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Add-on Renewables Aim to Decrease Impact and Increase Benefits

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Engineering 2024年第6期37卷 10-12页

作者： mitch leslie Senior Technology Writer

In the South Boulder Canal near Denver,CO,USA,turbine blades that resemble the mixers used to stir cake batter in kitchens(Fig.1)spin in the rushing water[1].Each of the turbines,manufactured by Emrgy of Atlanta,GA,USA,generates up to 25 kW of electricity for the area’s grid[2].In an orchard in southern Italy,an arcade of solar panels stands above rows of citron trees,which are valuable for the essential oils in their fruits[3].The solar panels not only produce electricity for local homes,but also protect the trees from the sun,reducing their water use by 70%[3].These are two examples of a clean energy trend:integrating power-generation with other *** the approach called agrivoltaics,for example,farmers and ranchers grow crops or raise livestock around and beneath solar panels(Fig.2)[4].Experts hope that such add-on strategies can spare farmland,cut the environmental costs of clean energy development,supply extra income to landowners,and furnish other benefits[5,6].

关键词： income beneath integrating

Can Giant Microchips Become a Big Deal?

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Engineering 2024年第5期36卷 6-8页

作者： mitch leslie Senior Technology Writer

For decades,manufacturers have boasted about how small they can make microchip *** have shrunk by about 1000-fold over the last 50 years,for example[1].But Cerebras Systems,*** Sunnyvale,CA,USA takes pride in how big its chips *** from a single silicon wafer,its Wafer-Scale Engine(WSE)-2 chips measure 46225 mm^(2),56 times the size of a standard Nvidia microprocessor(Fig.1)[2].

关键词： microprocessor Microchip Engine

Promising Results Predict Role for Artificial Intelligence in Weather Forecasting

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Engineering 2024年第8期39卷 10-12页

作者： mitch leslie 不详

Artificial intelligence(AI)has already demonstrated its proficiency at difficult scientific tasks like predicting how proteins will fold and identifying new astronomical objects in masses of observational data[1].Now,recent results suggest that AI also excels at weather *** global predictions,GraphCast,an AI system developed by Google subsidiary DeepMind(London,UK),outperforms the state-of-the-art model from the European Centre for Medium-Range Weather Forecasts(ECMWF),providing more accurate projections of variables such as temperature and humidity 90%of the time[2,3].Other AI systems,including Pangu-Weather from the Chinese tech company Huawei(Shenzhen,China)[4],can also match or beat traditional global forecasting models.

关键词： forecasting humidity weather

Is There a Bright Future for Solar Power from Space?

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Engineering 2024年第2期33卷 9-11页

作者： mitch leslie Senior Technology Writer

Late in the evening of May 22,2023,a team of researchers at the California Institute of Technology(Caltech)in Pasadena,CA,USA,measured a faint beam of microwaves emanating from a solar-powered satellite 550 km *** send signals to Earth all the time,but this occasion was *** satellite car-ried a unique transmitter developed by the Caltech researchers,a 30 cm by 30 cm array of polyimide and copper designed to be lightweight and *** that transmitter,the satellite became the first spacecraft to direct solar power captured in space to the Earth’s surface.

关键词： Earth Solar lightweight

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日本福岛核污染水排海引发争议

Engineering 2024年第3期34卷 6-8页

作者： mitch leslie Senior Technology Writer

In late August 2023,China cut off seafood imports from Japan[1]and criticized its neighbor for being “extremely selfish and irresponsible”[2].In Seoul,the Republic of Korea,protesters marched through the streets,held a candlelight vigil,and attempted to force their way into the Japanese embassy[3].The environmental organization Greenpeace denounced Japan for violating human rights and breaking international law[4].

关键词：核污染 breaking peace

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人工智能或将引发科学革命

Engineering 2024年第4期35卷 4-6页

作者： mitch leslie Senior Technology Writer

A drug developer trying to devise a new cancer treatment,a virologist investigating how a virus invades cells,an evolutionary biologist probing the effects of mutations on an organism’s fitness—these are just some of the scientists who need to know the three-dimensional structures of specific ***,deducing a protein’s shape through experiments is laborious and costly[1].

关键词：人工智能 cancer treatment

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人工智能能耗惊人

Engineering 2024年第1期32卷 7-9页

作者： mitch leslie Senior Technology Writer

In the month of August 2023,more than 180 million users logged on to ChatGPT(Fig.1)[1],the famous artificial intelligence(AI)chatbot[2].Developed by San Francisco,CA,USA-based OpenAI,ChatGPT can write prose in the style of Ernest Hemingway,generate computer code,help jobseekers craft their resumes,furnish reasonably accurate medical diagnoses,and perform a range of other sophisticated tasks[2-5].People who sign up for the free version of ChatGPT-as well as anyone else accessing the many Al-enhanced search engines and programs that are now available-do not have to pay for the *** it is not actually free.

关键词：人工智能 computer artificial

Commercial Moon Landings Multiply

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Engineering 2023年第11期30卷 10-12页

作者： mitch leslie Senior Technology Writer

Along with its familiar impact craters,the surface of the Moon sports numerous pale whorls and streaks known as lunar swirls[1].Likened to the pattern produced when someone pours cream into a cup of black coffee[2],the swirls can extend for more than 50 km and have puzzled researchers for centuries[3].Adding to their mystery,the features are associated with regions of magnetized rocks,an unusual attribute because the Moon lacks a magnetic field[3].Researchers do not know how the swirls are related to the magnetic fields or how they formed.

关键词： someone unusual Moon

Signaling the Future, Cell Phones Gain Limited Satellite-Link Capabilities

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Engineering 2023年第9期28卷 4-6页

作者： mitch leslie Senior Technology Writer

On 13 December 2022,a couple was driving through the Angeles National Forest near Los Angeles,CA,USA,when their car slid off the road,plowed 100 m down a steep hillside,and landed upside down at the bottom of a canyon[1].Although the couple suffered only minor injuries,they were trapped in the canyon,and in the remote area the passenger could not get any reception on her iPhone 14 cellular ***,she was able to send an SOS through a new feature on the phone that routes such messages via satellites[2].Rescuers alerted to the couple’s location airlifted them out of the canyon later the same day.

关键词： Rescue injuries driving