Shaun White wins third halfpipe Olympic gold with clutch performance on final run

first_imgBONGPYEONG, South Korea >> Boxing had its pivotal rumble in the jungle. Snowboarding now has its climactic contest. Call it pandemonium in the pipe.With the world’s best boarders spinning and flipping down the Olympic halfpipe Wednesday, it was Shaun White who claimed victory by linking two of the hardest tricks possible — a pair of gargantuan double-cork 1440s. Those tricks sent him past Japan’s Ayumu Hirano and Australia’s Scotty James in a duel for the ages.That frontside 1440 was the same …last_img read more

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Saturn Moons Continue to Surprise Scientists

first_imgJust days before a long-awaited dive into the plume of Enceladus (see PhysOrg and JPL press release, flyby stats and news release), Cassini found another surprise in the Saturn system: a moon with rings.    A Jet Propulsion Lab press release on March 6 reported that the large moon Rhea may have rings – the first ring system detected around a satellite of a planet.  The rings, composed of particles up to a meter in size, were not detected visually, but are inferred from electromagnetic effects detected by Cassini’s instruments.  Dips in electron density were seen on both sides of the moon, suggesting the presence of rings.  They apparently extend out eight moon diameters from Rhea.  See also the National Geographic story.  More detail is available at the Planetary Society blog, where Emily said the discovery was unexpected.    The debris orbiting Rhea could have resulted from a comet impact in the moon’s past.  It appears to be organized into three ringlets and is composed of pebble to boulder-sized particles, based on inference of what material could cause the dips in electron density.  No small dust has yet been detected.  What is most mysterious is how the debris could remain there for millions or billions of years.  The original paper in Science1 said that boulders could remain in orbit for 70 million years, but that would only amount to 1/64 the assumed age of the solar system.  Richard Kerr commented on the discovery in the same issue of Science.2  He brought up some reasons why the rings shouldn’t exist:But ring specialists still have their reservations.  Such rings, they say, are possible but improbable.  First, just the right sort of impact would probably have been required to blast material off the icy moon and into orbit.  Then the ring particles would have had to survive millions if not billions of years being torn apart by the tidal pull of Saturn and worn down to dust by eroding small impacts.  Most constraining, perhaps, is the “incredibly low” limit on dust around Rhea set by Cassini’s camera, says Joseph Burns of Cornell University, who is on the imaging team.  Ring boulders must shed some dust, and even tiny amounts of dust show up when backlit by the sun.If the rings survive further observational scrutiny, Cassini scientists will have another age problem on their hands.  In addition to the geysers on Enceladus, the Rhea rings look like young phenomena that are supposed to be billions of years old, according to the scientific consensus.    To prepare for the historic close encounter with Enceladus, watch the Enceladus Virtual Tour.  A map of the encounter is available, and a graph of the plume trajectory.  For more about the moon Enceladus, see the Enceladus main page and our reports from 02/17/2007, 07/11/2006 and 11/28/2005.  Geeks will drool over the Mission Description (PDF).  For latest news, see the new Enceladus blog begun on March 10 by the Cassini team.1.  Jones et al, “The Dust Halo of Saturn’s Largest Icy Moon, Rhea,” Science, 7 March 2008: Vol. 319. no. 5868, pp. 1380-1384, DOI: 10.1126/science.1151524.2.  Richard A. Kerr, “Electron Shadow Hints at Invisible Rings Around a Moon,” Science, 7 March 2008: Vol. 319. no. 5868, p. 1325, DOI: 10.1126/science.319.5868.1325.Let’s all sing together:My Rhea lies over at Saturn,My Rhea has rings that can’t be;Their real lies tell us it’s old stuff,O bring back some Rheality.    You Rhealize what’s going on, don’t you?  All observations must be forced into the old-age assumption, whether they fit or not.  This is known as science.    Enceladus is the moon to watch for a reality check.  Come back Wednesday and Thursday this week for late breaking news about the dramatic flyby as soon as it is made public.  If you downloaded CASSIE 3D tour imager, you can zoom in on the encounter to visualize the history about to be made.  Keep up on the Enceladus blog, too.(Visited 8 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

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No need to switch hybrid maturities yet

first_imgShare Facebook Twitter Google + LinkedIn Pinterest In many areas of the Eastern Corn belt planting has been delayed due to wet spring weather. While some growers have been fortunate enough to plant most of their corn, others have not been able to get started or are considering the need to replant. With the continued planting delays some growers may begin to wonder if they should switch to earlier maturing hybrids.When considering late-planted corn, it is important to keep in mind that hybrids can adjust the amount of Growing Degree Days required to reach maturity. In this C.O.R.N Newsletter Article, Ohio State’s Peter Thomison states: “In Ohio and Indiana, we’ve observed decreases in required heat units from planting to kernel black layer which average about 6.8 growing degree days (GDDs) per day of delayed planting. Therefore a hybrid rated at 2800 GDDs with normal planting dates (i.e. late April or early May) may require slightly less than 2600 GDDs when planted in late May or early June, i.e. a 30 day delay in planting may result in a hybrid maturing in 204 fewer GDDs (30 days multiplied by 6.8 GDDs per day).” Because hybrids can adjust their required GDDs, late-planted hybrids can still reach physiological maturity before first killing frost in the fall.In his article, “Update: ‘Safe’ Hybrid Maturities for Delayed Corn Planting in Indiana”, Bob Nielsen includes two useful charts that list “safe” maturities for late planting dates. Based on the data in the charts, Purdue experts do not recommend switching to earlier maturing hybrids until the second week of June.It looks like the weather will allow for more corn planting progress this week, however, if delays continue it is important to keep in mind that growers can plant typical hybrid maturities adapted to their areas late into May and even early June.last_img read more

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Trump Administration proposes new infrastructure plan

first_imgShare Facebook Twitter Google + LinkedIn Pinterest The Trump administration revealed its outline for improving the nation’s highways, bridges, waterways, railways and rural infrastructure. The $200 billion federal spending proposal is designed to stimulate $1.5 trillion in total infrastructure investments. Allocating $50 billion to state and local governments in the form of block grants, the plan calls for 25% of total funds to be directed toward revitalizing rural America, including expanded rural broadband access.The plan also proposes establishing a “One Agency, One Review” structure for the environmental review process conducted prior to the start of new construction projects. Intended to minimize the duplication of reports and analyses of environmental impact, the proposal would establish a 21-month deadline for lead agencies to complete their review.last_img read more

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Hands On: The Mosaic Photobook

first_imgWhen you’re ready, you tap ‘Place Order,’ and if you haven’t yet entered your information, you quickly do so.After a couple days, your book arrives in bare, beautiful packaging that would make Apple blush. A Mosaic book costs $20. At first, that price seemed too high to overcome the inertia of people saying “Meh, I’ll just look at my pictures on my computer.” But I didn’t realize until I saw it that the book that would arrive on my porch in days would be something I’d want to keep around forever. The touchscreen will not replace the book. Until some possible future when the two technologies are indistinguishable from each other, the tangible, sensuous, unpowered nature of the book will never give way to cold, glowing glass. Mosaic proved that once again when it was revealed in October, and now it’s live and available to all iPhone owners.Mosaic is an iPhone app that lets you print dreamlike photo albums on demand. You choose up to 20 photos from your phone’s camera roll, arrange them in a virtual photobook in the Mosaic app, tap ‘Place Order,’ and the real book arrives on your doorstep in days. A Web Developer’s New Best Friend is the AI Wai… When I expressed surprise at how the physical book surpassed my expectations, Caleb Elston, head of the Mosaic team, humbly said, “We’ve sweated the details.” Every detail, down to the ribbon that frees the book from its box, has been tuned to hit the right visual and tactile notes. My Mosaic book is exquisite. My roommate and I took drugstore disposable film cameras to Burning Man this year and got the prints on CDs. I chose 20 of my favorite of these ethereal, grainy shots for my Mosaic, and I can’t believe how beautifully they turned out.I can see ordering these as heartfelt gifts. I can see a whole section of my bookshelf for them. They look like totems from the film Inception, personal tokens for remembering dreams.Mosaic for iPhone is the first release from the team that brought us the mobile chat room, Yobongo, after its acquisition by Mixbook. The team was tasked with bringing photo album printing from the desktop to mobile, just as it did with the chat room before. Mosaic isnt the first solution for turning digital photos into books, but it may be the first with such a realistic book-building experience on the mobile device. And, wow, did they pull it off. Why Tech Companies Need Simpler Terms of Servic…center_img Top Reasons to Go With Managed WordPress Hosting Related Posts The tactile experience of the product begins on the phone. You can endlessly remix the photos that appear in the iconic cover frame by tapping the shuffle button.Then you drag your photos into the right order, and you can turn every page of the book with your finger onscreen to make sure it looks right. jon mitchell Tags:#Mosaic#photography 8 Best WordPress Hosting Solutions on the Marketlast_img read more

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