Category: Technology

Cryo–electron microscopy breaks the atomic resolution barrier at last

Cryo–electron microscopy reveals the atomic details of apoferritin, a hollow, spherically shaped protein complex that stores iron. Paul Emsley/MRC Laboratory of Molecular Biology By Robert F. ServiceOct. 21, 2020 , 11:00 AM If you want to map the tiniest parts of a protein, you only have a few options: You can coax millions of individual …

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Antivaccine videos slip through YouTube’s advertising policies, new study finds

YouTube users searching for vaccine-related content in Portuguese can end up in a network of antivaccination videos. Chris Ratcliffe/Bloomberg via Getty Images By Fernanda FerreiraNov. 2, 2020 , 11:00 AM As COVID-19 vaccines approach the finish line, public health officials around the world are battling waves of vaccine misinformation that could derail efforts to protect …

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New lasers that fire terahertz beams could propel medical imaging and contraband detection

A terahertz laser sits on top of a small square cooler. The laser could enable new portable medical diagnostics and explosive detectors. Ali Khalatpour/Massachusetts Institute of Technology By Robert F. ServiceNov. 2, 2020 , 3:10 PM Compact, chip-based lasers have conquered much of the electromagnetic spectrum, from ultraviolet to infrared, enabling technologies from digital communications and …

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Second cable breaks at Puerto Rico’s Arecibo telescope

In August, a detached auxiliary cable tore through the dish of Arecibo Observatory. Last week, another cable failed. ARECIBO OBSERVATORY By Daniel CleryNov. 9, 2020 , 2:40 PM The already battered Arecibo Observatory was hit with another blow on 7 November when one of its 12 main support cables snapped and tore through the radio …

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Watch speedy drones count Antarctic penguin colonies in record time

By Joel GoldbergNov. 10, 2020 , 11:00 AM Counting penguins is tough work: On Antarctica’s Cape Crozier, it takes scientists two full days to map the location of 300,000 nesting pairs of Adélie penguins, using helicopters and hand-flown drones. Meanwhile, brutal winds, freezing rain, and snow limit the flight windows for these laborious surveys. Now, …

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