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12 articles from Guardian Unlimited Science

Scientists develop 'tiny wind turbine' to scavenge energy from gentle breeze – video report

Scientists have developed a 'tiny wind turbine' that can take energy from a gentle breeze, such as that made as you walk.The device comprises two plastic strips in a tube that flutter or clap together in the presence of airflow. That energy, powered by the contact and separation of two materials, can be bottled up and stored for use, according to researchers.Scientists in China hope the...

6,178 new Covid cases recorded - close to record from early May – as it happened

Scotland records highest daily cases total; Keir Starmer presses Boris Johnson on Covid testing at PMQs; ‘clear upward curve’ in cases in WalesShortages threaten Johnson’s pledge of 500,000 UK Covid tests a day10pm nightlife ban ‘not a silver bullet’, Raab admitsSix ways to get through the next six monthsGlobal coronavirus updates – live 5.57pm BST Just interviewed the Labour leader...

England's new Covid rules 'too little, too late' for the second time

Scientists say measures won’t stop spread and increase chance of crackdown laterCoronavirus – latest updatesSee all our coronavirus coverageScientific advisers to the government have warned that pub curfews and other new measures in England will fail to stop the exponential spread of Covid-19, as sources confirmed that ministers have departed from their “follow the science” mantra.A member...

'Tiny wind turbine' can collect energy from a walker's swinging arm

Researchers say device can generate sustainable power from gentle breeze Scientists have developed a “tiny wind turbine” that can scavenge energy from the breeze made while walking.Imagine rubbing a balloon on your hair for a few seconds – can you hear the crackle of static electricity, see your hair stand on end? That energy, powered by the contact and separation of two materials, can be...

Scientists develop 'tiny wind turbine' to scavenge energy from gentle breeze – video report

Scientists have developed a 'tiny wind turbine' that can take energy from a gentle breeze, such as that made as you walk.The device comprises two plastic strips in a tube that flutter or clap together in the presence of airflow. That energy, powered by the contact and separation of two materials, can be bottled up and stored for use, according to researchers.Scientists in China hope the...

Battle rages inside US hospitals over how Covid-19 strikes and kills

The CDC’s confusing backpedalling on whether the coronavirus is airborne is roiling health workers and hospitals because an airborne virus requires completely new safety protocolsLost on the frontlineFrontline healthcare workers are locked in a heated dispute with many infection control specialists and hospital administrators over how the novel coronavirus is spread – and therefore, what level...

England's new measures aren't enough to prevent soaring Covid-19 infections | Jennifer Dowd

The path out of the pandemic relies on a full toolkit of strategies to buy time – including restricting home visits The new restrictions announced by Boris Johnson yesterday, including the closing of restaurants and pubs at 10pm and increased use of face coverings, fall short of a “second lockdown” but signal that life is still far from returning to normal.While England’s true number of...

Glitches dent German enthusiasm for Covid contact-tracing app

Despite being downloaded more than 18m times, the app’s effectiveness is being questionedCoronavirus – latest updatesSee all our coronavirus coverageAs Britain prepares to unveil its own coronavirus contact-tracing app, Germany is drawing less than enthusiastic first conclusions about the effectiveness of battling the pandemic with smartphones.A hundred days after its launch, German...

Coronavirus live news: Paris due to unveil tighter restrictions; record weekly rise in global cases

Paris move would follow curbs in other French cities; world reports just under two million Covid-19 cases in one weekGlobal report: Trump calls 200,000 US coronavirus deaths ‘a shame’US reaches 200,000 coronavirus deaths, highest in worldFollow new restrictions or risk a second lockdown, Johnson warns UKWeekly number of new cases at highest level, says WHOUK coronavirus updates – live...

ISS forced to move to avoid space debris

Nasa says astronauts sheltered in the Soyuz spacecraft so they could evacuate if necessary during the ‘avoidance manoeuvre’Astronauts aboard the International Space Station were carrying out an “avoidance manoeuvre” on Tuesday to ensure the station would not be hit by a piece of debris, the US space agency Nasa announced.The debris should pass within “several kilometres” of the...

Flu vaccine critical to avoid stretching US healthcare amid Covid, scientists warn

Flu season could be like no other this year and a national campaign to promote the flu vaccine is urgent, say scientistsA national public health campaign promoting the flu vaccine is urgently needed to avoid stretched healthcare services being overwhelmed this winter as the US faces cold season while still struggling to gain control of the coronavirus pandemic, scientists have warned.Influenza or...