截取其中一篇文章部分内容：

Planetary
Motion Machine
The Antikythera mechanism is one of the most astonishing discoveries in archaeology. Salvaged from a 2,000-year-old shipwreck in Greece in 1900, the intricately geared contraption was quickly recognized as a machine for calculating the movement of the moon and planets. It continues to surprise, as researcher Tony Freeth reveals on page 24. The gears are more delicate and complex than we knew when Freeth shared his team’s results in 2009, predicting more celestial events with precision and ingenuity. This isn’t the first issue of Scientific American to share the Antikythera device on the cover; it was our lead story in June 1959 as well. That edition, available in our digital archives, is bursting with ads for new plastics—Marlex from the Phillips Chemical Company, Delrin from DuPont—asbestos fiber from Johns-Manville, rocket navigators from Northrop, and the “first all transistorized analog computer” for $4,000 from Electronic Associates, Inc. Many of these products are long forgotten, but the Antikythera
(pronounced with stress on the syllable “kyth,” like “pith”) mechanism and research on it will probably outlast them all.

科学美国人 Scientific American-2022-01 英文版 PDF电子版 百度网盘下载:

链接：https://wwt.lanzoue.com/b02ju22of

密码:   

注：其它所有月刊最新一期已实时更新至会员区！

•  有长期阅读需求可众筹VIP会员：点击查看

•  链接可能会定期失效，获取链接及更多外刊，加微信（id16881086）或扫下方二维码获取

All the content is for demonstration only, we do not store the files and after reading you we ask you to buy a printed version of the magazine.