Two formulas are set in floor-tiles in the foyer of the Wuerzburg building that houses the laboratory in which Wilhelm Roentgen discovered X-rays in 1895. But what do they mean, and what have they got to do with Roentgen or his work? The answers involve two distinguished professors and their PhD students, working on opposite sides of the Atlantic in the 19th Century.
Увлекательная история формул на плитках пола в Вюрцбургском университете
Two formulas are set in floor-tiles in the foyer of the Wuerzburg building that houses the laboratory in which Wilhelm Roentgen discovered X-rays in 1895. But what do they mean, and what have they got to do with Roentgen or his work? The answers involve two distinguished professors and their PhD students, working on opposite sides of the Atlantic in the 19th Century.
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Dresdner Residenzschloss
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Взываю к коллективному разуму: кто это???
Вчера сфотографировал вот такую серую птичку, спинка у нее коричневатая. Размер обычный, типа воробья-варакушки-овсянки... Получилось неплохо…
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Муха
Поскольку горихвостки относятся к мухоловковым, то в диалектическую пару к ней публикую мухарика, снятого в тот же день, но уже в лесу:…
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