Bøger af Johann Carl Friedrich Zollner

""�����ber die Natur der Cometen: Beitr�����ge zur Geschichte und Theorie der Erkenntnis"" ist ein Buch von Johann Carl Friedrich Z������llner aus dem Jahr 1872. Das Buch besch�����ftigt sich mit der Natur von Kometen und bietet Beitr�����ge zur Geschichte und Theorie der Erkenntnis. Z������llner beschreibt die Entdeckung von Kometen und ihre Bedeutung f�����r die Astronomie. Er diskutiert auch verschiedene Theorien �����ber die Natur von Kometen und ihre Zusammensetzung. Das Buch ist eine wichtige Quelle f�����r die Geschichte der Astronomie und bietet einen Einblick in die wissenschaftliche Forschung des 19. Jahrhunderts.This Book Is In German.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.

A pioneer in the field of astrophysics, Johann Zöllner (1834-1882) was a professor of physics and astronomy at the University of Leipzig and an associate of the Royal Astronomical Society. Zöllner was best known for his work on astronomical photometry and spectrum analysis, on which he published widely. He invented the astronomical photometer used for measuring stellar magnitudes. He was also interested in optical illusions: the 'Zöllner illusion' consists of straight parallel lines which appear to be unparallel. This book, published in German in 1878-1879 and translated into English by Charles C. Massey in London in 1880, exemplifies the shift in Zöllner's interests in later life: he became involved in the public debate surrounding the scientific veracity of spiritualism. Here Zöllner describes his observations of experiments conducted by the medium Henry Slade in his own home.