In 1812, during his tenure at the university, he was sent to Riga to aid the city after Napoleon's armies had laid siege to it.
After leaving Tartu, he continued his education in Berlin, Vienna, and Würzburg, where Ignaz Döllinger introduced him to the new field of embryology. In 1817, he became a professor at Königsberg University (Kaliningrad) and full professor of zoology in 1821, and of anatomy in 1826.
After leaving Tartu, he continued his education in Berlin, Vienna, and Würzburg, where Ignaz Döllinger introduced him to the new field of embryology. In 1817, he became a professor at Königsberg University (Kaliningrad) and full professor of zoology in 1821, and of anatomy in 1826.
After leaving Tartu, he continued his education in Berlin, Vienna, and Würzburg, where Ignaz Döllinger introduced him to the new field of embryology. In 1817, he became a professor at Königsberg University (Kaliningrad) and full professor of zoology in 1821, and of anatomy in 1826.
In 1826, Baer discovered the mammalian ovum.
In 1827, he completed research Ovi Mammalium et Hominis genesi for St Petersburg's Academy of Science (published at Leipzig).
In 1827 von Baer became the first person to observe human ova.
In 1829, he taught briefly in St Petersburg, but returned to Königsberg.
At the end of the 1830s, he recommended sending expeditions to explore permafrost in Siberia and suggested Alexander von Middendorff as leader.
Baer Island in the Kara Sea was named after Karl Ernst von Baer for his important contributions to the research of arctic meteorology between 1830 and 1840.
In 1834, Baer moved back to St Petersburg and joined the St Petersburg Academy of Sciences, first in zoology (1834–46) and then in comparative anatomy and physiology (1846–62).
Baer recorded the importance of permafrost research even before 1837 when observing in detail the geothermal gradient from a 116.7 m deep shaft in Yakutsk.
Numerous of Baers' papers on permafrost were already published as early as 1837 and 1838.
However, from 1838 onwards, Baer published a larger number of small publications on permafrost.
Numerous of Baers' papers on permafrost were already published as early as 1837 and 1838.
Well known was his paper "On the Ground Ice or Frozen Soil of Siberia", published in the Journal of the Royal Geographical Society of London (1838, p. 210-213) and reprinted 1839 in the American Journal of Sciences and Arts by S.
Kaiserlichen Akademie der Wissenschaften, 1839.
Baer Island in the Kara Sea was named after Karl Ernst von Baer for his important contributions to the research of arctic meteorology between 1830 and 1840.
Baer summarized his knowledge in 1842/43 in a print-ready typescript.
Middendorff (1815-1894), as he did much scientific work during the years 1842-1845 concerning permafrost on Taimyr Peninsula and in East-Siberia.
They even believed, that the scepticism about the permafrost findings and publications of Middendorff would not have risen, if Baer's original "materials for the study of the perennial ground-ice" would have been published in 1842 as intended.
This was realized also by the Russian Academy of Sciences that honoured Baer with the publication of a tentative Russian translation done already in 1842 by Sumgin.
The first post-World War major contact between groups of senior Russian and American frozen ground researchers took place in November 1963 in Yakutsk.However, Baer's permafrost textbook remained still undiscovered. Thus in 2001 the discovery and annotated publication of the typescript from 1843 in the library archives of the University of Giessen was a scientific sensation.
However, this was repudiated by Albert Einstein's tea leaf paradox. ==Awards and distinctions== In 1849, he was elected a foreign honorary of the American Academy of Arts and Sciences.
He was elected a foreign member of the Royal Swedish Academy of Sciences in 1850.
According to Darwin: "Von Baer, towards whom all zoologists feel so profound a respect, expressed about the year 1859...
"Über ein allgemeines Gesetz in der Gestaltung der Flußbetten", Kaspische Studien, 1860, VIII, S.
Google Books. Karl Ernst von Baer, Welche Auffassung der lebenden Natur ist die richtige? Berlin, 1862 ==References== ===Further reading=== Wood C, Trounson A.
He produced an early phylogenetic tree revealing the ontogeny and phylogeny of vertebrate embryos. In the fifth edition of On the Origin of Species published in 1869, Charles Darwin added a Historical Sketch giving due credit to naturalists who had preceded him in publishing the opinion that species undergo modification, and that the existing forms of life have descended by true generation from pre-existing forms.
He was the president of the Estonian Naturalists' Society in 1869–1876, and was a co-founder and first president of the Russian Entomological Society.
In 1875, he became a foreign member of the Royal Netherlands Academy of Arts and Sciences. ==Legacy== A statue honouring him can be found on Toome Hill in Tartu, as well as at Lasila manor, Estonia, and at the Zoological Museum in St Petersburg, Russia.
The human ovum was first described by Edgar Allen in 1928.
However, Russian scientists during the 1940s also realized, that it was K.
The first post-World War major contact between groups of senior Russian and American frozen ground researchers took place in November 1963 in Yakutsk.However, Baer's permafrost textbook remained still undiscovered. Thus in 2001 the discovery and annotated publication of the typescript from 1843 in the library archives of the University of Giessen was a scientific sensation.
Springer-Verlag, Berlin 1984, Page 6. Baer, K E v.
The first post-World War major contact between groups of senior Russian and American frozen ground researchers took place in November 1963 in Yakutsk.However, Baer's permafrost textbook remained still undiscovered. Thus in 2001 the discovery and annotated publication of the typescript from 1843 in the library archives of the University of Giessen was a scientific sensation.
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