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  2. Erdkunde - Wikipedia

    en.wikipedia.org/wiki/Erdkunde

    However, since preparations for the new journal were already well advanced in Bonn, the plan was pursued and the first issue of the journal "Erdkunde Archiv für Wissenschaftliche Geographie" was published in 1947. [3] The title of the journal emerged from the original plan to continue the "Zeitschrift der Gesellschaft für Erdkunde zu Berlin".

  3. Karl Helbig - Wikipedia

    en.wikipedia.org/wiki/Karl_Helbig

    Karl Helbig was born in Hildesheim on March 18, 1903, the son of the engineer Otto Helbig and his wife Ida, née Manß. In 1912 he transferred from the preschool to the Realgymnasium there and passed the school-leaving examination in 1921.

  4. Gesellschaft für Erdkunde zu Berlin - Wikipedia

    en.wikipedia.org/wiki/Gesellschaft_für_Erdkunde...

    The Gesellschaft für Erdkunde zu Berlin (Berlin Geographical Society) was founded in 1828 and is the second oldest geographical society. It was founded by some of the foremost geographers of its time. The founder Carl Ritter and the founding member Alexander von Humboldt can also be considered the founders of modern scientific geography.

  5. 50th parallel north - Wikipedia

    en.wikipedia.org/wiki/50th_parallel_north

    The 50th parallel north is a circle of latitude that is 50 degrees north of the Earth's equatorial plane. It crosses Europe , Asia , the Pacific Ocean , North America , and the Atlantic Ocean . At this latitude the sun is visible for 16 hours, 22 minutes during the summer solstice and 8 hours, 4 minutes during the winter solstice . [ 1 ]

  6. Carl Ritter - Wikipedia

    en.wikipedia.org/wiki/Carl_Ritter

    Carl Ritter was born in Quedlinburg, one of the six children of a doctor, F. W. Ritter.. Ritter's father died when he was two. At the age of five, he was enrolled in the Schnepfenthal Salzmann School, a school focused on the study of nature (apparently influenced by Jean-Jacques Rousseau's writings on children's education).

  7. Zach Ertz returns to Philadelphia for the NFC title game as a ...

    www.aol.com/zach-ertz-returns-philadelphia-nfc...

    The thought invaded Zach Ertz's mind late in 2023 when he was out of football and a year removed from knee surgery. Ertz not only showed he was, he's now one step from playing for another ...

  8. Malakozoologische Blätter - Wikipedia

    en.wikipedia.org/wiki/Malakozoologische_Blätter

    Malakozoologische Blätter was a German-language journal for malacology. It was published from 1854 to 1891 as a continuation of Zeitschrift für Malakozoologie (which was published 1844–1853). Karl Theodor Menke and Ludwig Karl Georg Pfeiffer were joint co-editors-in-chief, until Menke's death in 1861 after which Pfeiffer became sole editor ...

  9. Hesse normal form - Wikipedia

    en.wikipedia.org/wiki/Hesse_normal_form

    Distance from the origin O to the line E calculated with the Hesse normal form. Normal vector in red, line in green, point O shown in blue. In analytic geometry, the Hesse normal form (named after Otto Hesse) is an equation used to describe a line in the Euclidean plane, a plane in Euclidean space, or a hyperplane in higher dimensions.