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Vor einem Tag · Niels Bohr, the developer of the Bohr model of the atom, and a leading founder of quantum mechanics Main articles: Niels Bohr and Bohr model In 1913, Niels Bohr , a Danish physicist, introduced the concepts of quantum mechanics to atomic structure by proposing what is now known as the Bohr model of the atom, where electrons exist only in strictly defined circular orbits around the nucleus ...
Vor einem Tag · Hayatı [değiştir | kaynağı değiştir] Genç Henri Poincare Poincaré, 29 Nisan 1854'te Nancy , Meurthe-et-Moselle'deki Cité Ducale semtinde etkili bir Fransız ailesinde doğdu. Babası Léon Poincaré (1828-1892) Nancy Üniversitesi 'nde tıp profesörüydü. Küçük kız kardeşi Aline, manevi filozof Émile Boutroux ile evlendi. Henri'nin ailesinin bir diğer önemli üyesi, 1913 ...
Vor einem Tag · Stunning and functional, excellent shape for its age. Lighting on them produces some amazing caustics, super beautiful. Some super minor wear and scratches. Overall presents amazingly. Priced...
Vor 2 Stunden · De Rerum Natura A natureza das coisas
Vor einem Tag · 导读： 杨振宁和罗伯特·米尔斯在1954年发现的定域规范场论，是标准模型的重要基石。回顾这一理论的研究和发表过程，杨振宁先生感慨道，“这篇文章是我一生最重要的工作，虽然未竟全功，但是决定当时发表是极正确的。
Vor 2 Stunden · Infinera (Nasdaq: INFN) has announced that Regan MacPherson has been named Chief Legal Officer and Corporate Secretary, effective May 18. Ms. MacPherson will report to Infinera CEO David Heard and will oversee the company’s global legal strategy and corporate governance matters and policies. Ms. MacPherson succeeds David Teichmann, whose distinguished tenure with the company includes
