Q&A: Reasons for hope amid California’s drought

Despite the rain that drenched central and northern California recently, drought still casts a long shadow over the state. The consequences of a multi-year water shortage are dire: reservoirs that serve millions of people and massive swaths of farmland are disappearing, hydroelectric dams are in danger of losing power and wild salmon are facing mass […]

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Clippanes join rotaxanes and catenanes in mechanically interlocked molecule family

A new member has joined the family of mechanically interlocked molecules. Its discoverers dubbed them clippanes since their chemical structure resembles that of two intertwined Keck clips. According to the definition proposed by 2016 chemistry Nobel laureate Fraser Stoddart, mechanically interlocked molecules consist of two or more separate components that can only be untangled by breaking […]

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The amateur, astronomical, antiquarian aristocrat from Aix

In a recent blog post about the Minim friar, Marin Mersenne (1588–1648), I mentioned that when Mersenne arrived in Paris in 1619 he was introduced to the intellectual elite of the city by Nicolas-Claude Fabri de Peiresc (1580-1637). In another recent post on the Republic of Letters I also mentioned that Peiresc was probably, the periods […]

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Sustainable fashion aims to make green the new black

Fast fashion, which encourages clothing to be quickly discarded and replaced, uses significant amounts of natural, social, and creative resources and creates excessive waste. Research into sustainable fashion aims to change this. Employing more than 300 million people and producing 100 billion items every year, the fashion industry has a colossal impact on the environment. Driving this […]

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Carbon nanotube-based sensor can detect SARS-CoV-2 proteins

Using specialized carbon nanotubes, MIT engineers have designed a novel sensor that can detect SARS-CoV-2 without any antibodies, giving a result within minutes. Their new sensor is based on technology that can quickly generate rapid and accurate diagnostics, not just for Covid-19 but for future pandemics, the researchers say. “A rapid test means that you […]

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Meltable MOF glass made with ionic liquid

Mixing metal–organic frameworks (MOFs) with ionic liquids makes for meltable porous materials, researchers have discovered. Such MOF glasses could find applications in gas separation and water treatment. ‘These hybrid materials combine the adsorbing properties of powdered MOFs and the processability of glass,’ explains Lothar Wondraczek from the University of Jena, Germany, who led the study […]

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To foil fake news, focus on infectiousness

In the last decade or so, much handwringing has transpired over “fake news” – stories that are not factually accurate that seem to get wedged in the popular psyche and stick. Many now accept the conventional wisdom that fake news spreads “farther, faster, deeper and more broadly than the truth.” “The online spread of fake […]

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‘Nanozyme’ therapy prevents harmful dental plaque build-up

Agrowing body of evidence points to a link between iron-deficiency anemia and severe tooth decay. Whether the connection is correlative or causative is unknown, though both conditions are associated with poor diets and are more common in people living in impoverished environments and with underlying medical conditions. Now, research from the University of Pennsylvania, in collaboration […]

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