You can’t just fire bullets at pumice and claim that Earth got its oceans that way.Talk about weird science. Two guys at Brown University went to a shooting range to figure out how Earth got its water. But is their theory all wet?First, they realize that explaining that has been difficult. From their paper in Science Advances, R. Terik Daly and Peter H. Schultz say,The timing of volatile delivery to the inner solar system continues to be debated. Some have argued that the terrestrial planets accreted dry and later gained volatiles as part of the “late veneer”. Recent Ru isotopic data, however, imply that the late veneer was not the primary source of volatiles on Earth. Moreover, data from angrites and eucrites point to the accretion of water in the inner solar system within the first few million years of solar system history. Isotopic evidence also indicates that carbonaceous chondrite (CC)–like impactors delivered much of the volatiles in the inner solar system. However, the actual mechanisms that trap this water remain poorly constrained.The “water planet” is unique in the solar system. Photo: Earthrise from Lunar Reconnaissance Orbiter, December 2015 (NASA).Creationists say that Earth had its water from the beginning, but of course, they are not allowed into the debate, because they (with their peer-reviewed journals) are discriminated against as a class. Faced with an unending controversy, the two materialists went to a gun range to do some target practice. Using bullets of antigorite, a serpentine mineral they consider a “proxy” for carbonaceous chondrites (a common type of meteor), they shot at pumice, which they consider a “proxy” for the early crust. What did they get? Fragments of breccia (broken pieces of stuff), and some pieces of glass from the impact melt. If the CC’s came with any H2O, they figure that about 30% of it might have survived in the glass. Here it is in jargonese:Dynamical models and observational evidence indicate that water-rich asteroids and comets deliver water to objects throughout the solar system, but the mechanisms by which this water is captured have been unclear. New experiments reveal that impact melts and breccias capture up to 30% of the water carried by carbonaceous chondrite–like projectiles under impact conditions typical of the main asteroid belt impact and the early phases of planet formation. This impactor-derived water resides in two distinct reservoirs: in impact melts and projectile survivors. Impact melt hosts the bulk of the delivered water. Entrapment of water within impact glasses and melt-bearing breccias is therefore a plausible source of hydration features associated with craters on the Moon and elsewhere in the solar system and likely contributed to the early accretion of water during planet formation.We hope they had fun shooting, because logically, they can’t use the results of target practice to extrapolate to the formation of the Earth and its oceans. It might make them feel good to be published for their recreational sport, but proxies are not realities. Theory-laden proxies—relying on assumptions as they do—can mislead. And tiny bits of stuff under artificial conditions may have nothing to do with planetary-sized events of the unobservable past. Anyway, off they went from the range, telling the story of How the Earth Got Its Water.The fact that the amorphous, glassy component—not projectile survivors—constitutes the primary reservoir for impact-delivered water is critical for extrapolating these experiments. Impact melt production increases with impact speed. If impact melt derived primarily from the target successfully traps water during collisions among planetary bodies (as it does in experiments), then higher-speed impacts may still deliver significant quantities of water.It may, or it may not. That’s a big ‘If.’ Did they quantify if target practice by blind shooters could deliver 1.333 billion cubic kilometers of water to the Earth? No. Did they find corresponding relative amounts of water on the moon, Venus, Mercury and Mars? No. Did they determine if the deuterium content of CC water corresponds to the amount in ocean water? (That’s what shot down the comet-water-balloon theory, 22 March 2017.) No. Did they calculate the volume of CC’s that would have had to hit Earth to contribute to the present water content of the Water Planet? No. Did they determine if that’s how the water 100 miles under the crust got there? No. Did they critique the accretion theory of planet formation? No. Did they read Genesis 1? No.But because their theory is 100% naturalistic, purposeless, aimless, and unverifiable, it got published by the AAAS. Pretty good reward for a day at the shooting range.Once upon a time, blind shooters squirted water at a dry planet. From that water, life emerged, and evolved into scientists who tell just-so stories. Isn’t science wonderful.Remember to get Dr Henry Richter’s book Spacecraft Earth to learn about all the design evidences for Earth’s habitability. The evidence convinced this spacecraft pioneer (PhD, Caltech) that Earth was intelligently designed to be habitable (Isaiah 45:18). Later, the Bible convinced him that the Designer was God, who was not silent, but left us a “Guide for Passengers” in his revealed Word. (Visited 376 times, 1 visits today)FacebookTwitterPinterestSave分享0
LATEST STORIES Back on track Grace Poe files bill to protect govt teachers from malicious accusations Sports Related Videospowered by AdSparcRead Next Private companies step in to help SEA Games hosting PH underwater hockey team aims to make waves in SEA Games PLAY LIST 02:42PH 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 City01:07Trump talks impeachment while meeting NCAA athletes02:49World-class track facilities installed at NCC for SEA Games02:11Trump awards medals to Jon Voight, Alison Krauss PDEA chief backs Robredo in revealing ‘discoveries’ on drug war Oil plant explodes in Pampanga town ‘We are too hospitable,’ says Sotto amid SEA Games woes SEA Games hosting troubles anger Duterte View comments Seoul suggested the joint application after a historic inter-Korean summit in April 2018, and Pyongyang responded positively to the idea. It was the first case of a joint inscription on the list.Dating back to the Three Kingdoms period (A.D. 220-280), ssireum is a folk tradition in which, standing in a sand pit, two wrestlers wearing long fabric belts around their waists and thighs grip each other’s belt and fight to topple their adversary.It was widely played on various holidays and festivals, though it has slowly lost its popularity and given way to modern sports and entertainment in South Korea. But in the North, it is still a popular sport, with a large competition held in Pyongyang at the Chuseok holiday every fall. YonhapADVERTISEMENT US judge bars Trump’s health insurance rule for immigrants Ssireum. Yonhap via The Korea Herald/Asia News NetworkSEOUL — South and North Korea plan to hold talks on ways to boost exchanges in “ssireum,” traditional Korean wrestling, at the North’s Mount Kumgang next week, a sporting body here said Wednesday.Park Pal-yong, the chief of Seoul’s Korea Ssireum Association plans to embark on a two-day cross-border trip next Tuesday to meet with North Korean officials in charge of the sport, according to the KSA.ADVERTISEMENT ‘We are too hospitable,’ says Sotto amid SEA Games woes Don’t miss out on the latest news and information. MOST READ “One of the items to be on the table is the co-hosting of the ssireum festival slated for June,” association official Jeong In-gil said.The event, named the Dano Festival, is set to take place in South Korea’s Gangwon Province, but that could change if the two sides agree to co-host it, he said, adding that several rounds of working-level meetings will follow to arrange details.FEATURED STORIESSPORTSPrivate companies step in to help SEA Games hostingSPORTSUrgent reply from Philippine football chiefSPORTSPalace wants Cayetano’s PHISGOC Foundation probed over corruption chargesThe two Koreas also plan to work for the unification of the different terminology and rules of ssireum and push for personnel exchanges, according to the association.Such efforts have gathered steam since November after South and North Korea successfully pushed for the joint inscription of ssireum as an Intangible Cultural Heritage of Humanity by UNESCO’s World Heritage Committee.
Trump campaign, GOP groups attack Google’s new ad policy LATEST STORIES Sports Related Videospowered by AdSparcRead Next “I swear to God. I will fuck you up, you and your wife. I will fuck you up,” Westbrook said. Cayetano’s beef with ABS CBN? Unfair air time during 2016 campaign PLAY LIST 02:25Cayetano’s beef with ABS CBN? Unfair air time during 2016 campaign00:50Trending Articles00:50Trending Articles02:42PH 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 City01:07Trump talks impeachment while meeting NCAA athletes02:49World-class track facilities installed at NCC for SEA Games02:11Trump awards medals to Jon Voight, Alison Krauss Private companies step in to help SEA Games hosting It was unclear from the video what the Jazz hecklers said to initiate the profanity-laced response from Westbrook but the player said he heard a racial slur.Westbrook was not penalized by the game officials in the Thunder’s 98-89 victory in front of a crowd of 18,300 at Vivint Smart Home Arena. Westbrook finished with a near triple double, 23 points, 11 rebounds and eight assists.Oklahoma City Thunder’s Russell Westbrook gets into a heated verbal altercation with fans in the first half of an NBA basketball game against the Utah Jazz, Monday, March 11, 2019, in Salt Lake City. (AP Photo/Rick Bowmer)Westbrook issued a statement after the game to reporters but declined to answer questions.“The young man and his wife in the stands told me to get down on my knees like you used to,” Westbrook said. “And for me that is completely disrespectful. I think it is racial. It is inappropriate.“There are people that come to the games to say mean disrespectful things about me and my family. For many years I have done all the right things and never done anything to hurt or harm anybody. Never been in any trouble. Never fought a fan.”ADVERTISEMENT MOST READ Thunder beat Jazz to sweep NBA season series 1 dead, 3 injured in Quezon road crash Don’t miss out on the latest news and information. The incident was similar to another outburst from Westbrook in the final of last year’s first round playoff series in Utah.Russell Westbrook explains the verbal altercation he had with Jazz fans during tonight’s game, saying fans told him “to get down on my knees like you used to.” (via @espn_macmahon) pic.twitter.com/aObvg6ZuPT— SportsCenter (@SportsCenter) March 12, 2019“Here in Utah, man, a lot of disrespectful, vulgar things are said to the players here with these fans,” Westbrook said at the time. “It’s truly disrespectful. Talk about your families, your kids.”The NBA’s worst incident between players and fans took place during a 2004 brawl between Indiana Pacers players and Detroit Piston spectators which resulted in nine players being suspended.The brawl started with 46 seconds left in a game in Detroit and began with Pistons centre Ben Wallace and Pacers forward Ron Artest getting tangled up. A fight broke out between the players.After the fight was broken up, Artest charged into the stands to confront a fan that had thrown a drink at him.That sparked a massive brawl between players and a number of fans that lasted several minutes. Artest ended up with an 86-game suspension and Wallace got six games. P2.5 B shabu seized in Makati sting, Chinese national nabbed Urgent reply from Philippine football chief SEA Games hosting troubles anger Duterte Things get heated between Russell Westbrook and Utah Jazz fans again. “I’ll f*ck you up. You and your wife,” he says. Not sure what these fans said to him, but he also had issues with Jazz fans during the postseason. pic.twitter.com/LquwRmLVNy— Eric Woodyard (@E_Woodyard) March 12, 2019Russell Westbrook threatened a female fan and her male companion when the Oklahoma City Thunder player got into another heated exchange with Utah spectators during an NBA game on Monday.FEATURED STORIESSPORTSPrivate companies step in to help SEA Games hostingSPORTSUrgent reply from Philippine football chiefSPORTSPalace wants Cayetano’s PHISGOC Foundation probed over corruption chargesThe confrontation between Westbrook and the Jazz fans was caught on video and posted to social media.ADVERTISEMENT Lacson backs proposal to elect president and vice president in tandem View comments Hong Kong tunnel reopens, campus siege nears end