From the planetary scale to the cosmic scale, astronomers are throwing away textbooks.Wrong About Planets‘Totally Wrong’ on Jupiter: What Scientists Gleaned from NASA’s Juno Mission (Space.com). The Juno mission has brought earthlings their first images of Jupiter’s poles, and new estimates of processes deep inside the giant planet. Here’s what this article says:Before NASA sent its Juno spacecraft to explore Jupiter, astronomers were “totally wrong” about much of what they thought they knew about the planet, the mission’s principal investigator, Scott Bolton, said during a lecture here at the 231st meeting of the American Astronomical Society on Tuesday (Jan. 9)….“Our ideas were totally wrong about the interior structure, about the atmosphere, [and] even about the magnetosphere,” Bolton said. Astronomers believed that Jupiter had either a very small and dense core, or perhaps no core at all. But data from Juno revealed that Jupiter has an enormous, “fuzzy” core that might be partially dissolved. This discrepancy between scientists’ expectations and the data suggests that there’s a lot we still don’t know about giant gas planets, he explained….Jupiter South Pole from Juno (NASA/JPL)Juno is the first space mission to get a good look at the poles, and the mission’s scientists did not expect them to look as weird and chaotic as they do, Bolton said. “Had someone shown me a picture of just the pole 10 years ago, I never would have guessed it was Jupiter.”While scientists and astronomers have been scratching their heads over all these new groundbreaking discoveries enabled by the Juno spacecraft, the photographs Juno has taken of Jupiter have been similarly mind-boggling, Bolton said. Juno’s raw images, taken by the spacecraft’s JunoCam, are available online for citizen-scientists to download and process, and people have helped to create the most amazing images of Jupiter the world has ever seen. “I’m not sure that anybody on my team was ready for Jupiter to look like that,” Bolton said. “We were just startled.”Wrong About ExoplanetsPlanets around other stars are like peas in a pod (Science Daily). The Kepler Mission had already forced revision of astronomical predictions that planetary systems around other stars would resemble our solar system. Now, a new survey of 909 planets in 355 stellar systems, led by Lauren Weiss at the University of Montreal, shows that exoplanets tend to be regularly spaced. The findings require new ideas, invoking unobserved past interactions, to explain why our solar system is so different.“The planets in a system tend to be the same size and regularly spaced, like peas in a pod. These patterns would not occur if the planet sizes or spacings were drawn at random.” explains Weiss….Regardless of their outer populations, the similarity of planets in the inner regions of extrasolar systems requires an explanation.Wrong About StarsNature article turns theory of stellar evolution upside-down (Phys.org). Study of a white dwarf not only challenges theories about these specific objects, thought to be the end points of stellar evolution, but of stellar evolution theory itself. White dwarfs are thought to be the end products of 97% of stars in the universe. This upset was published by “Nature, one of the world’s top science magazines,” the article notes.This week, Nature published an article that could challenge the theory of stellar evolution.“I think that, over the coming months, stellar astrophysicists will have to redo their calculations,” said Gilles Fontaine, a physics professor at Université de Montréal and one of the authors of the article, titled “A large oxygen-dominated core from the seismic cartography of a pulsating white dwarf.”…When examining the star, located at the edges of the Cygnus and Lyra constellations, the researchers discovered that its carbon and oxygen core was twice as big as the theory predicted. “This is a major discovery that will force us to re-evaluate our view of how stars die,” said Fontaine. “That said, more work must be done to confirm whether this observation holds true for other stars. It may just be an anomaly.”Wrong About the Universe‘Serious gap’ in cosmic expansion rate hints at new physics (BBC News). One of the winners of the Nobel Prize for Physics in 2011, Adam Riess, is having doubts about the measurements that led to his award. He may have to invent a new particle to close the gap.A mathematical discrepancy in the expansion rate of the Universe is now “pretty serious”, and could point the way to a major discovery in physics, says a Nobel laureate.The most recent results suggest the inconsistency is not going away….What this all suggested, he said, was that the Universe is now expanding 9% faster than expected based on the data – a result he described as “remarkable”.One way to bridge the divide is to invoke new phenomena in physics.The new particle might be a “sterile neutrino,” the article guesses. “Another possibility is that dark energy behaves in a different way now compared with how it did in the early history of the cosmos.” Would that ad hoc suggestion not lead to another conundrum about fine-tuning, leading to wonder about how humans live in a privileged time when the earth is habitable and we can see a universe filled with stars?Historical science is fun. You can be totally wrong, change your story, invoke unseen phenomena, and claim you are providing “understanding” of reality. And the media and public will believe you and let you keep your job.(Visited 1,656 times, 1 visits today)FacebookTwitterPinterestSave分享0
Unfortunately, regardless of the method used, the amount of flow coming out of the registers never quite matched what was coming through the fan. After over an hour of testing and retesting, Bruce opined on the problem, suggesting that the Duct Blaster fan could be incorrectly calibrated. One of the attendees pointed out that whenever he has trouble with flow measurements he uses a different hose. Although the session leaders were skeptical, they agreed to give it a try. Success!In a matter of seconds the hose was changed, and like magic, the flow measurements started matching up and making sense. Although a little embarrassed by the episode, Bruce and Paul rallied and continued with their workshop.Disregarding the hosing and resulting problems, one of the main takeaways from the session was that it is pretty hard to accurately measure airflow in duct systems and exhaust fans, something that reinforces my admittedly limited experience. Devices available to measure airflow include the previously mentioned anemometers, flow hoods, a pressure pan, a True-Flow air handler flow meter, and garbage bags.Wide-vane anemometers can be moved around over grilles to obtain an average airflow or attached to a hood that fully covers a register, a method that appears to provide better accuracy. Hot-wire anemometers are used most often to measure pressure inside a duct through a hole drilled in the side, moved back and forth to obtain an average pressure throughout a duct.Flow hoods appear to have varying degrees of accuracy, and can be difficult to hold in place. Pressure pans, used to measure exhaust flow only, are fairly simple, but it is critical to open the small door on them to the correct location for the airflow, and to match the manometer setting to obtain an accurate reading. Among the multitude of sessions at the ACI conference in Denver recently (a total of at least 180 sessions by my count), there was a very interesting half-day workshop on airflow testing hosted by Bruce Manclark and Paul Francisco. Their setup included simulated HVAC ducts of various shapes and sizes, and they used a Minneapolis Duct Blaster to provide air flow to test various measurement tools.They demonstrated various methods of air flow measurement, including the use of flow hoods, large-vane and hot-wire anemometers, pito tubes, and, probably most interesting, the surprisingly accurate garbage bag method.Before we get to the various measurement methods, a note on the “hosing” mentioned in the title of this post. In order to provide a specific amount of airflow to be measured, Bruce and Paul used the aforementioned Duct Blaster, connected to a manometer with a hose to provide air flow at a specific CFM to the ducts to be measured. While one attendee watched the flow rate on the manometer, several methods of measurement were demonstrated on rectangular and round supply registers. RELATED ARTICLES Simple Methods for Measuring Air FlowResidential CommissioningDuct Leakage TestingCool Tool for Duct Testing Simple and cheap = AccurateWhich leaves us with the garbage bag. By simply calculating the volume in a standard plastic garbage bag, and timing how long it takes to fill up or empty completely, you can fairly simply calculate the CFM of almost any supply or return register or exhaust fan. This method works best with two people – one to hold the bag and one to time it – but man, it sure is cheap and simple, and apparently, pretty accurate.My takeaway from this session is that flow measurement is a difficult and somewhat inexact science. In my experience on building certifications, I have done a minor amount of flow testing, primarily of exhaust fans, and I have reviewed third-party test and balance reports provided to me by clients. In almost all cases, air flows are not close to the design and, since most residential ductwork is inaccessible, air flows are difficult if not impossible to adjust to meet designs.I know that there are people out there meeting Energy Star 3.0 certification that requires HVAC systems and exhaust fans meet designed air flows. I would be very interested to find out if in fact they are really meeting the requirements, and how they are doing it.I both look forward to and slightly fear the opportunity to test and verify these conditions myself on upcoming projects.
SEA Games in Calabarzon safe, secure – Solcom chief And even though she led the beating, Kim had high praise for the Philippines.“I think they are so much better now, I saw them like two or three years ago and they did not play like that,” said Kim of the 79th-ranked Philippines in the FIVB world rankings. “I mean, they’ve improved a lot especially that they are very young. I’m sure they can improve after this.” Against the Philippines, however, Kim was thrust much earlier when she entered the floor near the end of the first set when the Filipinos were attempting to break the Koreans in the opening period.READ: Facing KYK huge challenge, morale-booster for PH volleybellesKim would finish of the first set and eventually lead the Koreans to a sweep, 25-23, 25-18, 25-12.“It was close in the first set and in the beginning of the second set so I expected to play,” said Kim who had 12 points against the Philippines.The Philippines were leading 10-7 in the second set when Kim made her second appearance, and for good measure she started the third set for Korea.ADVERTISEMENT Catriona Gray spends Thanksgiving by preparing meals for people with illnesses Trending Articles PLAY LIST 00:50Trending Articles01:46US defense chief agrees it’s time to take another look at defense pact with PH00:50Trending Articles01:37Protesters burn down Iran consulate in Najaf01:47Panelo casts doubts on Robredo’s drug war ‘discoveries’01:29Police teams find crossbows, bows in HK university01:35Panelo suggests discounted SEA Games tickets for students02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games CONTRIBUTED PHOTOBIÑAN, Laguna—Korea captain Kim Yeon-koung had played just 10 minutes during the group stages of the AVC Asian Women’s Volleyball Championship so it came as a huge surprise when she stepped up against the host in the classification stages.Kim sat out the first two games in the preliminaries as she got permission from Korea head coach Hong Sungjin to take a breather after just competing in the FIVB World Grand Prix.ADVERTISEMENT LOOK: Venues for 2019 SEA Games LATEST STORIES The Fenerbahce outside hitter, though, told Hong that she was ready to play against the Philippines in their first game in the classification round.READ: AVC: Philippines loses second straight as Korea stays undefeatedFEATURED STORIESSPORTSWATCH: Drones light up sky in final leg of SEA Games torch runSPORTSSEA Games: Philippines picks up 1st win in men’s water poloSPORTSMalditas save PH from shutout“I spoke with our coach and he said to be ready for the game so I told him that I was ready,” said Kim Sunday at Alonte Sports Arena.Kim played late against Vietnam in Korea’s final group stage game as she entered the match in the fourth set to lead the 10th-ranked team in the world to a 25-23, 25-19, 17-25, 25-22 win. MOST READ Brace for potentially devastating typhoon approaching PH – NDRRMC Typhoon Kammuri accelerates, gains strength en route to PH K-pop star Jung Joon-young convicted of gang rape, spycam crimes Don’t miss out on the latest news and information. Playing against royalty in 2017 SEA Games UPLB exempted from SEA Games class suspension WATCH: Streetboys show off slick dance moves in Vhong Navarro’s wedding Read Next View comments
Javier Hernandez is daring to dream of a top-four finish with West Ham after seeing off speculation regarding his future.The Mexico international striker first sparked exit talk in January and has seen the transfer rumours roll over into the summer window.A positive World Cup, which saw him reach 50 goals for his country, fuelled speculation that the former Manchester United star could be on the move. Article continues below Editors’ Picks Man Utd ready to spend big on Sancho and Haaland in January Who is Marcus Thuram? Lilian’s son who is top of the Bundesliga with Borussia Monchengladbach Brazil, beware! Messi and Argentina out for revenge after Copa controversy Best player in MLS? Zlatan wasn’t even the best player in LA! Chicharito has, however, opted to stay put and is now targeting Champions League football with the Hammers.He told the club’s official website on the back of sizeable investment under new boss Manuel Pellegrini: “The club is doing well with improvements in all the areas, in the team, but also in all the staff they have brought in with the manager.“Top six, top four is the aim, as high as we can. I’m a dreamer.“I work hard and my thoughts are always positive. I am always aiming as high as I can and if we can put West Ham in the Champions League why not? That’s the dream, that’s the idea and hopefully we can get it.”Hernandez managed just eight goals for West Ham last season, as the club battled to steer a course to Premier League safety under Slaven Bilic and David Moyes.He is hoping for better in 2018-19, with Pellegrini having convinced him to remain at the London Stadium with the promise of more opportunities.Chicharito added: “The manager called me before the World Cup because he knew my situation was difficult at the end of last season, and he made me feel very good.“He told me I was going to be an important player and would play an important role in this team, so he gave me a lot of confidence.“I’m very motivated and I know I need to work hard to win a place in the starting line-up and then perform as well as I can to help the team with goals, assists and good performances to get the points to move up the table.”West Ham are set to open their campaign away at title hopefuls Liverpool on Sunday.
TagsTransfersAbout the authorPaul VegasShare the loveHave your say Inter Milan chief Ausilio: Mourinho always has our esteemby Paul Vegas10 months agoSend to a friendShare the loveInter Milan chief Piero Ausilio says Jose Mourinho will always have a place of honour at the club.However, he insists coach Luciano Spalletti’s job is safe after Manchester United sacked Mourinho yesteday.Ausilio said: “We are connected to the results, the esteem for him is regardless of the future of Inter, which has a great coach… “Let’s move on with Spalletti, we are building the future with him.”Mourinho led Inter to an historic Treble in 2010.
Arsenal midfielder Torreira overjoyed with Vieira chantby Freddie Taylor10 months agoSend to a friendShare the loveArsenal midfielder Lucas Torreira has spoken about his delight at chants comparing him to Patrick Vieira.The Uruguayan has been a sensation in midfield for the Gunners, scoring important goals and providing a physical presence they have been missing for years.A recent chant from Gunners fans has compared him to legendary French midfielder Vieira.And Torreira could not be more pleased.”It’s incredible. Every time I hear it, I feel so proud,” the 22-year-old told Arsenal’s website. “It gives me a real energy boost and that strength to go after every ball.”I can only really say thank you to the fans. They’re incredible and fill out every stadium, whether it’s home or away.”They’re singing for the whole 90 minutes and that’s massive for the team because it makes us feel that we have their support.”When we’re out there playing, we want to do our best to entertain them.” About the authorFreddie TaylorShare the loveHave your say
CALGARY — An industry-sponsored fund designed to help develop clean technology using Canadian natural gas is launching a $3-million call for project proposals.The Natural Gas Innovation Fund says the call for applications, with a February deadline, is being made possible by the addition of seven western Canadian natural gas producers to a membership previously made up of six natural gas utilities.The new members include the Canadian branches of two partners in the proposed $40-billion West Coast LNG Canada project: Royal Dutch Shell and Petronas; along with Canada’s largest natural gas producer, Calgary-based Canadian Natural Resources Ltd.Fund managing director John Adams says the new program will target projects in the upstream or producing part of the industry, making up to $1 million available per project to cover as much as 25 per cent of its eligible expenses.Adams says the fund, created by the Canadian Gas Association, has over the past two years issued about $9 million to projects focused on energy efficiency.The fund is also announcing a partnership with federal, Alberta and British Columbia governments to collaborate and consider co-funding successful applicants with projects that deliver significant greenhouse gas emission reductions.The upstream fund members were introduced at an event at the Calgary Petroleum Club on Wednesday.“As a producer of natural gas, we’re big believers in the need for affordable, clean energy for all people worldwide,” said CEO Mark Fitzgerald of Petronas Energy Canada Ltd. in a statement.“In an age where technology has become the catalyst for exponential advancements in our industry, we’re excited to be involved in the Natural Gas Innovation Fund which pursues diversity of thought and provides a platform for sharing solutions.” Companies in this article: (TSX:CNQ)The Canadian Press
The Action Surface Rights Association has intervened in the case because it believes rights of landowners have been overlooked in the case. UPDATE – The Supreme Court has ruled companies can’t abandon old wells. Click here for the details.OTTAWA, O.N. – The Supreme Court of Canada is set to rule today on whether energy companies can walk away from unprofitable wells on agricultural land without having to clean up behind them.A 2016 ruling in the Alberta Court of Queen’s Bench allowed a bankrupt energy company to sever its connection with unprofitable and unreclaimed wells when their assets were sold off to creditors. The Alberta Court of Appeal upheld the ruling.Since the case came to court, an estimated 1,800 wells representing more than $100 million in liabilities have been abandoned.Alberta’s provincial energy regulator ordered the trustee for Redwater Energy Corporation to comply with end-of-life requirements to render the abandoned properties environmentally safe.The company’s trustee did not comply, and filed its own counterclaim that included a constitutional challenge to the regulator’s action.The energy regulator and the Orphan Well Association, an industry-funded group that cleans up wells that have been left unreclaimed, have appealed the ruling to the high court.A group with the support of thousands of farmers also wants to see the high court reverse the decision.
Coming off a dominating 18-8 win against first-year program Marquette, the No. 13 Ohio State men’s lacrosse team takes its unbeaten streak into Happy Valley on Saturday at 1 p.m. to take on the No. 8 Penn State Nittany Lions. At 3-0, the Buckeyes hope to keep up the success that they have found early in the year. Freshman attacker Carter Brown and sophomore midfielder Jesse King recorded a combined 13 points against the Golden Eagles and sparked OSU’s offense which had been stagnant the week before against Jacksonville in a 9-6 win. For his four goals and three assists, Brown was named the Eastern College Athletic Conference Rookie of the Week. The freshman, though, saw the improvement of the team as a whole, not just his individual statistics. “Our offense was clicking in the second quarter especially,” Brown said. “We were just making the easy play and I just got some easy goals.” King, too, said he felt the team improved on offense after a tough week of practice. “Honestly, this week we worked out a lot on working the ball on the outside,” King said. “Our chemistry is coming together, and this week it just clicked.” But the Buckeyes will likely have a tougher challenge this week against Penn State in State College, Pa. The Nittany Lions have already defeated No. 10 Denver on the year and took No. 2 Notre Dame to overtime in their only loss of the season. Last year, Penn State handed OSU its second loss of the season in a 5-2 victory March 3 at Ohio Stadium. In spite of a schedule featuring five games against top-11 opponents in March, some members of the team are staying positive. OSU coach Nick Myers sees how far his players have come so far this year, but understands there are improvements to be made. “We’ve got a lot of work to continue to do,” Myers said. “It’s February … We’re not the team that we wanted to be yet, but we’re taking steps in the right direction.” The game could also be a potential precursor for what is to come, with reports swirling that a Big Ten conference for lacrosse could be on the horizon. “There’s been some positive conversation,” Myers said about the potential new conference. “This Penn State-Ohio State rivalry has been special for years now. I think that will only get more traction if the Big Ten conference continues to move in the right direction.” King, who was a part of the team that lost to Penn State in Columbus last year, is excited to get another shot at the Nittany Lions. “I’m excited, they’re going to be a great game,” King said. “It’s always fun playing against Penn State.”
Ohio State redshirt junior guard Sierra Calhoun attempts a shot during the Buckeyes’ game against Minnesota in the semifinals of the Big Ten tournament on March 3, 2018. Ohio State won 90-88 to advance to the championship. Credit: Alyssia Graves | Assistant Sports DirectorINDIANAPOLIS — The Ohio State women’s basketball team claimed an outright Big Ten regular-season championship and now it has its sights on winning the conference tournament for the first time since 2011.In order to achieve that goal, the Buckeyes would have to knock off Maryland, which has won the past three Big Ten championship games by a combined margin of 29 points. The two teams met in the championship in 2015, and the Terrapins won 77-74.On Jan. 22 in College Park, Maryland, Ohio State fell 99-69 to Maryland in its largest loss of the season despite all five starters scoring in double-figures. The top-seeded Buckeyes will have their shot at revenge in the Big Ten championship when they take on the second-seeded Terrapins at Banker’s Life Fieldhouse in Indianapolis at 7 p.m. Sunday.Projected StartersOhio State:G — Kelsey Mitchell — Senior, 5-foot-8, 24.5 ppg, 3.2 rpg, 4.3 apgG — Linnae Harper — Redshirt senior, 5-foot-8, 14.6 ppg, 8.4 rpg, 2.5 apgG — Sierra Calhoun — Redshirt junior, 6-foot, 11.7 ppg, 3.9 rpg, 1.3 apgF — Alexa Hart — Senior, 6-foot-3, 5 ppg, 3.3 rpg, 0.9 apgF — Stephanie Mavunga — Redshirt senior, 6-foot-3, 16.5 ppg, 10.8 rpg, 0.7 apgMaryland: G — Channise Lewis — Freshman, 5-foot-8, 5.4 ppg, 2 rpg, 4.8 apgG — Kristen Confroy — Senior, 5-foot-9, 9.5 ppg, 5.2 rpg, 2.8 apgG/F — Eleanna Christinaki — Junior, 6-foot, 12.4 ppg, 4.7 rpg, 1.5 apgG — Kaila Charles — Sophomore, 6-foot-1, 18.2 ppg, 8.3 rpg, 2.2 apgF — Stephanie Jones — Sophomore, 6-foot-2, 11.1 ppg, 6.5 rpg, 0.9 apgScouting MarylandIn the first meeting between Ohio State and Maryland this season, the Terrapins had their way. They shot 54.9 percent from the field and hit 11-of-18 3-pointers to bury the Buckeyes, who fell behind by double-digits less than five minutes into the game and never recovered.In that game, junior guard/forward Eleanna Christinaki and guard Kalia Charles powered the Terrapins just as they have in most games. Christinaki dropped 26 points, went 6-for-11 from deep and grabbed eight rebounds while Charles had a game-high 32 points, making 12-of-16 shots from the field and 7-of-8 free throws.The combination of defense, rebounding and a diverse scoring attack gave the Buckeyes major problems and figures to be a substantial challenge again.The Terrapins hold opponents to 38.8 percent shooting from the field and hit 39 percent of their 3-pointers. They start senior guard Kristen Confroy, who averages the fourth-most points of the projected starters, but shoots a Big-Ten best of 44.2 percent from beyond the arc.Though Maryland does not have any interior player as dominant as Ohio State redshirt senior forward Stephanie Mavunga — who picked up the first 20-point, 20-rebound game in Big Ten tournament history on Saturday — it maintains the second-best rebounding margin in the conference of plus-eight rebounds. The Terrapins showed that edge with a 47-32 rebounding advantage in the season’s first matchup against the Buckeyes.Maryland (plus-17.1) and Ohio State (plus-14.1) have the top scoring margins in the Big Ten, having blown out many teams this season. But they ended the season with different trajectories.On Jan. 26, Maryland sat in first in the conference by two games after Ohio State lost three-straight games, including the 30-point defeat by the Terrapins. But the Buckeyes won eight of their final nine regular-season games and won the first two games of the conference tournament as well. Maryland, however, lost three of its final four regular-season games to Purdue, Minnesota and Michigan to slip into second place and give Ohio State an opportunity to pounce on the regular-season title. It lost the three games by a combined margin of 35 points.Regardless of how the Terrapins finished, they pose more challenges to the Buckeyes than any other team in the Big Ten. If Ohio State can control the pace, keep Maryland off the offensive glass and keep Charles and Christinaki from getting hot, it has a chance to claim the championship. But that is a tall task for a team sans a starter that fell to the Terrapins by 30 points less than two months ago.Still not tired?The day before the Buckeyes opened the Big Ten tournament with a win against Rutgers, senior guard Asia Doss learned she would not play due to a sprained right ankle suffered in the regular-season finale. The loss of her squeezed Ohio State’s already-lacking depth even more.In the quarterfinals, the Buckeyes took an early lead — and some key players got into foul trouble — which allowed them to give ample rest, playing seven core players between 18 and 33 minutes. But the next day against Minnesota, guards Kelsey Mitchell, Sierra Calhoun and Linnae Harper and forward Stephanie Mavunga played at least 34 minutes. Mitchell did not sit out a single minute.With less than 24 hours between the end of that contest and the tip-off of the Buckeyes’ game against Maryland, fatigue would seem to be a struggle. But Mitchell and Mavunga don’t see that as an option.“Well, if we want to win, and I think everybody wants to do that, we’re going to be okay,” Mitchell said. “We don’t have a choice.”Mavunga quickly chimed in: “Coach McGuff said we’ll rest on Monday.”Mitchell went so far as to say she enjoys the feeling of playing multiple games in subsequent days, which reminds her of AAU games with higher stakes.“It feels good, like it feels good to be able to play games back to back and you don’t know who is going to win,” she said.