Oggi e' 23.06.2017
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  • ESA Approves Gravitational-Wave Hunting Spacecraft For 2034
    The European Space Agency has approved the Laser Interferometer Space Antenna mission designed to study gravitational waves in space. The spacecraft is slated for launch in in 2034. New Scientist reports: LISA will be made up of three identical satellites orbiting the sun in a triangle formation, each 2.5 million kilometers from the next. The sides of the triangle will be powerful lasers bounced to and fro between the spacecraft. As large objects like black holes move through space they cause gravitational waves, ripples which stretch and squeeze space-time. The LISA satellites will detect how these waves warp space via tiny changes in the distance the laser beams travel. In order to detect these minuscule changes, on scales less than a trillionth of a meter, LISA will have to shrug off cosmic rays and the particles and light from the sun. The LISA Pathfinder mission, a solo probe launched in December 2015, proved that this sensitivity was possible and galvanized researchers working to realize the full LISA mission.

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  • Scientists Discover How To Stop Luggage From Toppling On the Race Through the Airport
    An anonymous reader quotes a report from The Guardian: Scientists have worked out why suitcases tend to to rock violently from one wheel to the other until they overturn on the race through the airport. This most pressing of modern mysteries was taken on by physicists in Paris, who devised a scale model of a two-wheeled suitcase rolling on a treadmill and backed up their observations with a pile of equations and references to holonomic restraints, finite perturbations and the morphing of bifurcation diagrams. Fortunately for non-physicists, the findings can be reduced to simpler terms. For the suitcase to rock it had to hit a bump or be struck in some other manner; the faster the suitcase was being pulled, the more minor the bump needed to set it off. So far, so obvious. But Sylvain Courrech du Pont wanted to know more. Why did a rocking suitcase swerve and make such violent movements that it might eventually topple over? After more treadmill tests and more equations, the answer popped up: because a suitcase's handle pulls from the middle and the wheels are at its sides, the suitcase swerves inwards whenever it tilts up on one wheel. If the rocking overcomes the dampening effect that happens when each wheel touches the ground again, the suitcase will keep on rocking or eventually flip over. In conclusion, the researchers discovered that "when a suitcase starts to rock out of control, the correct response is not to slow down but to pull it faster." The scientists have published their findings in the journal Proceedings of the Royal Society.

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  • Home Improvement Chains Accused of False Advertising Over Lumber Dimensions
    per unit analyzer writes: According to Consumerist, an attorney has filed a class-action lawsuit charging Home Depot (PDF) and Menards (PDF) with deceptive advertising practices by selling "lumber products that were falsely advertised and labeled as having product dimensions that were not the actual dimensions of the products sold." Now granted, this may be news to the novice DIYer, but overall most folks who are purchasing lumber at home improvement stores know that the so-called trade sizes don't match the actual dimensions of the lumber. Do retailers need to educate naive consumers about every aspect of the items they sell? (Especially industry quirks such as this...) Furthermore, as the article notes, it's hard to see how the plaintiffs have been damaged when these building materials are compatible with the construction of the purchaser's existing buildings. i.e., An "actual" 2x4 would not fit in a wall previously built with standard 2x4s -- selling the something as advertised would actually cause the purchaser more trouble in many cases.

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  • McDonald's Hits All-Time High As Wall Street Cheers Replacement of Cashiers With Kiosks
    McDonald's is expected to increase its sales via new digital ordering kiosks that will replace cashiers in 2,500 restaurants. As a result, the company's shares hit an all-time high, rallying 26 percent this year through Monday. CNBC reports: Andrew Charles from Cowen cited plans for the restaurant chain to roll out mobile ordering across 14,000 U.S. locations by the end of 2017. The technology upgrades, part of what McDonald's calls "Experience of the Future," includes digital ordering kiosks that will be offered in 2,500 restaurants by the end of the year and table delivery. "MCD is cultivating a digital platform through mobile ordering and Experience of the Future (EOTF), an in-store technological overhaul most conspicuous through kiosk ordering and table delivery," Charles wrote in a note to clients Tuesday. "Our analysis suggests efforts should bear fruit in 2018 with a combined 130 bps [basis points] contribution to U.S. comps [comparable sales]." He raised his 2018 U.S. same store sales growth estimate for the fast-food chain to 3 percent from 2 percent.

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  • The US Government Wants To Permanently Legalize the Right To Repair
    An anonymous reader quotes a report from Motherboard: In one of the biggest wins for the right to repair movement yet, the U.S. Copyright Office suggested Thursday that the U.S. government should take actions to make it legal to repair anything you own, forever -- even if it requires hacking into the product's software. Manufacturers -- including John Deere, Ford, various printer companies, and a host of consumer electronics companies -- have argued that it should be illegal to bypass the software locks that they put into their products, claiming that such circumvention violated copyright law. Thursday, the U.S. Copyright Office said it's tired of having to deal with the same issues every three years; it should be legal to repair the things you buy -- everything you buy -- forever. "The growing demand for relief under section 1201 has coincided with a general understanding that bona fide repair and maintenance activities are typically non infringing," the report stated. "Repair activities are often protected from infringement claims by multiple copyright law provisions." "The Office recommends against limiting an exemption to specific technologies or devices, such as motor vehicles, as any statutory language would likely be soon outpaced by technology," it continued.

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  • Ron Howard Steps In To Direct Han Solo Movie
    Two days after directors Phil Lord and Chris Miller were let go in the middle of shooting the Star Wars Han Solo spinoff movie, the spot has been filled. Ron Howard has been named the new direct of Lucasfilm and Disney's Han Solo movie, according to The Hollywood Reporter. From the report: Howard, sources tell The Hollywood Reporter, will meet with the actors -- Alden Ehrenreich is playing the iconic smuggler, Donald Glover is playing Lando Calrissian, with Woody Harrelson, Emilia Clarke and Thandie Newton also on the roll call -- to soothe a rattled set and will pore over a rough edit to see what the project needs. Filming will resume on July 10. Howard, who directed 1995's Apollo 13 and won an Oscar for helming 2002's A Beautiful Mind, comes to the Han Solo film with several connections to George Lucas and the worlds of Lucasfilm. He appeared in Lucas' 1973 breakout film American Graffiti and helmed Lucas' 1988 pet fantasy project Willow. Howard also revealed on a podcast in 2015 that Lucas had approached him to direct 1999's Star Wars prequel The Phantom Menace. Though his recent movies, including Inferno and In the Heart of the Sea, have been costly ventures that underperformed at the box office, Howard is considered to be a safe choice to complete the task, someone who will ably finish the movie while being a calming presence on set.

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  • Wireless and Drone Execs Praised President Trump as He Pledged To Cut Down Regulations
    U.S. President Donald Trump offered support for emerging technologies including unmanned aerial vehicles and next-generation wireless networks in a meeting on Thursday with the chiefs of AT&T and General Electric and other business leaders. From a report: For the likes of AT&T CEO Randall Stephenson, the public audience with Trump offered an opportunity to continue nudging the U.S. government -- including in a scheduled, private session with the leader of the Federal Communications Commission earlier Thursday -- to cut back on restrictions that make it difficult for AT&T and other telecom giants to grow their footprint and deploy the new technologies, such as 5G wireless. Speaking with Recode later Thursday, Marcelo Claure, the chief executive of Sprint, said that he and others in his industry had emphasized to Trump that the government must help them deploy new tools like small cells -- essentially, mini cell towers that improve wireless connectivity. Trump, for his part, promised Thursday to cut down on "too many years of excessive government regulation" to enable innovators and investments to offer new cutting-edge tools in health care, science, medicine and communication. "We have had regulation that's been so bad, so out of line that it's really hurt our country," he said.

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