Exoplanets Are Young, Too

first_imgObservations cause a major upset in planet formation theory, and the time needed for evolution.Two days ago, we reported the evidence for youth in Saturn’s rings and moons (19 Dec 2018). A new report from Science Magazine extends this youth out to the planets around other stars. Daniel Clery, in his article “Hints of young planets puzzle theorists,” gives observational evidence that the long-standing “core accretion” model for planet formation is wrong. At least 20 exoplanets have dust disks that can’t be as old as expected. Keep in mind that planetary scientists still make ‘reckless drafts on the bank of time’ (2 July 2007) as do the geologists, tossing around millions and billions of years like politicians with OPM (other people’s money). In this quote, Clery sounds like a politician realizing there’s not enough revenue for his favorite program.HL Tau, a mere stripling of a star no more than 1 million years old, was swaddled in a surprise. Four years ago, the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile revealed gaps in a bright disk of dust around HL Tau—apparently swept clean by unseen planets that had formed millions of years earlier than astronomers thought possible. But now, an ALMA survey of 20 disks around nearby young stars suggests the precocious planets around HL Tau are no anomalies—a result that will keep theorists busy for years.There aren’t enough cloths to swaddle the baby. How big a surprise is this? Clery quotes an astronomer:“It’s spectacular,” says Joshua Winn of Princeton University. “We will never think about disks in the same way.”The findings appear to falsify the favored core accretion theory. “The process is expected to be slow, taking millions of years to play out.” These exoplanets are too young for that. Many of the cleared lanes are farther out than Neptune is from the sun, Clery says, adding to the problem, because there should be a paucity of dust at those distances.Planetary Science: the myth that dust bunnies turn into real bunnies, given billions of years.The evidence takes away support for core accretion theory and hands it to the “heretical” theory called disk instability. How fast is that process?An alternative model relying on unstable ripples or clumps in the disk that collapse under their own gravity can make planets faster, especially large ones in distant orbits. But Marco Tazzari, of the Institute of Astronomy at the University of Cambridge in the United Kingdom, notes that the survey found few spiral arms—signs of disk instabilities—in the disks. “There are many structures we cannot account for,” he says.The astronomers only see the lanes cleared of dust, not any planets themselves. Their proposed solution? Futureware. “To untangle these issues, astronomers need additional observations,” Clery writes. At least they are looking now, instead of just modeling. Clery’s article illustrates the latest revision of Murphy’s Law: “Anything that can go wrong has already gone wrong.” Scientists are just finding it with the ALMA Telescope. It also illustrates H. L. Mencken’s conjecture, “For every complex problem there is an answer that is clear, simple, and wrong.”Both theories, therefore, don’t seem to work. And what about the rocky, inner planets? Disk instability is not as helpful in those cases.Ashes to Ashes and Dust to DustAt New Scientist, Leah Crane demoted our planet by saying, “Earth may be made up of rocks blasted by gusts of solar wind.” Don’t you feel better now? Our response should be, “If you say it MAY be, it also MAY NOT be. How do you know?” She sings the old Bob Dylan ballad, “The answer, my friend, is…’The solar wind consists of ions, not rocks.Earth may have started as dust in the wind. Unlike in many other stellar systems we’ve seen, the area close to our sun is empty. That may be because early in the solar system’s formation, the solar wind blew rocks near the sun into the area where Mercury, Venus, and Earth eventually formed.That’s odd; we know a lot about the solar wind, and our sun isn’t blowing chunks these days. For cover, Crane runs to Christopher Spalding at Yale University, who has a “simulation.” If you start with the right size pebbles, he says, and if the sun was more active in the past, and if Jupiter contributed its gravity – then rocks 100 meters and smaller “may have acted as building blocks for these rocky worlds.” They “may have,” he says, but he’s cheating. Getting dust to grow into pebbles by accretion is one of the big hurdles in planet formation theories (28 June 2018). At least the ALMA team had observations, not just simulations.Readers, please realize that secular astronomers believed the core accretion model for decades. And before that, textbooks routinely taught the planetesimal hypothesis. And centuries before that Laplace presented the nebular hypothesis, for which he famously told Napoleon it had no need of God. Well, now we have telescopes that fail to confirm it, and the recent “alternative hypothesis” of disk instability isn’t looking too good, either. Let’s put the findings together in a logical way. If exoplanets form quickly, then Saturn formed quickly. If Saturn’s rings and moons are young, then Saturn is young. If Saturn is young, the solar system is young. If the earth is young, then Charlie & Charlie* were wrong; life must have been created. Tell me, theistic evolutionists, why you feel so compelled to abandon Genesis and desire the company of people who keep turning out to be wrong? Don’t you believe Psalm 119:99? “I have more understanding than all my teachers, for Your testimonies are my meditation.”*Lyell, Darwin.Recommended resources: Michael Denton is neither a Christian nor a creationist, but his recent books The Wonder of Water (see the video), and Children of Light (hear his podcast) make a compelling case that our universe, our star, and our planet were intended for beings like us. Isaiah said as much long ago. “For thus says the Lord, Who created the heavens, Who is God, Who formed the earth and made it, Who has established it, Who did not create it in vain [i.e., by random forces or the Stuff Happens Law], Who formed it to be inhabited: “I am the Lord, and there is no other” (Isaiah 45:18).For your amusement, here are some Murphy’s Laws that seem appropriate to the story:If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.If you perceive that there are four possible ways in which something can go wrong, and circumvent these, then a fifth way, unprepared for, will promptly develop.If anything simply cannot go wrong, it will anyway.Whether things can go wrong or not, it depends on your frame of reference. Regardless of your frame of reference, things will go wrong anyway.Two wrongs don’t make a right. It usually takes three or four.If your action has a 50% possibility of being correct, you will be wrong 75% of the time.Anything that can’t possibly in a million years go wrong, will go wrong.The probability that something can go wrong is directly proportional to the square of the amount of inconvenience it can cause you.The only time something’s right is when everyone agrees its wrong. (Visited 594 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

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RJD makes final offer of 11 seats to Congress in Bihar

first_imgThough only a few days are left for the general elections to be notified, Lalu Prasad’s Rashtriya Janata Dal (RJD), the Congress and the allies have not been able to finalise the seat distribution in Bihar. According to sources, the RJD has made a final offer of 11 Lok Sabha seats to the Congress, which in turn has been demanding 14 seats. The Congress fought on 12 seats during the 2014 election but managed to win only two. Of the 40 seats in Bihar, four are with the RJD.The RJD is driving a hard bargain and senior RJD leaders said they would want to be consulted on the candidates the Congress decides to field. More than the number of seats, the choice of seats offered to the Congress is creating a problem, a senior Congress leader said. ‘Cordial ties’ The RJD claims that the seat distribution is in the final stages and will be finalised in 48 hours. But the Congress is not sounding optimistic. Congress general secretary in-charge Shakti Sinh Gohil told The Hindu that the talks were still on and a decision can be expected only after the Congress Working Committee meeting in Ahmedabad to be held on March 12. “We have cordial and good relations and at an appropriate time, we will announce,” Mr. Gohil said.The Congress is keen to give tickets to outsiders, including BJP rebels Kirti Azad and Shatrughan Sinha. It is equally eager to take leaders such as Pappu Yadav and Anant Singh on board, who have been at odds with the RJD for a long time.The RJD is also not keen to concede seats to the CPI(M) or the CPI claiming that in Bihar, the CPI(ML) is the only Left party worth giving space to. Equally, there is the problem of accommodating other allies like Jitan Ram Manjhi of the Hindustan Awam Morcha, former Union Minister Upendra Kushwaha and Jan Loktantrik Party chief Sharad Yadav. Sources said Mr. Kushwaha may get three seats but Mr. Manjhi may get only the Gaya Lok Sabha constituency and Sharad Yadav too may get only one seat. The delay in seat allocation in the Opposition camp has given the National Democratic Alliance (NDA) reason to cheer. JD (U) spokesperson K.C. Tyagi said the prolonged negotiations clearly indicated that the “mahagatbandhan” was not driven by principles. “The Congress’s big-brother attitude is creating problems for them and their allies everywhere. They have always had the habit of not accept ground realities. It was Nitish Kumar who gave the Congress 40 seats to contest when they were down to four in the Bihar Assembly. This mahagatbandhan is not based on principles so obviously they will find it tough to come together,” Mr. Tyagi said.last_img read more

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No more limit on lending of PBA players to Gilas, says new commissioner

first_imgBrace for potentially devastating typhoon approaching PH – NDRRMC “I told everyone before that we will pitch that proposal to the Board and we weren’t denied,” he shared on Thursday as he addressed the media for the first time as the league’s new chief.“It was the Board who said that whoever player coach Chot Reyes wanted, he can get them as long as there won’t be any schedule of games.”FEATURED STORIESSPORTSWATCH: Drones light up sky in final leg of SEA Games torch runSPORTSLillard, Anthony lead Blazers over ThunderSPORTSMalditas save PH from shutoutMarcial made true on his earlier pronouncements of abolishing the two-per-team clause.RELATED: OIC Marcial reaffirms PBA’s commitment to Gilas program Typhoon Kammuri accelerates, gains strength en route to PH Read Next Photo by Tristan Tamayo/ INQUIRER.netThe dream of having an unlimited PBA player cap for Gilas Pilipinas is finally a reality with the appointment of new commissioner Willie Marcial.The congenial executive shared that the Board of Governors has already approved his proposal of taking out the limiting clause between the league and the national team program.ADVERTISEMENT 2 ‘newbie’ drug pushers fall in Lucena sting Trending Articles PLAY LIST 00:50Trending Articles00:50Trending Articles00:50Trending Articles01:29Police 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 Games01:44Philippines marks anniversary of massacre with calls for justice01:19Fire erupts in Barangay Tatalon in Quezon City Globe Business launches leading cloud-enabled and hardware-agnostic conferencing platform in PH John Lloyd Cruz a dashing guest at Vhong Navarro’s wedding Kerber positive after narrow semifinal loss to Halepcenter_img In the previous agreement between the PBA and the Samahang Basketbol ng Pilipinas (SBP) forged in 2016, all 12 teams were required to lend at least one veteran and a member of the cadet pool drafted in the 2016 PBA Rookie Draft to the national team pool.Since the start of the 2019 Fiba World Cup Asian qualifiers, only three teams, namely TNT (Jayson Castro, Troy Rosario, and Roger Pogoy), NLEX (Kevin Alas, Kiefer Ravena, and Fonzo Gotladera), and Rain or Shine (Gabe Norwood, Raymond Almazan, and Mike Tolomia) have exceeded that cap and willingly allowed their players to don the national tri-colors.That, however, is no longer the case as Marcial and the rest of the Board are giving Reyes the free rein to pick the best possible players for the Philippine team for the upcoming international competitions.“On the PBA’s side, that’s what we’ll do,” said Marcial.ADVERTISEMENT Slow and steady hope for near-extinct Bangladesh tortoises Don’t miss out on the latest news and information. Kammuri turning to super typhoon less likely but possible — Pagasa MOST READ NEXT BLOCK ASIA 2.0 introduces GURUS AWARDS to recognize and reward industry influencers LATEST STORIES View commentslast_img read more

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Harley Davidson sells its bike to a woman in Bangalore

first_imgSheeja Mathews became the first woman in India to own the iconic cult motorcycle.Why should men have all the fun with Harley Davidson? Bangalore-based HR professional Sheeja Mathews on Tuesday became the first woman in India to own the iconic cult motorcycle, thus breaking the stereotype of only tattoo sporting muscular hunks riding the bike.The 34-year-old, who has been riding to her office on her husband’s Yamaha RD 350 for the past 10 years, is now looking to cruise the new ‘Iron 883’ to her workplace at least once a week.”I didn’t know that I was the first woman to buy a Harley Davidson in India till the company people told me. I thought of upgrading to a Harley when they opened a showroom here,” Mathews said.When asked what prompted her to go for a Harley Davidson, she said: “Well, I have been riding my husband’s bike for the past 10 years and I thought it was high time I upgraded.”Mother of a 7-year-old son, Mathews said even her son is excited about the new bike, on which the family has spent about Rs 8 lakh in total, although the ex-showroom price of the bike is Rs 6.5 lakh.”Oh, he wants me to drop him to school on the bike so that he could show off his mother’s bike to his friends,” she said, adding, she would be taking the bike on long rides on weekends.A self proclaimed foodie and a shopaholic like any other woman, Mathews said she has been a drag racer as well.advertisement”I do drive a (Tata) Safari and (Chevrolet) Cruze but I love bikes,” she said, adding, her businessman husband chipped in 20 per cent of the amount for her Harley Davidson.The American cult bike maker started selling its bikes in India from last year and announced to set up an assembly plant in India in order to cater to demands here.The Iron 833 model is one of the two models to be assembled at the Bawal facility in Haryana. The other model is the Super Low.The company offers a total of 15 models in India priced between Rs 5.5 lakh to Rs 38.66 lakh (ex-showroom Delhi).last_img read more

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Rising Large Marine Losses Could Prove Too Much for Insurers

first_imgzoom The increasing number of large marine losses can potentially put severe financial strain and overwhelm insurance companies, Dieter Berg, President of the International Union of Marine Insurance (IUMI), said during the closing of this year’s IUMI 2016 marine insurance conference in Genova, Italy.Berg cited the recent losses connected with the Chilean earthquake in 2010, the Japanese earthquake and tsunami in 2011 (USD 3.8 billion loss), Thai floods in 2011 (USD 2.5 billion loss), Hurricane Sandy in 2012 (USD 3 billion loss) and the Tianjin explosion in 2015 (USD 3-4 billion loss expected).These marine losses were often coupled with associated major property losses, Berg said.“Our industry is concerned that natural catastrophes, due to climate change, are occurring more often and with greater severity,” Berg said.”Coupled with this, globalisation and the unrelenting growth of global trade is driving an increase in the value of goods being transported by sea and an increase in the quantity of goods being stored on ultra-large container ships, or in port terminals. These have the potential to create extremely large losses. Recent marine losses have been very expensive for insurers and often an accumulation of multiple business lines occur which can include cargo losses, container losses, warehouse damage, destruction of automobiles, damage to pleasure craft and even fine art losses. At Tianjin, for example, around 68,000 cars were affected, i.e. a total loss or damaged, by a single explosion.”Berg explained that when large marine losses were combined with property and other losses, there was a real concern that this might overwhelm insurance companies.He called on the industry to understand, clearly, their aggregate positions and to manage their exposures by carefully modelling their risk positions.last_img read more

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