Latest: Chelsea 2 Liverpool 1

first_imgChelsea remain ahead but Samuel Eto’o squandered a great opportunity to extend their lead as both teams kept up a high tempo early in the second half.Eto’o looked a favourite to score when he was sent clear by Eden Hazard but Reds keeper Simon Mignolet produced a fine save with his arm.Liverpool have posed a greater threat since half-time, as Mamadou Sakho headed against the woodwork and Luis Suarez fired straight at Petr Cech.Earlier, Hazard and Eto’o had grabbed the goals as Chelsea responded brilliantly to going behind early on.Liverpool took the lead in the third minute as a Phillipe Coutinho free-kick aimed in at Luis Suarez bounced off Branislav Ivanovic’s arm and into the path of Martin Skrtel to turn home.Chelsea went on to dominate the rest of the first half, with Hazard and Frank Lampard forcing Mignolet into saves.They were deservedly level when Hazard curled a composed finish into the top corner after being set up by Oscar and then went in front thanks to Eto’o’s poached finish which squirmed through Mignolet’s grasp.Between the two goals, Cahill produced an outstanding challenge as Joe Allen prepared to pull the trigger.Chelsea have substituted both Branislav Ivanovic, who picked up a knock during the first half, and Frank Lampard, replaced by John Obi Mikel at half-time.Chelsea (4-2-3-1): Cech; Ivanovic (Cole 30), Cahill, Terry, Azpilicueta; Luiz, Lampard (Mikel 46); Willian, Oscar, Hazard; Eto’o.Subs: Schwarzer, Essien, Mikel, Schurrle, Mata, Torres.Follow West London Sport on TwitterFind us on Facebooklast_img read more

NFL Draft: Five things to watch for 49ers on Day 2

first_img[vemba-video id=”van/sc/2019/04/26/bang_70cd44d6-07f6-4330-bb3c-08cac4a615bd”]Cam Inman and Dieter Kurtenbach talk about how the San Francisco 49ers’ first choice was a no-brainerSANTA CLARA — While defensive end Nick Bosa filled the 49ers’ biggest need with his No. 2 overall selection Thursday, other holes exist, and here are five things to watch in Friday’s second and third rounds:1. Wide receiver: A slew of wide receivers should be available when the 49ers go back on the clock four picks …last_img

A Brain Wouldn’t Survive Star Travel

first_imgDon’t take a star trek unless you want to arrive demented.According to Science Daily, prolonged exposure to cosmic radiation accelerates the development of dementia, including Alzheimer’s Disease.  The headline says it: “Space Travel May Be Harmful to the Brain, Study Suggests; Prolonged Cosmic Radiation Exposure Could Hasten Alzheimer’s.”  The press release at the University of Rochester put it this way: “Houston, We Have Another Problem.”A study published in PLoS ONE (open access) found that mice at Brookhaven National Lab exposed to radiation levels similar to those in space had accelerated levels of dementia.  This damage adds to the well-known cancer risks and potential for muscle atrophy for long trips in weightlessness. The new study shows that galactic cosmic rays not only have cardiovascular and musculoskeletal impacts – they slowly destroy the brain.Why is galactic cosmic radiation so damaging?  Can’t NASA guard against it?  The press release explains,While space is full of radiation, the earth’s magnetic field generally protects the planet and people in low earth orbit from these particles. However, once astronauts leave orbit, they are exposed to constant shower of various radioactive particles. With appropriate warning, astronauts can be shielded from dangerous radiation associated with solar flares. But there are also other forms of cosmic radiation that, for all intents and purposes, cannot be effectively blocked.That’s because cosmic rays are so energetic; shielding cannot stop them, or else it creates a shower of lower-energy particles that are also damaging. Heavy iron particles sent out from galaxies would be impossible to deflect: “One would have to essentially wrap a spacecraft in a six-foot block of lead or concrete,” co-author M. Kerry O’Banion said.  Try launching that out of Earth gravity.There aren’t as many cosmic particles as those in the solar wind, but the damage they cause accumulates. “Because this radiation exists in low levels, the longer an astronaut is in deep space, the greater the exposure.”  At this rate, forget star travel; the effects may be too harsh for astronauts on NASA’s drawing-board proposals for a 3-year mission to Mars.Update 1/07/13:  Science NOW reported on results from the Mars500 mission simulation, during which six practice crewmen lived in the confinement of a space capsule for 520 days – the length of time for a Mars round trip.  In short, they became couch potatoes: lethargic, bored, and unenthusiastic.  This is another reality that mission planners will have to take into account.This updates an entry from 9/23/2006, showing that the problem has not gone away with six more years of research.  The take-home lesson should be gratitude for the safety bubble we inhabit in the cosmic shooting gallery, allowing us to live, love, and enjoy the beauty of creation.  Safe within our bubble, Hollywood screenwriters can envision epic space voyages (acted out by actors in Earth-bound studios), and astronomers can search out the most distant galaxies and strive to understand the entire universe from a protected platform – our Privileged Planet. (Visited 25 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

MH370 lost in Southern Indian Ocean

first_imgThe Malaysian Prime Minster Najib Razak announced at 2pm (GMT) that Malaysia Airlines flight MH370 with 239 and passengers and crew aboard ended its flight in the Southern Indian Ocean southwest of Perth, Western Australia.In a sombre and emotion charged announcement Mr Razak said that Immarsat the British based satellite company working with the UK Air Accidents Investigation Branch had used new analysis techniques and determined “beyond doubt” that MH370 had been lost and no-one had survived.“Therefore it is with deep sadness and regret that according to new data that MH370 ended its flight in the Southern Indian Ocean,” said Mr Razak.Searches yesterday found more debris thousands of kilometres southwest of Perth which is expected to be confirmed as coming from Malaysia Airlines flight MH370 which disappeared 18 days ago.In a day of high drama, two new debris fields were spotted by Australian and Chinese search planes between 2100km and 2500km south-west of Perth in a zone identified by the Australian Maritime Safety Authority based on US and British intelligence.Earlier Australian Prime Minister Tony Abbott told Parliament last night that HMAS Success was in the process of recovering two objects spotted by an RAAF Orion at 11.45am. The crew aboard the Orion reported seeing “grey or green circular object” and an “orange rectangular object”, Mr Abbott said after emerging from a Cabinet meeting.He said the objects identified by the RAAF Orion were separate to the objects reported by the Chinese Ilyushin IL-76.A US Navy P-8A Poseidon aircraft attempted to relocate the objects reported by the Chinese plane but were unable to do so.The P-8A, a second RAAF P3 Orion and a Japanese P3 Orion were expected to search their designated search areas until about 8pm last night.The Chinese icebreaker Xue Long is racing to the area where spotters aboard the Chinese IL-76 sighted what they termed “significant suspicious objects”.MH370, with 239 passengers and crew aboard, vanished 16 days ago on a flight from Kula Lumpur to Beijing.A Xinhua correspondent aboard the Ilyushin aircraft reported that searchers saw “two relatively big floating objects with many white smaller ones scattered within a radius of several kilometres”.The Ilyushin was returning to Perth and was at an altitude of 36,000 feet when the debris was spotted. It did not have enough fuel to descend for a closer look.Two Chinese IL-76s joined the search yesterday and departed Perth Airport at 8.45am and 9.20am as Rescue 801 and 802. They returned mid-afternoon.The sighting is 2174km south-west of Perth and in the general area of the Chinese satellite% image taken four days ago.AMSA yesterday launched 10 aircraft to search for MH370.As well as the two Chinese IL-76s, there were two RAAF P3 Orions, three ultra-long range civil jets, the US Navy P-8A Poseidon and two Japanese P3 Orions.MH370 Tribute Pagelast_img read more

7% of U.S. Consumers “Very Likely” to Buy an iPad

first_imgWhat it Takes to Build a Highly Secure FinTech … Related Posts Why IoT Apps are Eating Device Interfaces The Rise and Rise of Mobile Payment Technology About half of all iPad owners read newspapers on their tablets and more than a third read magazines. For other e-readers, these numbers hover slightly above 10%. This low number doesn’t come as a surprise, as these devices were clearly designed as e-book readers and don’t offer a convenient way to read newspapers on the Web. Even on these devices, however, the number of people who use them to read newspaper and magazines has almost doubled in the last few months. frederic lardinois Tags:#Apple#mobile#Statistics#web Role of Mobile App Analytics In-App Engagement According to ChangeWave, iPad owners mostly use their devices to surf the Web (83%), check email (71%) and use apps from the app store (56%). About a third of iPad owners use their tablets to read e-books. According to some analysts, Apple is now selling more iPads than Macs. Judging from the latest survey data from ChangeWave Research, the demand for Apple’s tablets in the U.S. will only continue to grow. About 7% of all respondents to ChangeWave’s survey said that they were “very likely” to buy an iPad and another 13% said that they were “somewhat likely” to buy one. The large majority of iPad owners said that they were “very satisfied” with their purchase, though about 11% cited the lack of Flash-support as their biggest gripe against the iPad. Focus: E-Books, Newspaper and MagazinesAmong those respondents who already owned an e-reader, the Kindle is still the most popular device (62%). After just a few weeks on the market, however, the iPad already registered a 16% share in this survey, which puts it far ahead of the Sony Reader family and Barnes & Noble’s Nook.A lot has been written about how the advent of e-readers, the iPad and similar tablets will change the magazine and newspaper industry. While the exact extent of the iPad’s influence on these industries still isn’t clear, it’s worth noting that iPad owners are far more likely to use their tablets to read newspapers and magazines than those who own any other kind of e-reader. last_img read more

1 Billion Peoples’ Interests Now Tracked by AddThis

first_img8 Best WordPress Hosting Solutions on the Market marshall kirkpatrick Tags:#Data Services#web Related Posts AddThis, one of the leading link sharing services used by sites all around the web (including this one), announced today that it now offers publishers information about the types of interests their readers and content sharers have demonstrated on the other sites they have visited. The company says it sees 1 billion unique people every month, a very substantial portion of the internet, and tracks their interests with cookies.Privacy-first advocates may raise concerns about tracking like this, but for publishers interested in learning more about their audiences and the people who help distribute their content, the information could prove quite valuable. Unfortunately, the interests exposed right now are fairly general (music, education) and available only through a dashboard view to publishers. If that data were to be made available programmatically, through an Application Programming Interface (API), then some really interesting recommendations and other services could be built on top of it.We interviewed Hooman Radfar, CEO of AddThis partent company ClearSpring, about all this kind of data in March of 2009. He said at the time that an API could be coming soon. It’s still not here and today he said that was because of the overwhelming commercial interest in the company’s existing products. Will the company now start to focus on an API? ” In future releases, we will not only show more granular interests, but also make the information available in different ways like APIs, widgets, etc.,” Radfar told us today.Marketers Will Eat EverythingWe wrote about AddThis competitor ShareThis in February, 2009 and asked that company how it planned to relate to its data.I asked [CEO Tim] Schigel whether ShareThis would be sharing this kind of data it collects, in aggregate, with marketers. “That’s ultimately where we go with the business model,” he said. The company is talking with selected marketers about sharing access to market insights now, but Schigel emphasized that a few conditions needed to be respected. “We need to make sure that publishers can build trust with their readers,” he said, “and we need something unique that marketers can’t get elsewhere.”ShareThis has offered an API for some time, but that API appears to be write-only, allowing outside developers to change the way their websites share information on the platform.Can We Move Beyond Marketing?Sources of Value Beyond MarketingData as PlatformRecommendationVisualizationAnalytics, optimization, monitoring & thresholdsPattern detection for discovery of new marketsSecurityHistorical archiving. Top Reasons to Go With Managed WordPress Hosting A Web Developer’s New Best Friend is the AI Wai… Hopefully, one of these companies will offer a high-quality, read-API soon that will allow all kinds of service providers to build products, services, recommendations, analytics and more based on the expressed interests observed from our navigating all around the web. Hopefully the startup ecosystem will figure out how to monetize on the fascinatingopportunities presented by all this data – in a way that genuinely adds value to the lives of end users too (those of us who produced the data). Some of those uses will no doubt be in marketing, and that’s great, but hopefully many will go beyond that most obvious use-case for the data. That’s not something we can take for granted will occur – even data driven innovation is made of people. For now, the data market is moving forward slowly but surely. Want to see what’s visible via AddThis today? Check out the video below. Why Tech Companies Need Simpler Terms of Servic…last_img read more

Do Solar Panels Need to be Cleaned?

first_img This resource from Folsom Labs, the software company which developed HelioScope, states that soiling effects are a “user-defined input.” Canute Haroldson of Folsom Labs said, “Soiling is a user-defined input because it is not monitored using a universal monitoring system, so it cannot be automatically assigned. In addition, it depends on an extremely high number of variables that represent factors that cannot be monitored. Due to these conditions, soiling remains a user-defined input in HelioScope as that is the most accurate way to model it currently.”ReVision Energy has offered to run their HelioScope model for my brother’s PV array, but they haven’t completed the computer run yet. I will post the HelioScope results to this blog when we get them and particularly what they decided to use for annual soiling losses and why. Final wordI was tempted to give Martin the final rather than the “starting” word on this, but I get the final word this time.If you have a ground-mount or easy-to-access rooftop PV array and long periods without rain, you should think of PV panel cleaning as way more important than washing your car — but maybe less important than watering your garden.If you have a large PV array that sees a significant steady source of soiling (such as bird droppings, nearby dusty roads, etc.), you should look to panel cleaning for increased output.For all other situations, how you prioritize PV panel cleaning is likely to be correlated with how nice your car is, or how fastidious you are in general. I was at my brother’s house in Lee, New Hampshire, recently and looked up to see that his photovoltaic (PV) panels looked a bit dull (see Image #2 below). His PV array is easy to get to — the long north slope of his roof has a walkable 5:12 pitch — so we went up and took a closer look.It turns out that the PV industry calls the accumulation of dirt on a PV panel “soiling” or “fouling.” And maybe I should have stopped researching this issue when our own expert PV practitioner, Martin Holladay, told me: “I’ve read that the value of the increased electricity resulting from washing PV modules is too low to justify the cost of the labor required for the washing, except in desert areas of India, where labor is cheap, winds are dusty, and rain is infrequent. It’s certainly true that in Vermont, rain and snow take care of this issue. In 38 years, I’ve never washed a PV module.”But I just could not resist digging a bit deeper. When might it be worth cleaning?It is no big surprise that the size of the array and its location figure significantly into whether or not cleaning is worth the effort. For a multi-megawatt PV installation, it can be worth cleaning the panels for a 7% increase in output. And ground-mounted arrays (the typical type of array used for most large PV installations) can be much easier to clean than roof-mounted ones.A bar graph and list of bullet points from a DOE Office of Indian Energy report, “The 5-Step Development Process; Step 5: Project Operations and Maintenance” (see Image #5), gives tips on optimizing cleaning schedules for large ground-mount arrays.How do you clean big arrays efficiently? There is no shortage of approaches: tractor-mounted cleaning arms (see Image #6), robot vacuums (see Image #7), track-mounted cleaning racks (see Image #8), and good old elbow grease (see Image #9).Research is being conducted on coatings or electrostatic charges that will keep PV panels clear of most types of dust. (For more information, see a 2017 article, “Reducing dust effects on photovoltaic panels by hydrophobic coating,” published in Clean Tech Environmental Policy, volume 19, pages 577-585). But none of these coatings that I found were ready for prime time. Do PV companies factor in anything for soiling when predicting PV output?“Yes,” says Travis Genatossio, operations manager for ReVision Energy, the PV company that installed my brother’s system. “We use a modeling program called HelioScope that includes both soiling from pollen and dust as well as snow coverage. But we typically only run HelioScope for large commercial PV installations, not small residential systems.” In addition to acting as GBA’s technical director, Peter Yost is the Vice President for Technical Services at BuildingGreen in Brattleboro, Vermont. He has been building, researching, teaching, writing, and consulting on high-performance homes for more than twenty years. An experienced trainer and consultant, he’s been recognized as NAHB Educator of the Year. Do you have a building science puzzle? Contact Pete here. You can also sign up for BuildingGreen’s email newsletter to get a free report on insulation, as well as regular posts from Peter. An Introduction to Photovoltaic SystemsGBA Encyclopedia: Photovoltaic SystemsTesting a Thirty-Year-Old Photovoltaic ModuleMaking Room for a PV Array Has anyone ever collected field data on soiling?This took some real digging, but yes, the Sacramento Municipal Utility District (SMUD) as well as researchers from the University of California-San Diego found representative annual PV output losses of approximately 7% due to soiling. (See the NREL report, “Best Practices in Photovoltaic Systems Operation and Maintenance.”) Since the studied sites were all in the West, ranging from San Francisco Bay to the U.S.-Mexican border, areas with more precipitation would most certainly have even lower typical annual losses.One international study — “Effect of Dust Pollutant Type on Photovoltaic Performance” (published in Renewable and Sustainable Energy Reviews, volume 41, 2015) — showed that the type of dust can make a big difference in soiling impacts (see Image #3 below). And the NREL report cited above identified bird droppings as particularly problematic because rain does not clean this material from panels (see Image #4). RELATED ARTICLES last_img read more