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  1. oxfordre.com › planetaryscience › displayComets | Oxford Research Encyclopedia of Planetary Science

    4 hours ago · and those reflecting particles heated by this action, heat the matter of the aether which is involved with them. That matter is rarefied by the heat which it acquires, and because, by this rarefaction, the specific gravity with which it tended towards the Sun before is diminished, it will ascend therefrom, and carry along with it the reflecting particles of which the tail of the comet is composed.

  2. en.wikipedia.org › wiki › Silicon_ValleySilicon Valley - Wikipedia

    1 day ago · Silicon Valley is a region in Northern California that is a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical area of the Santa Clara Valley. [1] [2] [3] The term "Silicon Valley" refers to the area in which high-tech business has proliferated ...

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  4. www.vietnam.vn › en › quang-ba-am-thuc-nen-co-danhQuảng bá ẩm thực nên có danh sách riêng - Vietnam.vn

    4 hours ago · Theo TS Nguyễn Thu Thủy, chuyên gia marketing và du lịch (ĐH Quốc gia Hà Nội, ảnh), các địa phương muốn quảng bá ẩm thực thì nên có danh sách điểm đến ẩm thực riêng. Đã 2 năm Michelin công bố các danh sách điểm đến ẩm thực tại VN. Nhưng dường như danh sách

  5. zh.wikipedia.org › wiki › 2007年8月逝世人物列表2007年8月逝世人物列表 - 维基百科，自由的百科全书

    4 hours ago · 谢尔盖·安东诺夫 （Sergei Antonov），59歲，保加利亞人，被指控參與穆罕默德·阿裡·阿卡（Mehmet Ali Ağca）企圖殺害教皇約翰·保羅二世。. [1] 里安·考克斯 （Ryan Cox），28歲，南非職業公路賽車手，血管手術後動脈破裂。. [2] 羅伯特·休斯 （Robert Hughes），95歲，澳 ...

  6. www.x-mol.com › news › 892622复旦大学张俊良、杨俊锋教授团队Angew：钯催化的次磺酰胺不对称芳基化...

    4 hours ago · 然而，很少有通过前手性硫（II）试剂的不对称偶联来生成手性硫（IV）产物的方法。这是因为次磺酰胺中存在的亲核N和S位点所引起的化学选择性问题，这在Maruoka等人关于亚砜胺烷基化的工作以及Jia和Kozlowski关于次磺酰胺Chan-Lam型芳基化的工作中已有证明。

  7. fr.wikipedia.org › wiki › James_Webb_(télescopeJames Webb (télescope spatial) — Wikipédia

    4 hours ago · La plateforme de l'observatoire James Webb rassemble les équipements qui servent de support pour le fonctionnement du télescope spatial. Elle est fixée sur la face éclairée du bouclier thermique, près du centre de masse de l'engin spatial. Elle contient beaucoup d'électronique qui génère de la chaleur.

  8. highlightnews.blob.core.windows.net › highlightUncovering The Extraordinary Life Of Jackie Chan's Wife, Joan Lin

    4 hours ago · Taiwanese actress Joan Lin's Short Bio, Wiki And Married Life With. Highlightnewslive Jul 08, 2024. ... Jaycee Chan, Etta Ng Chok Lam : Main Article Topics: