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Erdkunde – Archive for Scientific Geography is a quarterly peer-reviewed academic journal of geography published at the University of Bonn (Germany). Articles have been published in English since 2008.
The yellow lines describe how photons were scattered before the epoch of recombination and were free-streaming after. In astronomy, a free streaming particle is one that propagates through a medium without scattering. The particle is often a photon, but it can also refer to neutrinos, cosmic rays, and hypothetical dark matter particles.
Carl Ritter (August 7, 1779 – September 28, 1859) was a German geographer. Along with Alexander von Humboldt, he is considered one of the founders of modern geography, [1] as they established it as an independent scientific discipline. [2] [3] From 1825 until his death, he occupied the first chair in geography at the University of Berlin.
[2] Cosmos was influenced by Humboldt's travels and studies, but mainly by his journey throughout the Americas. As he wrote, “it was the discovery of America that planted the seed of the Cosmos.” [3] Due to all of his experience in the field, Humboldt was preeminently qualified for the task to represent the universe in a single work. [1]
Bunte Blätter (English: Colorful Leaves), Op. 99, is a collection of piano pieces by Robert Schumann assembled from earlier unpublished pieces after the success of the Album for the Young (Album für die Jugend), Op. 68. Upon publication the pieces were issued both as a complete set and individual pieces, the latter in differently colored covers.