first_imgDating of artifacts and fossils may become much more common thanks to a new instrument.Without doubt, radiocarbon dating has been an exciting and contentious process. It has been able to resolve disputes about the construction date of archaeological sites, such as Hezekiah’s Tunnel in Jerusalem (9/10/03). Creationists find radiocarbon all over in places it shouldn’t be (see Real Science Radio’s list), such as coal and diamonds; evolutionists cry “contamination!” (Note: all radiocarbon should vanish from a sample before 100,000 years). Resolving disputes has been costly and time-consuming. Typically, the best results come from labs with equipment for accelerator mass spectroscopy (AMS), but only 100 or so labs worldwide have the equipment.What would happen if you could get radiocarbon dates almost as accurate as AMS at one tenth the cost, within two hours? This may become common, if the encouraging announcement from Italy’s Istituto Nazionale di Ottica lives up to its promises. Science Daily says,The instrument, which uses a new approach called saturated-absorption cavity ring-down (SCAR), is described in The Optical Society’s journal for high impact research, Optica. SCAR offers significant time and cost savings compared to the standard approach for carbon dating and could be useful for a host of other applications such as measuring emissions from fossil fuels or certifying the amount of biogenic content in biofuels.The equipment, which works on a laser cavity principle, is smaller, faster, and cheaper. It costs a tenth of AMS. It might even become portable. Each test, furthermore, is half the cost of AMS, the article says:The researchers report that their SCAR instrument can detect radiocarbon dioxide concentration with a precision of 0.4 percent, which approaches the 0.2 percent precision of the best accelerator mass spectrometers. The new technique can deliver results in just two hours, with each test costing about half what it would if conducted using an accelerator mass spectrometer.The researchers estimate the SCAR instrument is about 100 times smaller and 10 times cheaper than the instrumentation required for accelerator mass spectrometry. Its size and cost could decrease even more once the instrument is converted from its current tabletop version to a more portable commercial prototype.The designers envision archaeologists being able to test artifacts in the field. “This could revolutionize the approach that archaeologists use for carbon dating because they would not have to send sensitive samples away to a lab and wait weeks for a result,” one of the team members said.We hope radiocarbon dates will become much easier to obtain, so that creation researchers can test samples of coal, diamond and dinosaur bone quickly and cheaply. This technique, if it fulfills the promises, could make possible multiple tests on the same sample by different labs or teams, reducing the credibility of charges about contamination. Many more samples could be dated. There should be zero radiocarbon in samples older than 100,000 years. Enough undisputed radiocarbon-positive results on “old” samples could completely undermine the evolutionary timeline. Let’s get the data! (Visited 140 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more


first_imgLATEST STORIES LOOK: Venues for 2019 SEA Games SEA Games in Calabarzon safe, secure – Solcom chief Brace for potentially devastating typhoon approaching PH – NDRRMC Kings, Texters triumph UPLB exempted from SEA Games class suspension The Azkals are looking to extend their unbeaten start to three matches in Group F, where the Top 2 teams will clinch berths to the 2019 Asian Cup in the United Arab Emirates. But three starters from the win against Tajikistan will miss the clash against Yemen, including Javier Patino who is out due to a long term knee injury.Top defender Amani Aguinaldo is also sidelined by injury, while leftback Daisuke Sato is suspended after picking up two yellow cards in the first two games of the qualifying round.FEATURED 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 shutoutOther players like Stephan Schrock and Jeffrey Christiaens announced their retirement from the national team the past week.Dooley has turned to United States-raised wingback Matas, who has played a key role in Meralco’s rise in the Philippines Football League. View comments Don’t miss out on the latest news and information. Robredo: True leaders perform well despite having ‘uninspiring’ boss PLAY LIST 02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss03:00House honors Rodolfo Albano Jr , a veteran lawmaker, mentor and family man01:58With new role in drug war, Robredo might ‘baby’ the drug lords – Bong Go01:37Protesters 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 students02:42PH underwater hockey team aims to make waves in SEA Gamescenter_img WATCH: Streetboys show off slick dance moves in Vhong Navarro’s wedding Typhoon Kammuri accelerates, gains strength en route to PH FILE — Philippine Azkals vs Nepal in the 2019 AFC Asian Cup qualifiers. Photo by: Tristan Tamayo/Inquirer.netWith key players out due to injuries and suspension, Philippine Azkals coach Thomas Dooley is pinning his hopes on a slew of newcomers as well as returning veterans when they face Yemen in AFC Asian Cup Qualifying on Tuesday at Panaad Stadium in Bacolod City.Dooley has called up Southeast Asian Games veterans Dylan De Bruycker and Josh Grommen to join the 23-man side which also includes other newcomers Tyler Matas of FC Meralco Manila and Harry Foll who plays club football for Hansa Rostock in Germany.ADVERTISEMENT After struggling with injuries last season, Austrian League veteran Stephan Palla is also set to return to the Azkals along with Simone Rota of Davao, who has recovered from a knee injury. MOST READ Read Next Kammuri turning to super typhoon less likely but possible — Pagasa Catriona Gray spends Thanksgiving by preparing meals for people with illnesseslast_img read more


first_imgThe WBJEE results have been declared.The results of WBJEE 2011 (West Bengal Joint Entrance Examination) have been declared on Tuesday by the West Bengal Joint Entrance Examination Board (WBJEEB).The WBJEE 2011 results were declared at 2PM on Tuesday. The results are available on the websites http://results.banglarmukh.gov.in and www.wbjeeb.in.The WBJEE is held for admission to engineering courses in colleges across the state.The examination was conducted on April 17, 2011.For more news on India, click here.For more news on Business, click here.For more news on Movies, click here.For more news on Sports, click here.last_img read more


first_imgTagsTransfersAbout the authorPaul VegasShare the loveHave your say Chelsea striker Batshuayi on brink of sealing Monaco moveby Paul Vegas9 months agoSend to a friendShare the loveChelsea striker Michy Batshuayi is close to sealing a move to AS Monaco.Chelsea are now in ‘advanced talks’ to loan Batshuayi to Monaco.The striker has been ditched by Valencia after a dismal first half to the season.But Thierry Henry is a fan and believes he can get goals from the Belgian, to fire his struggling side to safety.And a deal is now close. last_img read more


Redshirt-senior Hunter Callahan winds up for a shot during a match against Oklahoma on March 6 in Columbus. OSU lost, 4-3.Credit: Samantha Hollingshead / Lantern photographerThe Ohio State’s men’s tennis team has dominated the Big Ten for roughly a decade, but trips to Northwestern on Friday and Illinois on Sunday could be tests for the Buckeyes.“It’s going to be a very tough weekend. They’re big matches,” coach Ty Tucker said.The last time No. 11 Ohio State lost a Big Ten regular season matchup was on April 24, 2005, at Northwestern. This year, the No. 19 Wildcats are not only 8-1 at home but have won six of their last seven matches. The Buckeyes hit a rough patch with losses in two matches before entering Big Ten play for good, then swept the state of Michigan with wins over both the University of Michigan and Michigan State this past week. The wins serve as a nice reminder of what OSU can do, redshirt-senior Hunter Callahan said.“A win is always good, especially after two losses in a row,” he said. “Good just to get that feeling of winning back.”Even with the taste of winning back in the Buckeyes’ mouths, Tucker said he hasn’t forgotten their recent shortcomings.“Our math is a little bit short this year as far as getting to four (points), but we have to concentrate on Northwestern,” he said.Getting through Northwestern with a win is a feat in itself, but getting out of the state of Illinois without a loss will be another story. The Buckeyes became familiar with No. 3 Illinois at the ITA Indoor Team Championship this year when the Fighting Illini ended OSU’s run with a 4-2 win. “It is still Illinois … so there’s always going to be pressure no matter what,” he said.Tucker said he is extremely familiar with rivalry, saying it’s been a “battle” for the past 15 years with Illinois.Besides the streak of 96-straight conference wins that is on the line this weekend for OSU, Tucker said there is much more that can be lost.“Your goal at the beginning of the year is to win a Big Ten championship and host an NCAA regional. That’s definitely on the line this weekend,” he said.The Buckeyes are set to take on the Wildcats at 6 p.m. Friday in Evanston, Ill. read more


first_imgBabcock said Parnell is also well-positioned for the work: “Parnell, in his previous work on AK LNG, moved the project along to a point it had really never reached before. And he stands ready to evaluate where we are as we move forward and advise the governor-elect.” Dunleavy announced his selection of Babcock as chief of staff during a speech at an Alaska Miners Association convention in Anchorage. Dunleavy said Babcock has a lot of experience and he has faith in him. The LNG project proposal is an 807 mile north-to-south pipeline from the North Slope oil and gas field to the liquefaction plant and marine terminal on the Kenai Peninsula, in Nikiski. Facebook0TwitterEmailPrintFriendly分享Former Alaska Governor Sean Parnell was named as Governor-elect Mike Dunleavy’s special adviser on the AKLNG project.last_img read more