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全球第二大加密货币削减能源消耗

Engineering 2023年第6期25卷 6-8页

作者： mitch Leslie Senior Technology Writer

The year 2022 was a milestone for cryptocurrencies-and not just because investors suffered record losses of more than2 × 1012USD and the arrest on fraud charges of the founder of one of the biggest exchanges [1,2]. Last year also stands out because, for the first time, a major cryptocurrency took action to curb its enormous energy appetite. On 15 September 2022,Ethereum, the cryptocurrency with the second highest market capitalization, changed its operating algorithm, cutting its electricity use by more than 99% [3]. Dubbed the Merge, this transformation dispensed with mining, the energy intensive computational process that generates new cryptocurrency tokens for users to spend or trade.

关键词： token spend currency

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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

Robots Get Smarter with Help from Artificial Intelligence

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Engineering 2024年第9期40卷 1-3页

作者： mitch Leslie Senior Technology Writer

In 2023,residents of 22 homes in New York City agreed to take part in an unusual *** several hours,they performed a variety of common household tasks with an iPhone-outfitted reacher grabber—a tool commonly used for picking up litter and by wheel-chair-bound people to grasp out-of-reach objects(Fig.1)[1,2].As each volunteer conducted simple household activities such as opening and closing doors,picking up bags of trash,turning on toasters,flipping on light switches,and straightening couch cushions,the phones captured video of the grabber’s movements and measured its position and orientation[1].

关键词： residents straight turning

对矿产的巨大需求是否会阻碍清洁能源转型升级?

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Engineering 2023年第12期31卷 8-10页

作者： mitch Leslie Senior Technology Writer

Electric cars purring along the highway differ from nearby internal combustion vehicles not just in their source of *** parts such as wires and inverters,electric cars require more than twice as much copper as their conventional counterparts[1,2].To keep their batteries generating electricity,they need more than double the amount of manganese[1,3].The average electric car also incorporates an assortment of minerals absent from internal combustion vehicles,including nearly 40 kg of nickel,13 kg of cobalt,almost9 kg of lithium,and half a kilogram of rare earth elements such as neodymium,a key component of electric motors[1,4].

关键词： inverter neodymium manganese

韦伯太空望远镜大显身手,令天文学家叹为观止

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Engineering 2023年第3期22卷 3-6页

作者： mitch Leslie Senior Technology Writer

The james Webb Space Telescope(jWST),which cleared a slew of complex technical hurdles and became operational over 2021,has awed and surprised astronomers(Figs.1 and 2).“We are able to see things we had not imagined we would see,”said Christopher Willmer,associate research professor at the University of Arizona Steward Observatory in Tucson,AZ,USA,who has worked on the project since 2007.

关键词：太空望远镜 Steward Arizona

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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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风驰“电”掣,电动竞技赛车冲向未来

Engineering 2023年第5期24卷 10-12,I0001页

作者： mitch Leslie Senior Technology Writer

john Metric was shocked the first time he drove his electric dragster,a modified 1984 Pontiac Fiero(Fig.1).Metric had swapped the car’s gasoline engine for two electric motors that could generate 1830 N·m of *** he ... 详细信息

关键词： accelerator engine gasoline

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水上太阳能电池板能否引发关注?

Engineering 2023年第2期21卷 3-5页

作者： mitch Leslie Senior Technology Writer

Some 6300 km of canals crisscross the US state of California to funnel water to its rich farmland and cities such as Los Angeles[1].But visitors who travel through California’s Central Valley starting in 2024 will see something unusual near the city of Modesto:Solar panel arrays up to 33 m across covering more than 3 km of the canals snaking through the agricultural area(Fig.1)[2].

关键词：太阳能电池板 farmland travel

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绿色低碳合成氨技术前景光明

Engineering 2023年第7期26卷 3-5,I0001页

作者： mitch Leslie Senior Technology Writer

At first glance,the 10 cm×10 cm stainless steel box that Douglas Mac Farlane,professor of chemistry at Monash University in Clayton,Australia,and his colleagues designed does not look like anything special(Fig.1).

关键词： steel breakthrough electrical