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June 8 - Using high speed x-ray video, scientists at Harvard University have shown that dogs - like cats - use an innate knowledge of physics to drink. Ben Gruber reports.
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a year ago
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Scientists at Cern have managed to trap elusive antimatter atoms for a quarter of an hour. It is a huge step forward on last year's efforts when they were able to hold the mysterious particles for ...
2m 1s |
a year ago
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Australian scientists and politicians are battling South Africa to snare a multibillion dollar science project.
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2 years ago
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auriciangelescu
The daughter of a brilliant but mentally disturbed mathematician (recently deceased) tries to come to grips with her possible inheritance: his insanity. Complicating matters are one of her fathers ex-...
1h 36m 2s |
2 years ago
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How informed are the electorate and politicians on important scientific issues? Does the media do a good job of informing the public on the science behind such matters as climate change, stem cell ...
37m 11s |
2 years ago
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826
It's a race now...a race to drill the relief wells and take our last chance at killing this monster before the whole weakened, wore out, blown out, leaking and failing system gives up it's last gasp in a horrific crescendo. We are not even 2 months into it, barely half way by even optimistic estimates. The damage done by the leaked oil now is virtually immeasurable already and it will not get better, it can only get worse. No matter how much they can collect, there will still be thousands and thousands of gallons leaking out every minute, every hour of every day. We have 2 months left before the relief wells are even near in position and set up to take a kill shot and that is being optimistic as I said. Over the next 2 months the mechanical situation also cannot improve, it can only get worse, getting better is an impossibility. While they may make some gains on collecting the leaked oil, the structural situation cannot heal itself. It will continue to erode and flow out more oil and eventually the inevitable collapse which cannot be stopped will happen. It is only a simple matter of who can "get there first"...us or the well. We can only hope the race against that eventuality is one we can win, but my assessment I am sad to say is that we will not. The system will collapse or fail substantially before we reach the finish line ahead of the well and the worst is yet to come. Sorry to bring you that news, I know it is grim, but that is the way I see it....I sincerely hope I am wrong. We need to prepare for the possibility of this blow out sending more oil into the gulf per week then what we already have now, because that is what a collapse of the system will cause. All the collection efforts that have captured oil will be erased in short order. The magnitude of this disaster will increase exponentially by the time we can do anything to halt it and our odds of actually even being able to halt it will go down. The magnitude and impact of this disaster will eclipse anything we have known in our life times if the worst or even near worst happens... We are seeing the puny forces of man vs the awesome forces of nature. We are going to need some luck and a lot of effort to win... and if nature decides we ought to lose, we will.... Reference materials: On April 1, a job log written by a Halliburton employee, Marvin Volek, warns that BP's use of cement "was against our best practices." An April 18 internal Halliburton memorandum indicates that Halliburton again warned BP about its practices, this time saying that a "severe" gas flow problem would occur if the casings were not centered more carefully. Around that same time, a BP document shows, company officials chose a type of casing with a greater risk of collapsing. http://www.nytimes.com/2010/06/06/us/06rig.html?pagewanted=1&sq=at_issue... Mark Hafle, the BP drilling engineer who wrote plans for well casings and cement seals on the Deepwater Horizon's well, testified that the well had lost thousands of barrels of mud at the bottom. But he said models run onshore showed alterations to the cement program would resolve the issues, and when asked if a cement failure allowed the well to "flow" gas and oil, he wouldn't capitulate. Hafle said he made several changes to casing designs in the last few days before the well blew, including the addition of the two casing liners that weren't part of the original well design because of problems where the earthen sides of the well were "ballooning." He also worked with Halliburton engineers to design a plan for sealing the well casings with cement.
9m 58s |
2 years ago
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