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Day by day Briefing: DARPA Responds to a Request for Tweets for an Underground Den

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Carbon nanotubes are sheets of coiled carbon atoms organized in hexagons. Credit score: Stefan Diller / Science Picture Library

Scientists have created the biggest laptop chip ever constructed from carbon nanotubes: thick graphene-wrapped sheets just like the atom that drive electrical energy at super-fast speeds. Some researchers hope that these might substitute the silicon chips, whose energy will increase whereas their transistor switches shrink, however attain a restrict. The carbon nanotube machine is much from being a contemporary laptop processing unit, but it surely has launched the next message: "Howdy, the world! I’m RV16XNano, constructed from CNT. "

Nature | three min studying

Wild sharks and elephants will sleep extra simply of their beds after the adoption of recent protections this week by the Conference on Worldwide Commerce in Endangered Species of Wild Fauna and Flora (CITES). Eighteen species of endangered sharks and rays will now be topic to strict worldwide commerce rules to make sure that any fishery doesn’t threaten their long-term survival within the wild. And African elephant infants will not be allowed to be taken from their households within the wild and despatched to zoos besides in distinctive circumstances.

BBC | four min studying and Mongabay | 9 min learn

DARPA wants a "man-made underground atmosphere, overlaying a number of blocks and presenting a fancy configuration and a number of flooring" – and it wants it by Friday. The US analysis company tweeted a name yesterday for "underground city tunnels belonging to universities or managed commercially and services able to internet hosting analysis and experimentation." Sensible folks right here at Nature recommend that the demand may be associated to the subterranean problem of the company.

Vice | 2 min learn

CHARACTERISTICS AND ADVICE

PhD packages in science deal with nearly completely college college students, however this isn’t an obligation, says Sarah Anderson, PhD candidate in chemistry. She argues that tutorial necessities and extracurricular occasions needs to be expanded to mirror totally different paths from these of the lecturers who administer them.

Nature | 5 min studying

"The 150-year-old Mendeleev periodic desk has turn out to be the menu of a world hungry for materials advantages," writes Peter Coy, editor of the financial part, in introducing this concern. relatively jazzy particular from Bloomberg Businessweek. The journal focuses on an interesting story for every of the weather, together with uranium, tiptoes past the heavier parts and ends on a optimistic observe with a "tremendous scientific, 100% scientific" evaluation , essentially the most inventive wonders and under no circumstances pure ". "

Bloomberg Businessweek | One hour + learn

Learn extra: Nature additionally did a particular present on the event of the 150th anniversary of the periodic desk and it was actually nice (from January)

Andrea Saltelli, an analyst of sensitivity, believes that the disaster of statistics, which calls scientists specifically to surrender any statistical significance, ought to encourage us to rethink mathematical modeling. He requires a "resistance motion" to get out of the shadows the assumptions, inadequacies and limitations of the fashions.

Nature Communications | eight min learn

QUOTE OF THE DAY

Arriving in New York after a 15-day sea journey from the UK, younger local weather activist Greta Thunberg shares her message with US President Donald Trump. (The New York Instances)

Physicist Michael Betancourt requested Twitter "your hottest insult of critics." The solutions embody gems reminiscent of "This manuscript is for science as astrology is for astronomy." Ouch! Happily, many are adopted by tales in regards to the final triumph of the creator, so it's very encouraging. I promise to reply solely in essentially the most cordial phrases when you e mail me your feedback on this text on the briefing@nature.com deal with.

Flora Graham, Editor-in-Chief, Nature Briefing

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