Sneezing speed is shown for four types of nose and mouth. A) there is an open nasal passage with teeth, b) there is an open nasal passage without teeth, c) a nasal obstruction without teeth is blocked, and d) a nasal obstruction with teeth is blocked. Credit: University of Central …
Read More »Most coronavirus cases are transmitted by people without symptoms, the CDC now says
Most coronavirus infections are spread by people who have no symptoms, the US Centers for Disease Control and Prevention said in a new updated guide. Noah Burger / AP On Wednesday, October 21, 2020 in San Francisco, a shopkeeper urges customers to wear masks at the Brandy Melville store. As …
Read More »NASA to launch on Saturday: A satellite that will track Earth’s sea level rise is ready to go
The Sentinel-6 Michael Freelich satellite is set to launch on Saturday, as the next pay-space of the spacecraft monitors our planet’s sea surface. The joint venture between NASA and the European Space Agency will begin on November 21 from Vandenberg Air Force Base in California on November 21 at 12:17 …
Read More »The CDC now says most coronavirus cases are transmitted by people without symptoms
One of the main reasons why the use of masks is so important, the CDC said. “Most SARS-COV-2 infections are transmitted by people without symptoms,” the agency said in a section of its website dedicated to explaining the science of how to use masks to control the spread of the …
Read More »Da Vinci’s drawings contain a surprising combination of bacteria, fungi and human DNA
Leonardo da Vinci is famous for his elaborate, nuanced artwork and advanced technical ideas. But new research has revealed another level of complexity in his drawings: the hidden world of small life-forms on his artwork. These findings could help create a microbiome “catalog” for artwork, the researchers said. Each piece …
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