ETF.  But their silver ETF had a big withdrawal of 1,802,300 ounces.The U.S. Mint had a small sales report.  They sold 115,000 silver eagles…and that was all.The Comex-approved warehouses reported receiving 596,287 troy ounces of silver…and shipped 1,245,514 ounces out the door.  The link to that action is here.Here’s the gold/silver ratio chart since December 11, 2011.  The chart is courtesy of Australian reader Wesley Legrand.Yesterday’s historic Venus solar transit brought out all the shutterbugs last evening…and here’s a photo that Nick Laird sent me late yesterday as it was happening…”I focused the binoculars on the sun with them showing their image on a piece of paper…and then used the shadow of my hand to make the black part to aim the image on.”  No one reading this will still be alive the next time Venus crosses the sun in December 2117.(Click on image to enlarge)I have the usual bunch of stories for you today, so I hope you have the time to skim the highlights.As I mentioned at the top of this report, it’s been very quiet these last couple of days…and I would assume that a lot of that would come from the fact that London was basically out of the picture for both Monday and Tuesday as Her Majesty was celebrating her 60th year on the throne.  I have a certificate that was given to our Grade 1 class in 1954 in memory of her coronation in 1952…but I digress.I was delighted to see that the precious metal shares finished in the plus column once again…and as I said from the podium in Vancouver on a couple of occasions this past weekend, it’s my belief that deep pockets are buying at this point in time.Since we managed to get through Tuesday without much fanfare, precisely what happened on Friday should be in this Friday’s Commitment of Traders Report, as the cut-off for it came at the close of Comex trading yesterday.  Whether Friday’s action was a short-covering rally, new technical longs being placed, or “all of the above” will be known.I note, as I put the finishing touches on today’s column, that there has been some activity both in Far East trading…and the early morning London session as well.  As I hit the ‘send’ button at 5:15 a.m. Eastern time, gold is up about $15…and silver’s up about 65 cents.  The dollar index has been declining during most of that time period…and is down 27 basis points at the moment.  Volumes in both metals are monstrous.  Gold’s volume is north of 45,000 contracts…and silver’s net volume is already past 10,000 contracts.  It’s obvious that these rallies are not going unopposed, so it appears that JPMorgan et al are once again stepping in as sellers of last resort…especially now that gold’s 50-day moving average has been broken to the upside with some authority.It could be an interesting day in New York…and I await the 8:20 a.m. Eastern time Comex open with great interest.See you here tomorrow.last_img read more

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Link between hip joint hypermobility and behavioral alterations also found in nonhuman

first_imgReviewed by James Ives, M.Psych. (Editor)Jun 20 2019The relation between collagen laxity and anxiety in humans is widely known, but this relation has never been observed before in other species. A team of researchers led by professors Jaume Fatjó and Antoni Bulbena from the Department of Psychiatry and Legal Medicine at the UAB, the Hospital del Mar Medical Research Institute (IMIM) and the UAB Affinity Foundation Chair in Animals and Health, analysed a set of 13 animal behavior characteristics and hip joint mobility in a total of 5575 domestic dogs. The results point to an association between hip joint hypermobility and a brain activation linked to emotions in dogs, with similar results as to those observed in people.In the case of humans, researchers observed that this relation is made evident by manifestations of anxiety, fear, agoraphobia and panic, and that it is linked to hypermobility thanks to the indirect effects of emotional and mental states through a deregulation of the brain’s independent reactions which intensify emotional states. Scientists maintain that excitability, this emotional reactivity, is one of the risk factors for anxiety disorders. Many years ago our research group discovered a relation between hypermobility and anxiety, in which people with more joint mobility and flexibility also tended to have more problems with anxiety. Now for the first time we are able to demonstrate that this association also exists in a non-human species.” Professor Fatjó, Department of Psychiatry and Legal Medicine, UAB In the new study published in Scientific Reports, of the Nature group, researchers presented the first evidence of an association between hip joint hypermobility and behavioral alterations in a non-human species, which may suggest a very ancient evolutionary link which could be a universal trait in all mammals.Also participating in the research were Andrea Bulbena, researcher at the UAB Department of Psychiatry and Legal Medicine and at the Icahn School of Medicine Mount Sinai (USA); as well as researchers from the University of London (UK), the University of Pennsylvania (USA) and The Seeing Eye organisation (USA). Source:Universitat Autonoma de BarcelonaJournal reference:Bowen, J. et al. (2019) First evidence for an association between joint hypermobility and excitability in a non-human species, the domestic dog. Scientific Reports. doi.org/10.1038/s41598-019-45096-0last_img read more

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Volkswagen sets sales record in 2018 despite headwinds

first_img Citation: Volkswagen sets sales record in 2018 despite headwinds (2019, January 11) retrieved 17 July 2019 from https://phys.org/news/2019-01-volkswagen-sales-headwinds.html © 2019 AFP Some 10.83 million vehicles from the 12-brand group rolled out of dealerships last year, up 0.9 percent on 2017, the automaker said in a statement.”We are very pleased about this great result. Especially in the second half, things were not easy for us,” said Christian Dahlheim, head of Volkswagen group sales.Strong demand for SUVs contributed to growth in the key markets of Europe, the United States, China and South America.The group’s own-brand VW cars, Skoda, Seat, Porsche and Lamborghini all set new delivery records in 2018. The only dark cloud came from high-end Audi, whose sales slumped by 3.5 percent.Each year, the Wolfsburg-based group is locked in a tight race with Toyota and Renault-Nissan-Mitsubishi for the title of the world’s topselling carmaker. The rivals have yet to reveal their 2018 figures.Volkswagen was plunged into crisis in 2015 when it admitted to cheating emissions tests in millions of diesel cars. But although it remains mired in costly legal woes, customers have stayed loyal to the group.One of the biggest headwinds last year came from the European Union’s tough new WLTP emissions tests, which were spurred by the “dieselgate” scandal.A scramble to get ready for the more complex tests from September led to production bottlenecks and a fierce price war to shift non-compliant models at several carmakers, Volkswagen chief among them.VW also had to grapple with “general economic uncertainty” in China, where a tit-for-tat tariffs spat with the US has weighed on growth, particularly in the last half of 2018. “The reluctance to buy on the part of consumers had a negative impact on the entire automobile market” in China, VW said, but the group nevertheless saw a “slight” sales increase there over the full year.VW added that it was looking to the future “with optimism” but warned of challenges ahead.”In view of volatile geopolitical developments, our business will face an equally strong headwind in 2019,” said Dahlheim.Fellow German car titan BMW also announced record annual sales on Friday of 2.49 million vehicles worldwide, up 1.1 percent on the previous year.Growth was driven by the luxury BMW and Rolls Royce brands, which both reported their best-ever figures and more than offset a drop in sales at the smaller Mini subsidiary.BMW said it expected sales to grow “slightly” in 2019 even as market conditions would “remain challenging”. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. A record performance despite headwindscenter_img German car giant Volkswagen said Friday it sold a record number of vehicles in 2018 even as it felt the sting from US-China trade tensions and problems with European emissions tests in the final months of the year. Volkswagen clinches record sales in 2017 Explore furtherlast_img read more

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Kerala Police extradites absconding rape accused from Saudi Arabia

first_imgKerala Police extradites absconding rape accused from Saudi ArabiaSunil Kumar had allegedly raped the 13-year-old girl, belonging to the scheduled caste community, in 2017 when he had come to Kerala from the Middle East for a holiday, police said.advertisement P S Gopikrishnan Unnithan ThiruvananthapuramJuly 17, 2019UPDATED: July 17, 2019 23:24 IST Image used for representation.A team of Kerala Police officials on Wednesday brought a Keralite to India who allegedly raped a minor girl in 2017 and fled to Saudi Arabia. The accused had been on the run for over two years. Sunil Kumar Bhadran, 38, was taken into custody by the Saudi police four months ago and handed over to the Kerala Police team on Wednesday.Sunil Kumar had allegedly raped the 13-year-old girl, belonging to the scheduled caste community, in 2017 when he had come to Kerala from the Middle East for a holiday, police said.The incident came to light after the victim spoke to her classmates about her ordeal. By the time the incident came to light, Sunil had already returned to Saudi Arabia. Sunil was a friend of the victim’s paternal uncle.The victim was shifted to the government care home but she allegedly committed suicide by hanging, police said. The victim’s uncle, too, committed suicide a few months after the incident.Following the suicide of the victim, the local police intensified their efforts to nab the accused. They sought the help of Interpol with the help of central agencies. The Interpol issued a red collar notice against Sunil Kumar in 2018.Kollam police commissioner Merin Joseph noticed this case and decided to bring track the accused and bring him before the law.Speaking to India Today TV, Joseph said that she noticed this case while reviewing pending case files in the office when she assumed charge.”That is when I noticed this case. This seemed to be a very serious offence to me. Our international investigation wing has already been following up on many cases including this one. On June 20, the CBI team informed us that the Saudi police arrested Sunil Kumar,” she said.Sunil Kumar was presented before the magistrate on Wednesday late evening. The investigation team will soon move a custody application in the court to take the investigation forward.For the latest World Cup news, live scores and fixtures for World Cup 2019, log on to indiatoday.in/sports. Like us on Facebook or follow us on Twitter for World Cup news, scores and updates.Get real-time alerts and all the news on your phone with the all-new India Today app. Download from Post your comment Do You Like This Story? Awesome! Now share the story Too bad. Tell us what you didn’t like in the comments Posted byChanchal Chauhan Nextlast_img read more

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11 killed in Mumbai building collapse rescue on as many still trapped

first_img Next 11 killed in Mumbai building collapse, rescue operations continue as many still trapped under debris: 10 pointsYet another dilapidated building in the congested parts of Mumbai collapsed on Tuesday morning, killing at least 11 people while many are still feared trapped.advertisement India Today Web Desk New DelhiJuly 16, 2019UPDATED: July 17, 2019 00:03 IST Rescue workers pull out a victim from the rubble at the site of a collapsed building in Mumbai. (Image: Reuters)Mumbai was met with yet another disaster on Tuesday when a dilapidated building in Dongri area collapsed taking down over 10-12 families along with it. Rescue workers have managed to pull out 11 bodies so far after working continuously since afternoon.At least 40 people were feared trapped when the unauthorised building collapsed in the congested bylanes of Dongri.This comes in a series of similar collapses that plagued the city of Mumbai, the buzzing financial capital of India, in the monsoon season.In another incident on July 2, 29 people were killed in Malad when a wall collapsed on cluster of houses behind it. Over 70 people were injured in the incident as the city battled a record-breaking volume of rainfall.On Tuesday, Mumbai relieved the nightmare once again as rescue operations continued even in the dark. Many are still feared trapped. Image: ReutersHere are the top developments:1. An unauthorised four-storey building in south Mumbai’s congested Dongri locality collapsed, killing at least 11 people and trapping more than 40 people under the debris. The National Disaster Response Force (NDRF) said six men, four women and a child were killed while eight were injured.2. The collapse was reported by locals around 11 am on Tuesday. Even over 12 hours after the collapse, rescue efforts are on as many are still feared trapped below the mound of debris.3. The building was unauthorised and officials of the Maharashtra Housing and Area Development Authority (MHADA) quickly shun responsibility and said that it was not under its supervision.4. Activists demanded stern action against civic officials after the major accident. On the other hand, several letters released by both BMC and MHADA show that both the agencies were aware of the situation in the Kesarbai building but failed to do much.5. The congested lanes and narrow entrances made it even difficult for fire and NDRF personnel to reach the accident site. Before the personnel could reach, locals had already started with the rescue operations and started removing the bricks and slabs with bare hands. Scores of locals joined in the effort, forming a human chain to remove the debris.6. At least 10-15 families lived in the building that came crashing on Tuesday afternoon without the slightest warning.7. Several politicians, ministers and legislators made a beeline into the already congested lanes and made the rescue efforts even more difficult.8. Dramatic visuals of rescue personnel pulling out children, babies and hapless people out of the rubble started doing the rounds on social media as the rescue efforts gathered steam through the day.9. There were many anxious, frantic moments as family members of those missing waited for some news, their hopes dimming with each passing hour.10. Prime Minister Narendra Modi and Home Minister Amit Shah expressed anguish over the loss of lives in a building collapse incident in Mumbai.Also Watch | Dongri building collapse: Why life is so cheap in Mumbai?For the latest World Cup news, live scores and fixtures for World Cup 2019, log on to indiatoday.in/sports. Like us on Facebook or follow us on Twitter for World Cup news, scores and updates.Get real-time alerts and all the news on your phone with the all-new India Today app. Download from Post your comment Do You Like This Story? Awesome! Now share the story Too bad. Tell us what you didn’t like in the comments Posted bySanchari Chatterjeelast_img read more

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These Odd Quasiparticles Could Finally Unmask Dark Matter

first_img The 18 Biggest Unsolved Mysteries in Physics Paul M. Sutter is an astrophysicist at The Ohio State University, host of Ask a Spaceman and Space Radio, and author of Your Place in the Universe. Originally published on Live Science.by Taboolaby TaboolaSponsored LinksSponsored LinksPromoted LinksPromoted LinksYou May LikeVikings: Free Online GamePlay this for 1 min and see why everyone is addicted!Vikings: Free Online GameUndoDr. Marty Nature's Feast SupplementWhy Certain Cats Are Fatter Than OthersDr. Marty Nature’s Feast SupplementUndoLCR Health SupplementIs A Confused Metabolism Causing You To Gain Weight?LCR Health SupplementUndoTop 10 Best Meal DeliveryMeal Kit Wars: 10 Tested & Ranked. See Who WonTop 10 Best Meal DeliveryUndoLivestlyDear Seniors And Retirees, These Dog Breeds Are RecommendedLivestlyUndoSimbalyWorld’s First Surviving Octuplets Are All Grown Up. Look At Them 9 Years LaterSimbalyUndo 9 Ideas About Black Holes That Will Blow Your Mind About 80% of all the matter in the cosmos is of a form completely unknown to current physics. We call it dark matter, because as best we can tell it’s…dark. Experiments around the world are attempting to capture a stray dark matter particle in hopes of understanding it, but so far they have turned up empty. Recently, a team of theorists has proposed a new way to hunt for dark matter using weird “particles” called magnons, a name I did not just make up. These tiny ripples could lure even a fleeting, lightweight dark matter particle out of hiding, those theorists say. [The 11 Biggest Unanswered Questions About Dark Matter] The dark matter puzzle We know all sorts of things about dark matter, with the notable exception of what it is.Headbutting Tiny Worms Are Really, Really LoudThis rapid strike produces a loud ‘pop’ comparable to those made by snapping shrimps, one of the most intense biological sounds measured at sea.Your Recommended PlaylistVolume 0%Press shift question mark to access a list of keyboard shortcutsKeyboard Shortcutsplay/pauseincrease volumedecrease volumeseek forwardsseek backwardstoggle captionstoggle fullscreenmute/unmuteseek to %SPACE↑↓→←cfm0-9接下来播放Why Is It ‘Snowing’ Salt in the Dead Sea?01:53 facebook twitter 发邮件 reddit 链接https://www.livescience.com/65887-quasiparticles-could-unmask-dark-matter.html?jwsource=cl已复制直播00:0000:3500:35  Even though we can’t directly detect it, we see the evidence of dark matter as soon as we open up our telescopes to the wider universe. The first revelation, way back in the 1930s, came through observations of galaxy clusters, some of the largest structures in the universe. The galaxies that inhabited them were simply moving too quickly to be held together as a cluster. That’s because the collective mass of the galaxies gives the gravitational glue that keeps the cluster together — the greater the mass, the stronger that glue. A super-strong glue can hold together even the fastest moving galaxies. Any faster and the cluster would simply rip itself apart. But there the clusters were, existing, with galaxies buzzing around within them far faster than they should given the mass of the cluster. Something had enough gravitational grip to hold the clusters together, but that something was not emitting or interacting with light. This mystery persisted unresolved through the decades, and in the 1970s astronomer Vera Rubin upped the ante in a big way through observations of stars within galaxies. Once again, things were moving too fast: Given their observed mass, the galaxies in our universe should’ve spun themselves apart billions of years ago. Something was holding them together. Something unseen. [11 Fascinating Facts About Our Milky Way Galaxy] The story repeats all across the cosmos, both in time and space. From the earliest light from the Big Bang to the largest structures in the universe, something funky is out there. Searching in the dark So dark matter is very much there — we just can’t find any other viable hypothesis to explain the tsunami of data in support of its existence. But what is it? Our best guess is that dark matter is some kind of new, exotic particle, hitherto unknown to physics. In this picture, dark matter floods every galaxy. In fact, the visible portion of a galaxy, as seen through stars and clouds of gas and dust, is just a tiny lighthouse set against a much larger, darker shore. Each galaxy sits within a large “halo” made up of zillions upon zillions of dark matter particles. These dark matter particles are streaming through your room right now. They’re streaming through you. A never-ending rain shower o’ tiny, invisible dark matter particles. But you simply don’t notice them. They don’t interact with light or with charged particles. You are made of charged particles and you are very friendly with light; you are invisible to dark matter and dark matter is invisible to you. The only way we “see” dark matter is through the gravitational force; gravity notices every form of matter and energy in the universe, dark or not, so at the largest scales, we observe the influence of the combined mass of all these countless particles. But here in your room? Nothing. Unless, we hope, there’s some other way that dark matter interacts with us normal matter. It’s possible that the dark matter particle, whatever the heck it is, also feels the weak nuclear force — which is responsible for radioactive decay — opening up a new window into this hidden realm. Imagine building a giant detector, just a big mass of whatever element you have handy. Dark matter particles stream through it, almost all of them completely harmlessly. But sometimes, with a rarity depending on the particular model of dark matter, the passing particle interacts with one of the atomic nuclei of the elements in the detector via the weak nuclear force, knocking it out of place and making the entire mass of the detector quiver. Enter the magnon This experimental setup works only if the dark matter particle is relatively heavy, giving it enough oomph to knock out a nucleus in one of those rare interactions. But so far, none of the dark matter detectors around the globe have seen any trace of an interaction, even after years and years of searching. As the experiments have ground along, the allowable properties of dark matter have slowly been ruled out. This isn’t necessarily a bad thing; we simply don’t know what dark matter is made of, so the more we know about what it isn’t, the clearer the picture of what it could be. But the lack of results can be a little bit worrying. The heaviest candidates for dark matter are getting ruled out, and if the mysterious particle is too light, it will never be seen in the detectors as they’re set up right now. That is, unless there’s another way that dark matter can talk to regular matter. In a recent article published in the preprint online journal arXiv, physicists detail a proposed experimental setup that could spot a dark matter particle in the act of changing the spin of electrons (if, in fact, dark matter can do that). In this setup, dark matter can potentially be detected, even if the suspect particle is very light. It can do this by creating so-called magnons in the material. Pretend you have a chunk of material at a temperature of absolute zero. All the spins — like tiny little bar magnets — of all the electrons in that matter will point in the same direction. As you slowly raise the temperature, some of the electrons will start to wake up, wiggle around and randomly point their spins in the opposite direction. The higher you raise the temperature, the more electrons wind up flipped — and each of those flips reduces the magnetic strength by just a little bit. Each of those flipped spins also causes a little ripple in the energy of the material, and those wiggles can be viewed as a quasiparticle, not a true particle, but something you can describe with math in that way. These quasiparticles are known as “magnons,” probably because they’re like tiny, cute little magnets. So if you start off with a really cold material, and enough dark matter particles strike the material and flip some spins around, you’ll observe magnons. Because of the sensitivity of the experiment and the nature of the interactions, this setup can detect a lightweight dark matter particle. That is, if it exists. The 11 Biggest Unanswered Questions About Dark Matterlast_img read more

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