麻豆影视

Sci-Tech

    • Synthetic fabric inspired by polar bear fur lighter, warmer than cotton: scientists

    Share

    Researchers say they have successfully made a synthetic version of polar bear fur that is not only lighter than cotton but also warmer.

    Three engineers at the University of Massachusetts Amherst have developed a two-layered fabric that models not just the bear's fur but also its black skin that helps it stay warm.

    The researchers say their work, published on April 5 in the journal , caps an 80-year quest to create a textile that mimics polar bear fur.

    They say the fabric is already in development for commercial use.

    "While our textile really shines as outerwear on sunny days, the light-heat trapping structure works efficiently enough to imagine using existing indoor lighting to directly heat the body," Wesley Viola, the paper's lead author, said in a published on Monday.

    "By focusing energy resources on the 'personal climate' around the body, this approach could be far more sustainable than the status quo."

    The researchers say polar bears' white fur is effective at transmitting solar radiation toward their skin.

    "But the fur is only half the equation," Trisha L. Andrew, the paper's senior author, said. "The other half is the polar bears' black skin."

    Andrew says polar bear fur acts as a "natural fibre optic," conducting sunlight to the skin, which absorbs the light and heats the bear.

    At the same time, the fur also helps prevent the skin from radiating too much warmth, akin to a thick blanket that warms itself up and then traps the heat, the researchers say.

    The synthetic fabric works in a similar way with a top layer of threads that conducts light to a lower layer made of nylon and coated with a dark material called PEDOT, which warms up.

    The researchers say a jacket using this material would be 30 per cent lighter than another made of cotton but would leave the wearer more comfortable at temperatures 10 C colder, as long as the sun is out.

    The scientists say a Boston-based company called has already started producing cloth coated in this PEDOT material.

    CTVNews.ca Top Stories

    Why brain aging can vary dramatically between people

    Researchers are uncovering deeper insights into how the human brain ages and what factors may be tied to healthier cognitive aging, including exercising, avoiding tobacco, speaking a second language or even playing a musical instrument.

    The union representing some 1,200 dockworkers at the Port of Montreal has overwhelmingly rejected a deal with their employers association.

    A man who was critically injured in a police-involved shooting in Hamilton late Sunday afternoon has died in hospital, says the province鈥檚 police watchdog.

    opinion

    opinion How to transition from renting to owning a home in Canada

    In his column for CTVNews.ca, personal finance contributor Christopher Liew offers a step-by-step guide on how to make the shift from renting to becoming a homeowner, and what you can start doing today to help the process go smoother.

    Canada

    World

    Politics

    • Murray Sinclair鈥檚 family members say the late justice and senator has been laid to rest according to his wishes.

    • Prime Minister Justin Trudeau announced voters in Cloverdale鈥擫angley City will pick their next member of Parliament on Dec. 16.

    Health

    Sci-Tech

    Entertainment

    Business

    Lifestyle

    Sports

    Autos

    Local Spotlight

    For the second year in a row, the 鈥楪ift-a-Family鈥 campaign is hoping to make the holidays happier for children and families in need throughout Barrie.

    Some of the most prolific photographers behind CTV Skywatch Pics of the Day use the medium for fun, therapy, and connection.

    A young family from Codroy Valley, N.L., is happy to be on land and resting with their newborn daughter, Miley, after an overwhelming, yet exciting experience at sea.

    As Connor Nijsse prepared to remove some old drywall during his garage renovation, he feared the worst.

    A group of women in Chester, N.S., has been busy on the weekends making quilts 鈥 not for themselves, but for those in need.

    A Vancouver artist whose streetside singing led to a chance encounter with one of the world's biggest musicians is encouraging aspiring performers to try their hand at busking.

    Ten-thousand hand-knit poppies were taken from the Sanctuary Arts Centre and displayed on the fence surrounding the Dartmouth Cenotaph on Monday.

    A Vancouver man is saying goodbye to his nine-to-five and embarking on a road trip from the Canadian Arctic to Antarctica.

    • Weather watchers were treated to an exceptionally rare display on Friday evening as rare cloud formations filled Vancouver skies.

    • For some shoppers it was Nov. 1, but for others the first hints of Christmas - saccharine treats, festive-fragranced candles and gaudily wrapped gift sets - were being noticed in stores long before the final Halloween decor had been cleared.

    • Thousands of people are expected to gather in downtown Vancouver on Monday to observe the city鈥檚 100th Remembrance Day ceremony.

    • Toronto is expected to see an economic boost to the tune of nearly $300 million thanks to Taylor Swift鈥檚 upcoming Eras Tour, which will be making a stop in Canada鈥檚 largest city for a six-show run later this month.

    • One man was transported to hospital early Monday morning after a stabbing in the northwest end of the city, Toronto police say.

    • A man who was critically injured in a police-involved shooting in Hamilton late Sunday afternoon has died in hospital, says the province鈥檚 police watchdog.

    • A pair of 105-mm howitzers bark constantly as they turn plywood tank targets into kindling kilometres away on the windswept landscape of one of Canada's largest military bases.

    • Two semis were among the vehicles involved in a multi-vehicle crash that brought westbound traffic along Stoney Trail Northwest to a standstill on Sunday.

    • More than 700 people danced, ate, and sang to celebrate Diwali Saturday night at the Genesis Centre in northeast Calgary.

    • NEW THIS MORNING

      NEW THIS MORNING

      An Ottawa boy with a rare disease will be getting the chance to see Taylor Swift in concert after the winner and organizers of an auction held on his behalf gifted the tickets to him.

    • CTVNewsOttawa.ca looks at Remembrance Day ceremonies in Ottawa.

    • After months of controversy surrounding a dog park in Ottawa's west end, a solution has been reached to divide the park in half.

    • An elementary school in Greenfield Park on Montreal鈥檚 South Shore is closed after it was the target of an alleged arson attack.

    • Two vehicles were set on fire in Montreal鈥檚 east end Riviere-des-Prairies neighbourhood.

    • A First Nation near Quebec City says the provincial government and Quebec鈥檚 hydro utility have ignored their constitutional duty to consult about four planned wind projects south of the Saint Lawrence River.

    • Monday is Remembrance Day, a time to honour armed forces members who have died in the line of duty.

    • Boasting 2,300 square metres of skating space at its new location, Edmonton's Rollers Roller Rink believes it is the largest in Canada.

    • A woman is dead after a driver crashed a truck through a Boston Pizza in Fort McMurray late Saturday morning.

    • A pillar in Canada鈥檚 history was honoured in Winnipeg Sunday afternoon, with thousands showing up to pay tribute to the life and legacy of the late Murray Sinclair.

    • Winnipeg police have identified two men involved in a stabbing incident earlier this week.

    • The Winnipeg Blue Bombers whipped the Saskatchewan Roughriders 38-22 in Saturday's CFL West Division final to earn their fifth consecutive trip to the Grey Cup.

    • Regina author Valerie Crowther is celebrating the release of her book 鈥榃ar Letters: Linking Lives in the Second World War.鈥

    • It was a somber day at Mosaic Stadium as members of the Saskatchewan Roughriders officially cleaned out their stalls and closed the book on the 2024 season.

    • Twilight Tech Arcade, an entertainment location specializing in retro gaming, is closing its doors for the foreseeable future.

    • A man has been charged after a stabbing at an apartment building in Kitchener.

    • The Guelph Police Service is putting out a warning after two deaths in the downtown area.

    • Two new tributes to Canada鈥檚 veterans have been unveiled at the Elmira Cenotaph.

    • Saskatchewan RCMP are searching for a suspect after a man was seriously injured in a farm-related incident in Montreal Lake.

    • It was a somber day at Mosaic Stadium as members of the Saskatchewan Roughriders officially cleaned out their stalls and closed the book on the 2024 season.

    • The Regina Rams claimed the Hardy Cup after a hard fought battle against the Saskatoon Huskies 19-14 on Saturday in the first all Saskatchewan U-Sports western conference final since 2002.

    • CTVNewsNorthernOntario.ca is livestreaming the annual Remembrance Day ceremony at the Sudbury Community Arena starting Monday at 10:30 a.m.

    • Police have arrested a 15-year-old in connection with a break-in and $50,000 in damage done to the Centennial Arena in Elliot Lake in September.

    • Emergency crews responded to the scene on Road 68/Highway 2 east of Thamesford around 7 p.m.

    • On Friday, the Sarnia Police Service (SPS) received a report of an alleged abduction in the area of Kathleen Avenue and Walnut Avenue.

    • The events will start at 10:15 a.m. with a parade that forms up in front of the Delta London Armories, marches east on Dundas Street and turns north onto Waterloo Street to Dufferin Avenue, the west to the Cenotaph.

    • A group of former NHL players faced off against York Regional Police officers in Newmarket Sunday afternoon to raise funds for Special Olympics programs across the province.

    • A driver is facing multiple charges after a multi-vehicle collision on Highway 400 early Sunday morning.

    • The agreed statement of facts was read to the court on Friday in the case of Alex Williams, the 24-year-old jail guard charged last fall with smuggling cannabis and tobacco into Central North Correctional Centre in Penetanguishene.

    • One person has been arrested after Chatham-Kent Police Service (CKPS) received multiple complaints about an alleged drunk driver.

    • More details have been released about a police investigation at the Ambassador Bridge that connects Windsor, Ont. and Detroit, MI.

    • An individual is dead following a collision involving a motorcycle in Kingsville.

    • Environment Canada says heavy rain and winds could cause power outages on Vancouver Island as an "intense" storm system is set to hit the B.C. coast Sunday.

    • Six deer were struck by vehicles in six different locations in a six-hour period on B.C. highways on Saturday, according to the transportation ministry.

    • The union for locked-out port workers in British Columbia says the BC Maritime Employers Association cut off talks in less than an hour Saturday, refusing to budge on a final offer that the union has so far rejected.

    • The emergency department at South Okanagan General Hospital in Oliver, B.C., will be closed for 31 hours this weekend, the second such closure in a week and the third since the start of November.

    • Police in Kamloops, B.C., are reminding parents and guardians to check their children's Halloween candy after receiving a report of a mother finding a razor blade in one of her daughter's treats.

    • More than two years after Alannah Brown and Douglas Barker were found dead north of Penticton, police are asking for help identifying a vehicle they believe was associated with the crime.

    • The Southern Alberta Recreation Association is officially announcing the Town of Taber as next year鈥檚 host for the Southern Alberta Summer Games.

    • The Lethbridge Hurricanes broke open a close game with three goals in the first two minutes of the third period as they defeated the Warriors 7-3 in a game played Friday night in Moose Jaw.

    • There might not a lot snow just yet, but many southern Albertans are still itching to get outdoors.

    • Police have arrested a 15-year-old in connection with a break-in and $50,000 in damage done to the Centennial Arena in Elliot Lake in September.

    • Mayors of the five largest cities in northern Ontario met in North Bay the last two days to discuss a range of critical issues impacting their cities and the region.

    • Residents in the Sault expressed concerns ranging from vandalism to privacy invasions during recent consultations on the city's plan to install automated speed enforcement cameras.

    N.L.

    Shopping Trends

    The Shopping Trends team is independent of the journalists at 麻豆影视. We may earn a commission when you use our links to shop.聽Read about us.

    Stay Connected
    Follow 麻豆影视