Engineering Design
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Health & MedicineRemdesivir is looking even better at fighting COVID-19
New studies suggest the drug remdesivir not only speeds recovery of COVID-19 patients in the hospital, but lowers their risk of death from the virus.
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Materials ScienceShape-shifting cuts give shoes a better grip
With pop-out structures inspired by kirigami and animals, a shoe sole goes from flat to spiky to boost friction on slippery surfaces such as ice.
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Health & MedicineAh-choo! Healthy sneezes, coughs sound just like sick ones to us
Think you can tell a sick cough from a healthy one? Think again. New research finds the human ear isn’t sensitive enough to tell the difference.
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PhysicsA contrast between shadows and light can now generate electricity
A new device exploits the contrast between bright spots and shade to produce a current that can power small electronics.
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AnimalsToxic germs on its skin make this newt deadly
Bacteria living on the skin of some rough-skinned newts make tetrodotoxin. This paralyzing poison is also found in pufferfish.
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Health & MedicineCommon drug, dexamethasone, appears first to cut COVID-19 deaths
A drug used for decades to treat inflammation now appears useful in saving the lives of severely ill COVID-19 patients — ones who have trouble breathing.
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Health & MedicineDeadly heat: Expected by century’s end, it’s here already
Instances of hot and humid conditions that threaten human lives are on the rise.
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Materials ScienceSilk-based microneedles may help treat diseased plants
Engineers have invented silk microneedles to inject medicines into plants. One day farmers might use drones to dart their sick plants with meds from the air.
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Materials ScienceAstronauts may be able to make cement with their own pee
Lunar dust and a compound found in urine might one day be used to build future dwellings on the moon, a new study finds.
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Health & MedicineWaiting for a ‘smart’ toilet? It’s nearly here
With every bathroom visit, we flush away important health data. Scientists hope to change that with 'smart toilets' that analyze your body’s output.
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Health & MedicineCoronavirus lockdowns may have avoided 531 million infections
Studies find big benefits from global coronavirus lockdowns. More than a half a billion of the potentially deadly infections appear to have been avoided.
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AnimalsThis tube worm’s glowing slime may help sustain its own shine
Snot oozed by a marine tube worm can glow for up to 3 full days. The secret of how this works might lead to long-lasting lights that glow on and on.