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Georg Heinrich Thiessen
Georg Heinrich Thiessen (19 January 1914 – 3 July 1961) was a German astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either .... After graduating, Georg Thiessen studied physics and mathematics and received his doctorate in 1940 under Richard Becker at Göttingen Georg August University. He joined the Fraunhofer Institute of the Institute for High Frequency Research in Freiburg in Breisgau in 1943, where he met Karl-Otto Kiepenheuer. In January 1945 he was transferred to the observatory in Hamburg-Bergedorf, where he was employed as assistant and later as 'Observator' from 1946 to 1953. In 1953 he habilitated on the subject of magnetic fields of the sun, he believed in the existence of a global solar magnetic field. He was promoted to professor in 1959. On 3 of July 1961 h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Heinrich Thiessen
Georg Heinrich Thiessen (19 January 1914 – 3 July 1961) was a German astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either .... After graduating, Georg Thiessen studied physics and mathematics and received his doctorate in 1940 under Richard Becker at Göttingen Georg August University. He joined the Fraunhofer Institute of the Institute for High Frequency Research in Freiburg in Breisgau in 1943, where he met Karl-Otto Kiepenheuer. In January 1945 he was transferred to the observatory in Hamburg-Bergedorf, where he was employed as assistant and later as 'Observator' from 1946 to 1953. In 1953 he habilitated on the subject of magnetic fields of the sun, he believed in the existence of a global solar magnetic field. He was promoted to professor in 1959. On 3 of July 1961 h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunspots
Sunspots are phenomena on the Sun's photosphere that appear as temporary spots that are darker than the surrounding areas. They are regions of reduced surface temperature caused by concentrations of magnetic flux that inhibit convection. Sunspots appear within active regions, usually in pairs of opposite magnetic polarity. Their number varies according to the approximately 11-year solar cycle. Individual sunspots or groups of sunspots may last anywhere from a few days to a few months, but eventually decay. Sunspots expand and contract as they move across the surface of the Sun, with diameters ranging from to . Larger sunspots can be visible from Earth without the aid of a telescope. They may travel at relative speeds, or proper motions, of a few hundred meters per second when they first emerge. Indicating intense magnetic activity, sunspots accompany other active region phenomena such as coronal loops, prominences, and reconnection events. Most solar flares and corona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1914 Births
This year saw the beginning of what became known as World War I, after Archduke Franz Ferdinand of Austria, heir to the Austrian throne was assassinated by Serbian nationalist Gavrilo Princip. It also saw the first airline to provide scheduled regular commercial passenger services with heavier-than-air aircraft, with the St. Petersburg–Tampa Airboat Line. Events January * January 1 – The St. Petersburg–Tampa Airboat Line in the United States starts services between St. Petersburg and Tampa, Florida, becoming the first airline to provide scheduled regular commercial passenger services with heavier-than-air aircraft, with Tony Jannus (the first federally-licensed pilot) conveying passengers in a Benoist XIV flying boat. Abram C. Pheil, mayor of St. Petersburg, is the first airline passenger, and over 3,000 people witness the first departure. * January 11 – The Sakurajima volcano in Japan begins to erupt, becoming effusive after a very large earthquake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_2007-04-30_T001456.gif "Click for more on -> Sunspots")
