Wednesday 12 February 2020 3:14 pm “We all look forward to racing in China as soon as possible and wish everyone in the country the best during this difficult time.”They went on to say all parties are monitoring the situation and are taking steps to determine a possible alternative date later in the year. Markets reacted well today to the lowest rise in reported cases of the virus. But medical experts have warned this does not mean China’s prediction of the epidemic ending in April is accurate. “I know that people are working very hard getting a vaccine together. People are saying that maybe there will be one available by the summer.” (AFP via Getty Images) Around 300 members of staff of Singapore’s largest bank, DBS, have been evacuated after one employee contracted coronavirus, according to the BBC. Brighton GP Catriona Greenwood contracted coronavirus at a chalet in the French Alps last week, believed to have caught it from a so-called super spreader, Steve Walsh. He passed the virus onto 11 people after catching it in Singapore at a conference. Business Steve Walsh, who contracted the illness on a work visit to Singapore before passing it to others on a skiing trip in France, left Guys and St Thomas’ hospital today. He is no longer contagious, according to the NHS. Tags: Coronavirus “It’s good to be back with my family and I would ask you please to respect our privacy from this point on”. “The Chinese Grand Prix has always been a very important part of the F1 calendar and the fans are always incredible,” the FIA added. Read more: What is the coronavirus and how dangerous is it? China’s state news agency, Xinhua, said the country’s fight against coronavirus was a “battle that has no gunpowder smoke but must be won”. PHE is now contacting a small number of patients who were in contact with the doctor, it said, adding that the hospital is open as normal, the BBC reported. It follows the closure of three medical centres in Brighton in connection with coronavirus. The world must “wake up and consider this enemy virus as public enemy number one”, WHO chief Tedros Adhanom Ghebreyesus said last night. He added that the first vaccine was 18 months away. Professor Martin Marshall, chair of the Royal College of GPs, told Sky News: “We can’t treat it at the moment. Public Health England (PHE) is on site to help manage the situation, and the prison remains operational. F1’s Chinese Grand Prix postponed Thai authorities confirmed the identity of the 31-year-old, who was brought back to the UK from the country on a flight two weeks ago, Sky News reported. UK prisoner being tested for Covid-19 Read more: Coronavirus has exposed the flaws of our globalised system Formula E has cancelled its meeting set to be held in Sanya in March and the World Athletics Championships in Nanjing, also set for March, have also been cancelled. The staff had all been working together on the 43rd floor of the office today when the employee’s coronavirus test came back positive. The World Health Organization (WHO) named the new strain of coronavirus Covid-19 yesterday. “If someone becomes very ill with it then they will be admitted to an isolation unit in a hospital and given the necessary support but we have no specific treatment for the virus at the moment. This page collects all the latest news about the coronavirus outbreak, now called Covid-19 Earlier today, it emerged that an A&E doctor from Worthing Hospital in West Sussex is among the UK’s eight coronavirus cases. The FIA, together with Formula One, has have jointly decided to accept this official request from the promoter and postpone the 2020 FIA Formula 1 Chinese Grand Prix, originally scheduled for 19 April. As a result of continued health concerns and with the World Health Organization declaring the coronavirus as a global health emergency, the FIA and Formula One have taken these measures in order to ensure the health and safety of the travelling staff, championship participants and fans, which remains of primary concern Formula One Two families with children at Carden Primary School, which is opposite the County Oak Medical Centre, have been told to self-isolate. whatsapp “As a precautionary measure, all employees on the affected floor vacated the premises to work from home,” DBS said in a statement. The man connected to 11 cases of the coronavirus has been discharged from hospital having made a full recovery from the illness. Get the news as it happens by following City A.M. on Twitter. “If people have been in contact with anybody who might have the virus, them self isolating for 14 days is an effective procedure that will stop it spreading and that’s the most important thing, in the NHS at the moment it doesn’t look like it’s spreading rapidly.” Another branch of the County Oak medical centre also closed yesterday, as well as the Haven Practice in Brighton. Seven schools in Brighton and Hove have now issued warnings to parents about the spread of the coronavirus on the south coast. Sign up to City A.M.’s Midday Update newsletter, delivered to your inbox every lunchtime ‘Coronavirus could be worse than terrorism’ whatsapp Walsh was discharged after posting two negative tests for the virus, 24 hours apart. Thus far eight people have been diagnosed with the disease in the UK, including two GPs. When will coronavirus epidemic end? (AFP via Getty Images) Also Read: Coronavirus latest: UK ‘superspreader’ discharged from hospital Coronavirus latest: UK ‘superspreader’ discharged from hospital The Chinese Grand Prix will be postponed in light of the coronavirus outbreak, organisers have announced. Read more: Coronavirus: China sacks local officials as death toll passes 1,000 A&E hospital doctor infection He urged people who believe they have coronavirus to self-isolate. Singapore bank staff evacuated Share Speaking yesterday, Walsh said he had “fully recovered” from the coronavirus. Greenwood’s practice, County Oak medical centre in Brighton, was closed for deep cleaning. One of the two prisoners at HMP Bullingdon who is being tested for coronavirus has been named as Mark John Rumble. The annual event had originally been scheduled for 17-19 April but Formula 1 and the sport’s governing body accepted the organisers’ request for a delay earlier today. Singapore has counted 47 cases of the coronavirus, with the latest case bringing that total to 48. In a statement, Walsh said: “I’m happy to be home and feeling well. I want to give a big thank you to the NHS who have been great throughout and my thoughts are with everyone around the world who continues to be affected by the virus. Total cases of coronavirus in China have risen to 44,653, health officials said, including 2,015 new confirmed cases. Markets took heart from the number, with it being the lowest daily rise since 30 January. Patcham Nursing Home in Brighton said it was “closed to all visitors” yesterday as a precaution after an infected doctor visited a patient at the home. (AFP via Getty Images) Also Read: Coronavirus latest: UK ‘superspreader’ discharged from hospital In a statement, the FIA said the decision had been taken in light of the WHO declaring the coronavirus a global health emergency. “We expect there to be more cases but as long as people do self isolate it is much less to spread badly,” he added. But WHO said the threat of coronavirus could be worse than terrorism. The Chinese Grand Prix is the latest of several sporting events to be postponed or cancelled in light of the new strain of coronavirus. Joe Curtis Show Comments ▼ The identity of the second prisoner being tested for the virus is unknown. Prisoners at the Oxfordshire jail are now being held in isolation in their cells, with their access restricted to the wing of the prison where they are being held.
Audio Playerhttps://media.ktoo.org/2016/05/garden050516.mp300:0000:0000:00Use Up/Down Arrow keys to increase or decrease volume.Share this story: Gardentalk | OutdoorsGardentalk – Spring tree plantingMay 5, 2016 by Matt Miller, KTOO Share:Doing it right: Landscapers for the new State Libraries Archives and Museum building have staked recently planted trees and spread mulch around the planting area. (Photo by Matt Miller/KTOO)For any Juneau gardeners buying and taking home trees this spring, master gardener Ed Buyarski suggests keeping the bare roots moist until the actual planting.Buyarski had a variety of tips for tree planting during Gardentalk on KTOO’s “Morning Edition” program.“Trees don’t grow deep. Nothing grows deep roots here. Even the huge spruce and hemlock trees don’t grow more than 3 feet deep,” Buyarski said. “Really, we’re better off making a wide area. Dig your hole perhaps a foot to foot and a half deep at most, but wider (by) loosening up the existing soil.”Loosened soil will allow the tree’s roots to spread out.For grafted trees, keep the grafted portion above the soil when you plant it.Mix in soil amendment or compost into the hole and don’t forget to water your newly planted tree. Stake up the tree so that it can establish its roots, and keep the weed wacker away. Spread mulch around the tree to keep the weeds down, but not right up to the trunk.It’s a madhouse!Juneau’s annual plant and garden sale runs 9 a.m. to noon Saturday at the Safeway parking lot. Various retailers and other organizations plan to sell vegetable and flower starts, seed potatoes, shrubs, berry plants, perennials and fruit trees that have been selected for growing in Southeast Alaska. Listen to the May 5 edition of Gardentalk on the annual garden sale and tree planting:
2020 U-15 ‘B’ glory for Ballyroan-Abbey following six point win over Killeshin Facebook WhatsApp Facebook Pinterest Previous articleBREAKING: Portlaoise boxer Doheny retains World Title in New YorkNext articleSeven Laois organisations benefit by almost €140,000 from two Government schemes Alan HartnettStradbally native Alan Hartnett is a graduate of Knockbeg College who has worked in the local and national media since 2008. Alan has a BA in Economics, Politics and Law and an MA in Journalism from DCU. His happiest moment was when Jody Dillon scored THAT goal in the Laois senior football final in 2016. Kelly and Farrell lead the way as St Joseph’s claim 2020 U-15 glory Portlaoise boxer TJ Doheny successfully defended his IBF World Super-Bantamweight Title overnight and immediately set his sights on a unification bout with Daniel Roman.The Knockmay man defeated Ryohei Takahashi in the Madison Square Garden in the first defence of the belt he won back in August last year.Doheny won in the 11th round after the referee stopped the contest as the Portlaoise man connected with numerous consecutive shots.Elavated to another level after earning the world title, the Portlaoise Southpaw was accurate from the start and took the centre of the ring early in the first round.‘The Power’ clocked clever body shots throughout. While a head clash left both Doheny and Takahashi with cuts on the nose bleeding considerably in the second round, Doheny spurred on with a first class performance.Speaking afterwards, Doheny reflected on a difficult fight which left him with a cut above his eye and plotted his next move.He said: “Every time I hit him, I felt I was hurting him. He was getting himself into some really safe spots and I was finding it difficult to catch him.“The main thing is, we got the stoppage in the end and we move on now.“It is not a TJ Doheny fight without a cut. Every time I always come out with scratches and bruises because I give it my all and put on a show for the fans.”American boxer Daniel Roman is currently the WBA super bantamweight champion and Doheny wants the opportunity to unify the belts.He said: “Daniel Roman is a great fighter. He has the WBA belt and I have the IBF so let’s make it happen.”Roman then appeared on stage and called for the same.Doheny then said to his promoter Eddie Hearn – “Eddie you heard it, you got the order from the fighters, let’s go.”SEE ALSO – Portlaoise boxer Doheny retains World Title in New York GAA GAA WhatsApp Here are all of Wednesday’s Laois GAA results Twitter TAGSTJ Doheny Pinterest GAA Home Sport Boxing Doheny sets sights on unification bout after successful title defence SportBoxing Doheny sets sights on unification bout after successful title defence RELATED ARTICLESMORE FROM AUTHOR By Alan Hartnett – 19th January 2019 Twitter
Stocks are falling sharply after the bond market threw up another warning flag on the economy.The yield on the 10-year Treasury briefly dropped below the two-year Treasury’s yield Wednesday morning for the first time since 2007. That’s an ominous signal that has correctly predicted many past recessions. Related news Toronto stock market dips on weakness in the energy and financials sectors Associated Press TSX gets lift from financials, U.S. markets rise to highest since March S&P/TSX composite hits highest close since March on strength of financials sector peshkov/123RF Keywords Marketwatch Facebook LinkedIn Twitter Share this article and your comments with peers on social media Investors dumped stocks, more than erasing gains from a rally the day before.Retailers came under especially heavy selling pressure after Macy’s issued a dismal earnings report.The Dow Jones Industrial Average fell 616 points, or 2.3%, to 25,659.The S&P 500 lost 68 points, or 2.3%, to 2,857. The Nasdaq lost 218 points, or 2.7%, 7,800.U.S. government bond prices continued to soar as investors sought safety. The yield on the 10-year Treasury note sank to 1.59% from 1.68% Tuesday.
Proclamation on Honoring United States Capitol Police Officers The White HouseAs a sign of respect for the service and sacrifice of United States Capitol Police Officers Brian D. Sicknick and Howard Liebengood, and all Capitol Police Officers and law enforcement across this great Nation, by the authority vested in me as President of the United States by the Constitution and the laws of the United States of America, I hereby order that the flag of the United States shall be flown at half-staff at the White House and upon all public buildings and grounds, at all military posts and naval stations, and on all naval vessels of the Federal Government in the District of Columbia and throughout the United States and its Territories and possessions until sunset, January 13, 2021. I also direct that the flag shall be flown at half-staff for the same length of time at all United States embassies, legations, consular offices, and other facilities abroad, including all military facilities and naval vessels and stations.IN WITNESS WHEREOF, I have hereunto set my hand this tenth day of January, in the year of our Lord two thousand twenty-one, and of the Independence of the United States of America the two hundred and forty-fifth.DONALD J. TRUMP /Public Release. This material comes from the originating organization and may be of a point-in-time nature, edited for clarity, style and length. View in full here. Why?Well, unlike many news organisations, we have no sponsors, no corporate or ideological interests. We don’t put up a paywall – we believe in free access to information of public interest. Media ownership in Australia is one of the most concentrated in the world (Learn more). Since the trend of consolidation is and has historically been upward, fewer and fewer individuals or organizations control increasing shares of the mass media in our country. According to independent assessment, about 98% of the media sector is held by three conglomerates. This tendency is not only totally unacceptable, but also to a degree frightening). Learn more hereWe endeavour to provide the community with real-time access to true unfiltered news firsthand from primary sources. It is a bumpy road with all sorties of difficulties. We can only achieve this goal together. Our website is open to any citizen journalists and organizations who want to contribute, publish high-quality insights or send media releases to improve public access to impartial information. You and we have the right to know, learn, read, hear what and how we deem appropriate.Your support is greatly appreciated. All donations are kept completely private and confidential.Thank you in advance!Tags:america, Constitution, District of Columbia, Federal, federal government, Government, house, Howard, law, military, police, President, United States, White House
ACTCOSS welcomes steps to help Canberrans find lower retail electricity prices The ACT Council of Social Service (ACTCOSS) has today welcomed the announcement by ACT Chief Minister, Andrew Barr MLA, and Minister for Water, Energy and Emissions, Shane Rattenbury MLA, of legislation requiring ACT electricity retailers to use a common reference price and to inform their customers if a better deal is available.Dr Emma Campbell, ACTCOSS CEO, said: “For most people, comparing electricity offers is a difficult, confusing, and time-consuming process. ACTCOSS welcomes the announcement of legislation that will increase transparency on the part of electricity retailers and make it easier for consumers to compare electricity offers and determine if they are getting the best deal.“These new rules will benefit all Canberrans, but particularly those facing income stress or other engagement barriers, such as time restrictions due to caring, digital exclusion, limited English language proficiency and other complex life circumstances. Energy justice requires that low-income and vulnerable consumers have ready access to electricity at a manageable cost. People should not be forced to spend many hours navigating opaque information to access an essential service at a fair price.“ACTCOSS is pleased to see our advocacy reflected in today’s announcement. ACTCOSS has made submissions to the Independent Competition and Regulatory Commission (ICRC) and directly to the ACT Government advocating for measures to improve the transparency and comparability of electricity prices in the ACT.“While we welcome the steps currently being taken, ACTCOSS is keen to ensure that they do not result in a perverse outcome for consumers. We want to ensure that costs of compliance with these measures are not passed from electricity retailers to customers in a way that negates any customer benefit derived.“It is important to note that these rules alone are not enough to ensure energy justice in the ACT.“ACTCOSS calls on the ACT Government to ensure the Utilities Concession is adequate; to provide continued funding of the Utilities Hardship Fund; to permanently extend eligibility for Utilities Concession to asylum seekers who are ACT Services Access Card holders; and to explore options to support the broader cohort of vulnerable energy consumers in the ACT who are not currently eligible for the Utilities Concession and/or the Utilities Hardship Fund.“ACTCOSS welcomes changes that will increase the accountability and responsibility of electricity retailers, and provide consumers with straightforward, easy-to-action information,” Dr Campbell concluded.ACTCOSS advocates for social justice in the ACT and represents not-for-profit community organisations. /Public Release. This material comes from the originating organization and may be of a point-in-time nature, edited for clarity, style and length. View in full here. Why?Well, unlike many news organisations, we have no sponsors, no corporate or ideological interests. We don’t put up a paywall – we believe in free access to information of public interest. Media ownership in Australia is one of the most concentrated in the world (Learn more). Since the trend of consolidation is and has historically been upward, fewer and fewer individuals or organizations control increasing shares of the mass media in our country. According to independent assessment, about 98% of the media sector is held by three conglomerates. This tendency is not only totally unacceptable, but also to a degree frightening). Learn more hereWe endeavour to provide the community with real-time access to true unfiltered news firsthand from primary sources. It is a bumpy road with all sorties of difficulties. We can only achieve this goal together. Our website is open to any citizen journalists and organizations who want to contribute, publish high-quality insights or send media releases to improve public access to impartial information. You and we have the right to know, learn, read, hear what and how we deem appropriate.Your support is greatly appreciated. All donations are kept completely private and confidential.Thank you in advance!Tags:Act, ACT Council of Social Service, ACT Government, Canberra, Commission, community, council, digital, electricity, English, Government, justice, language, legislation, Minister, social justice, social services
PlayThe Rolls-Royce Boat Tail may be the most expensive new car everPlay3 common new car problems (and how to prevent them) | Maintenance Advice | Driving.caPlayFinal 5 Minivan Contenders | Driving.caPlay2021 Volvo XC90 Recharge | Ministry of Interior Affairs | Driving.caPlayThe 2022 Ford F-150 Lightning is a new take on Canada’s fave truck | Driving.caPlayBuying a used Toyota Tundra? Check these 5 things first | Used Truck Advice | Driving.caPlayCanada’s most efficient trucks in 2021 | Driving.caPlay3 ways to make night driving safer and more comfortable | Advice | Driving.caPlayDriving into the Future: Sustainability and Innovation in tomorrow’s cars | Driving.ca virtual panelPlayThese spy shots get us an early glimpse of some future models | Driving.ca See More Videos advertisement Buy It! Princess Diana’s humble little 1981 Ford Escort is up for auction An engagement gift from Prince Charles, the car is being sold by a Princess Di “superfan” If this is the real deal, it’s the clearest shot yet of any Bronco part that seems even close to being production-ready. The too-cool Bronco R which raced in Baja earlier this year provided clues to the truck’s overall shape but wore bespoke racing panels and a phalanx of aftermarket lights. This assembly is appears as if it were plucked straight from the assembly line.RELATED The Rolls-Royce Boat Tail may be the most expensive new car ever This is what the new Ford ‘Baby Bronco’ will look likeBearing a good resemblance to the light-and-signal setup found on the original Ford Bronco, this unit appears to incorporate a DRL halo circling the main lamp, flanked by an inboard turn signal and edge-of-corner reflector. It would make for a dandy visual callback to the rough-‘n’-ready OG Bronco.The forum user specifically mentions the U725 Bronco but it is worth noting the assembly’s marked similarity to the headlamps we saw in the images your author found last year of what is almost certainly the so-called Baby Bronco.The mounting tab on the bottom of today’s leaked headlight seems to be at an angle allowing for the assembly to taper towards the vehicle edge, suggesting this unit is not as flat as it may first seem.Given the current styling trend, don’t be surprised if the Bronco is available with a full-width grille that doubles as a billboard for either the make or model. The race-ready Bronco R strongly suggested this as well with a bright red ‘R’ appended asymmetrically to its snout like the nose ring on a sullen goth kid. The Bronco is expected to enter production in December 2020. ‹ Previous Next › Leaky headlamps are a pain in the neck but leaked headlamps are a whole ‘nuther ball game — especially when they’re allegedly bound for the hotly anticipated 2021 Ford Bronco.The gearheads at the enthusiast forum Bronco6G published this photo earlier today, with a description claiming it was supplied by someone working on the U725 Bronco.If you’re wondering, “U725” is Ford’s internal code for the upcoming Wrangler-fighter. RELATED TAGSBroncoFordSUVNon-LuxuryNew VehiclesbroncoFordheadlightNon-Luxury We encourage all readers to share their views on our articles using Facebook commenting Visit our FAQ page for more information. Trending in Canada Ford’s Bronco R prototype is our best look yet at the upcoming SUV Trending Videos COMMENTSSHARE YOUR THOUGHTS
Share Share via TwitterShare via FacebookShare via LinkedInShare via E-mail Published: Nov. 6, 2018 • By Daniel Strain Students attend a computer science class at CU Boulder. (Credit: Glenn Asakawa/CU Boulder) Categories:Health & SocietyNews Headlines How ideas move through academia may depend on where those ideas come from—whether from big-name universities or less prestigious institutions—as much as their quality, a recent study from CU Boulder suggests. The new research borrows a page from epidemiology, exploring how ideas might flow from university to university, almost like a disease. The findings from CU Boulder’s Allison Morgan and her colleagues suggest that the way that universities hire new faculty members may give elite schools an edge in spreading their research to others.Key takeawaysA small number of universities have trained the majority of tenure track faculty in computer science in the U.S. and Canada.That bias may give elite universities an edge in spreading their ideas from university to university—even when those ideas aren’t that good.The good news: great ideas can still catch fire in academia, no matter where they come from.In particular, the team simulated how ideas might spread out faster from highly-ranked schools than from those at the bottom of the pile—even when the ideas weren’t that good. The results suggest that academia may not function like the meritocracy that some claim, said Morgan, a graduate student in the Department of Computer Science. She and her colleagues began by drawing on a dataset, originally published in 2015, that described the hiring histories of more than 5,000 faculty members in 205 computer science programs in the U.S. and Canada. That dataset revealed what might be a major power imbalance in the field—with a small number of universities training the majority of tenure track faculty across both countries. “This paper was really about investigating the implications of the imbalance,” Morgan said. “What does it mean if the elite institutions are producing the majority of the faculty who are, in turn, training the future teachers in the field?”Academic roadmapTo answer that question, the researchers turned the 2015 dataset into a network of connected universities. If a university placed one of its PhD students in a job at another school, then those two schools were linked. The resulting “roadmap” showed how faculty might carry ideas from their graduate schools to the universities that hired them.The researchers then ran thousands of simulations on that network, allowing ideas that began at one school to percolate down to others. The team adjusted for the quality of ideas by making some more likely to shift between nodes than others.The findings, published in October in the journal EPJ Data Science, show that it matters where an idea gets started. When mid-level ideas began at less prestigious schools, they tended to stall, not reaching the full network. The same wasn’t true for so-so thinking from major universities. “If you start a medium- or low-quality idea at a prestigious university, it goes much farther in the network and can infect more nodes than an idea starting at a less prestigious university,” Morgan said. That pattern held up even when the researchers introduced a bit of randomness to the mix—allowing ideas to pop from one end of the network to another by chance. That simulated how university departments might learn about an idea through factors other than hiring, such as journals, conferences or word of mouth. Diverse departmentsThe results seem to paint a dim picture of academia, said study coauthor Samuel Way, a postdoctoral research associate in computer science. He explained that recent sociological research demonstrates that workplaces benefit by having a lot of diversity—whether in gender, race or in how employees are trained. “If you have five people who all have the exact same training and look at the world through the same lens, and you give them a problem that stumps one of them, it might stump all of them,” Way said.He added that it may be possible for the academic world to blunt the impact of the sorts of biases the team revealed, including by adopting practices like double-blind peer review—in which the reviewers of a study can’t see the names or affiliations of the authors. “In a setting like science where it’s incredibly difficult to come up with an objective measure of the quality of an idea, double-blind peer review may be the best you can do,” Way said.The study did, however, contain a bit of good news: The bias toward big-name universities mattered a lot less for high-quality ideas. In other words, great thinking can still catch fire in academia, no matter where it comes from.“I think it’s heartwarming in a way,” Morgan said. “We see that if you have a high-quality idea, and you’re from the bottom of the hierarchy, you have as good a chance of sending that idea across the network, as if it came from the top.”Other coauthors on the study included graduate student Dimitrios Economou and Associate Professor Aaron Clauset, both in computer science.
“It’s really annoying,” said Xu Wang, a research associate in the Laboratory for Atmospheric and Space Physics (LASP) at CU Boulder. “Lunar dust sticks to all kinds of surfaces—spacesuits, solar panels, helmets—and it can damage equipment.”So he and his colleagues developed a possible fix—one that makes use of an electron beam, a device that shoots out a concentrated (and safe) stream of negatively-charged, low-energy particles. In the new study, the team aimed such a tool at a range of dirty surfaces inside of a vacuum chamber. And, they discovered, the dust just flew away.“It literally jumps off,” said lead author Benjamin Farr, who completed the work as an undergraduate student in physics at CU Boulder. The researchers still have a long way to go before real-life astronauts will be able to use the technology to do their daily tidying up. But, Farr said, the team’s early findings suggest that electron-beam dustbusters could be a fixture of moon bases in the not-too-distant future. Spent gunpowderThe news may be music to the ears of many Apollo-era astronauts. Several of these space pioneers complained about moon dust, which often resists attempts at cleaning even after vigorous brushing. Harrison “Jack” Schmitt, who visited the moon as a member of Apollo 17 in 1972, developed an allergic reaction to the material and has said that it smelled like “spent gunpowder.”The problem with lunar dust, Wang explained, is that it isn’t anything like the stuff that builds up on bookshelves on Earth. Moon dust is constantly bathed in radiation from the sun, a bombardment that gives the material an electric charge. That charge, in turn, makes the dust extra sticky, almost like a sock that’s just come out of the drier. It also has a distinct structure. Dust sticks to the boots of Apollo 17 astronaut and geologist Harrison “Jack” Schmitt in 1972. (Credit: NASA)A team led by the University of Colorado Boulder is pioneering a new solution to the problem of spring cleaning on the moon: Why not zap away the grime using a beam of electrons?The research, published recently in the journal Acta Astronautica, marks the latest to explore a persistent, and perhaps surprising, hiccup in humanity’s dreams of colonizing the moon: dust. Astronauts walking or driving over the lunar surface kick up huge quantities of this fine material, also called regolith. “Lunar dust is very jagged and abrasive, like broken shards of glass,” Wang said. The question facing his group was then: How do you unstick this naturally clingy substance?Electron beams offered a promising solution. According to a theory developed from recent scientific studies of how dust naturally lofts on the lunar surface, such a device could turn the electric charges on particles of dust into a weapon against them. If you hit a layer dust with a stream of electrons, Wang said, that dusty surface will collect additional negative charges. Pack enough charges into the spaces in between the particles, and they may begin to push each other away—much like magnets do when the wrong ends are forced together. “The charges become so large that they repel each other, and then dust ejects off of the surface,” Wang said.Electron showersTo test the idea, he and his colleagues loaded a vacuum chamber with various materials coated in a NASA-manufactured “lunar simulant” designed to resemble moon dust.And sure enough, after aiming an electron beam at those particles, the dust poured off, usually in just a few minutes. The trick worked on a wide range of surfaces, too, including spacesuit fabric and glass. This new technology aims at cleaning the finest dust particles, which are difficult to remove using brushes, Wang said. The method was able to clean dusty surfaces by an average of about 75-85%. “It worked pretty well, but not well enough that we’re done,” Farr said.The researchers are currently experimenting with new ways to increase the cleaning power of their electron beam.But study coauthor Mihály Horányi, a professor in LASP and the Department of Physics at CU Boulder, said that the technology has real potential. NASA has experimented with other strategies for shedding lunar dust, such as by embedding networks of electrodes into spacesuits. An electron beam, however, might be a lot cheaper and easier to roll out. Horányi imagines that one day, lunar astronauts could simply leave their spacesuits hanging up in a special room, or even outside their habitats, and clean them after spending a long day kicking up dust outside. The electrons would do the rest.“You could just walk into an electron beam shower to remove fine dust,” he said.Other coauthors on the new research include John Goree of the University of Iowa and Inseob Hahn and Ulf Israelsson of the Jet Propulsion Laboratory. Top: A microscope view of NASA-manufactured lunar “simulant” designed to resemble moon dust; bottom: A vacuum chamber on the CU Boulder campus. (Credits: IMPACT lab) Categories:SpaceNews Headlines Share Share via TwitterShare via FacebookShare via LinkedInShare via E-mail Published: Aug. 31, 2020 • By Daniel Strain