Ripples in spacetime suggest a black hole swallowed a neutron star

first_img Taking 3 and 5🌞masses as our “cut-off” labels for #NeutronStars or #BlackHoles is a useful rule-of-thumb but it could be wrong – or at least not the full picture. So #S190814bv *could* still be 2 merging #BlackHoles… Lots more careful analysis may tell us the answer!… 3/5 pic.twitter.com/0RSc5jk0xc— LIGO (@LIGO) August 17, 2019 7 Tags 16 Photos That throws up an exciting possibility that one of the black holes would be lighter than any black hole we’ve ever seen before. We can’t lose!If the event is confirmed as a neutron star-black hole merger, it would complete LIGO and Virgo’s trifecta of cosmic detections. The facilities have seen black holes merge with black holes and neutron stars merge with neutron stars, but they’ve never seen the two obliterate one another.The next step is to focus telescopes on the small section of the sky S190814bv came from. It’s relatively close, by cosmic standards, at just 900 million light-years away. The gravitational waves race out faster than other electromagnetic waves, giving astronomers a chance to try and detect other signals emitted by the event. What will we see?”We will either see a neutron star being ripped apart by a black hole, or getting swallowed whole like Pac-Man swallowing a ghost,” says Simon Stevenson, an astronomer with Swinburne University of Technology in Australia. “Either way, we are in for a show!”  Share your voicecenter_img What is a black hole? The universe’s dark, mysterious monsters Comments Black hole, meet neutron star. Neutron star, this is black hole. Play nice. Carl Knox/OzGrav ARC Centre of Excellence Astronomers watching the cosmos for faint ripples in space-time may have detected a black hole swallowing up a neutron star for the very first time. Gravitational wave observatories in the US and Europe were switched back on after upgrades in April to hunt for these extreme cosmic events, and since then have detected 23 potential cosmic wobbles. The latest is perhaps the most exciting yet — and it’s also potentially the most puzzling.The event, designated S190814bv, was detected on Aug. 14 by the finely-tuned lasers of the twin LIGO detectors in the US and the Virgo detector in Italy. The facilities picked up ripples in the fabric of the universe and have, tentatively, suggested they resulted from a collision between a black hole and a small, dense star known as a “neutron star”.The facilities have seen potential black hole-neutron star collisions in the past, but none have been adequately verified. Since switching back on in April, only three candidates for this insane type of cosmic collision have been presented with varying levels of confidence. That’s because the detectors are so fine-tuned they sometimes flag noise as real events.For S190814bv, the chance the newly-detected signal is just noise is 1 in 10 septillion years.That would even put Han Solo off believing S190814bv is anything but a neutron star-black hole merger, but the researchers are still urging caution. It could be, they say, two merging black holes. Sci-Techlast_img read more

Tablet or Smartphone It Matters When Designing CloudBased Products

first_img This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. Entrepreneurs are building cloud-based products for customers with an ever-growing list of ways to access those products. There’s the web browser, tablets, smartphones, phablets (which are still incredibly awkward), wearables, browser apps, plugins, bookmarklets, etc. Who knows what devices will deliver software products in five years (my money is on the computerized contact lens).The interesting part is that for any given piece of software, consumers are accessing it via different devices for different reasons. They’ll use the mobile phone app for a certain task while using the desktop for something else. Or they’ll use the tablet app for one thing, but the mobile phone app for another. These are the behaviors that must be understood to deliver a satisfying and delightful product experience. Entrepreneurs need to know which device customers are using to build appropriately.Related: The Man Behind Google Docs on Opportunities in the CloudThis “By Device-Action” concept is best illustrated with an example. At Kashoo, the company where I work, we build cloud accounting software for small business owners. As with most cloud-based applications, our customers can access Kashoo via web browser, a native iPad app and a native iPhone app. The typical Kashoo customer is what we consider the “new entrepreneur.” They’re not tied to a desk. They don’t work five eight-hour days. For better or for worse, the line between work and personal is blurry at best. Instead, they work from wherever, whenever, thanks to the devices that allow them to.Customer research and data analysis has showed us that our customers are doing specific accounting tasks on specific devices. For example, they’re using the iPhone app to quickly snap a picture of an expense receipt.That makes sense. Imagine someone at an airport food court opening up their laptop and holding a receipt in front of their webcam. No one would.Box is another great example. Typically, document generation happens on the desktop but once uploaded to Box, collaboration, access, editing, sharing and plenty more happens most often via mobile devices. Box understands this product use by device-action and thus builds accordingly.Extracting trends from your app analytics will help you understand how your customers are accessing the product and what specific tasks the doing. When the product is in its infancy, without a significant dataset, ask your current and potential customers what they might use your tablet app for versus what they’d use your smartphone app for. Have them tell you what they’d expect to get out of the desktop app. You’ll likely be surprised by their responses and you’ll have a better idea of how to build.Related: Could Nebula One Reinvent Cloud Computing for Businesses? September 4, 2014 Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now Opinions expressed by Entrepreneur contributors are their own. 3 min read Enroll Now for Freelast_img read more

A new low for nofrills flying easyJet assigns backless seat to passenger

first_imgTags: easyJet, Funny Wednesday, August 7, 2019 LUTON, ENGLAND — Hello, welcome to easyJet. Would you like a window seat, aisle seat, or a backless one?Sounds odd, we know, but for one woman a seat without a back was her only option on a recent easyJet flight from Luton to Geneva.In a photo uploaded to Twitter by fellow passenger Matthew Harris, the unidentified woman is seen sitting onboard the plane in an aisle seat that was completely missing a back. In his tweet, Harris wrote: “#easyjet beats @Ryanair to have backless seats. This is flight 2021 Luton to Geneva. How can this be allowed.”#easyjet beats @Ryanair to have backless seats. @IATA @EASA this is flight 2021 Luton to Geneva. How can this be allowed. @GeneveAeroport @easyJet_press @easyJet pic.twitter.com/EthMoWRR8P— Matthew Harris (@mattiasharris) August 6, 2019The airline responded to his tweet, thanking Harris for bringing the situation to their attention. It then asked Harris to remove the photograph and direct-message them before they investigate further.More news:  Help Princess Cruises break the world record for largest vow renewal at seaHarris refused to take down the photo, replying with: “One has to wonder how safe the rest of the plane was. This was her seat. The lady was moved to a spare seat once the flight was fully boarded. Not sure what would have happened if the flight was full.”Hi Matthew, thanks for bringing this to our attention, before we can investigate this could I ask you to remove the photograph & then DM us more info regarding this, so we can best assist you. Ross https://t.co/Qq2zhBAizh— easyJet (@easyJet) August 6, 2019In a follow-up tweet, easyJet assured passengers that despite what the photo may suggest, its main focus is safety.“Be assured safety is our highest priority and passengers would have never been allowed to fly in these seats as they were inoperative. If the flight had been full then two passengers would have been offered an alternate flight as they would not have been permitted to travel in these seats,” tweeted the airline.More news:  Virgin Voyages de-activates Quebec accounts at FirstMates agent portaleasyJet further clarified in a statement reported by Mashable that the woman was not “permitted” to sit in the seat as it was waiting for repairs.So, we guess they’re chalking it up to one big mix-up? Or is this the new standard for no-frills flying? Travelweek Group A new low for no-frills flying: easyJet assigns backless seat to passengercenter_img Posted by Share << Previous PostNext Post >>last_img read more