James B. Pollack (July 9, 1938 – June 13, 1994) was an American astrophysicist. Events 455 - Roman military commander Avitus is proclaimed Emperor of the Western Roman Empire. Year 1938 ( MCMXXXVIII) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar. Events 1525 - Martin Luther marries Katharina von Bora, against the Celibacy rule decreed by the Roman Catholic Church for Year 1994 ( MCMXCIV) was a Common year starting on Saturday (link will display full 1994 Gregorian calendar) The United States of America —commonly referred to as the Astrophysics is the branch of Astronomy that deals with the Physics of the Universe, including the physical properties ( Luminosity, He worked for NASA's Ames Research Center. The National Aeronautics and Space Administration ( NASA, ˈnæsə is an agency of the United States government, responsible for the nation's public space program NASA Ames Research Center (ARC is a NASA facility located at Moffett Federal Airfield, which covers 43 acres at the borders of the cities of Mountain View
Pollack was born on 9 July 1938 and was brought up in Woodmere, Long Island by a Jewish family that was in the women's garment business. Events 455 - Roman military commander Avitus is proclaimed Emperor of the Western Roman Empire. Year 1938 ( MCMXXXVIII) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar. He was a high school valedictorian and graduated from Princeton University in 1960. He then received his master's at University of California, Berkeley in 1962 and his Ph. The University of California Berkeley (also referred to as Cal, Berkeley and UC Berkeley) is a major research university located in Berkeley D from Harvard in 1965, where he was a student of Carl Sagan. Carl Edward Sagan ( November 9 1934 &ndash December 20 1996) was an American Astronomer, astrochemist, author [1]
Pollack specialized in atmospheric science[2], especially the atmospheres of Mars and Venus. Atmospheric sciences is an umbrella term for the study of the atmosphere, its processes the effects other systems have on the atmosphere and the effects of the atmosphere The VENUS ( V ictoria E xperimental N etwork U nder the S ea project is a cabled sea floor observatory operated by the University He investigated the possibility of terraforming Mars, the extinction of the dinosaurs and the possibility of nuclear winter since the 1980s with Christopher McKay and Sagan. The terraforming (literally "Earth-shaping" of a Planet, moon, or other body is the hypothetical process of deliberately modifying its Nuclear winter is a term that describes the climatic effects of nuclear war. Christopher McKay can refer to Christopher McKay (planetary scientist, planetary scientist at NASA Ames Research Center Christopher McKay (footballer [3]. The work of Pollack et al. (1996) on the formation of giant planets ("core accretion paradigm") is seen today as the standard model [4].
He explored the weather on Mars using data from the Mariner 9 spacecraft and the Viking mission. The weather is a set of all the phenomena occurring in a given Atmosphere at a given Time. Mariner 9 (Mariner Mars '71 / Mariner-I was a NASA space probe orbiter that helped in the exploration of Mars and was part of the Mariner program. NASA 's Viking program consisted of a pair of space probes sent to Mars, Viking 1 and Viking 2. On this he based ground-breaking computer simulations of winds, storms, and the general climate on that planet. An overview of Pollack's scientific vita is given in the memorial talk "James B. Pollack: A Pioneer in Stardust to Planetesimals Research" [5] held at a Astronomical Society of the Pacific 1996 symposium. The Astronomical Society of the Pacific (ASP is a scientific and educational organization founded in San Francisco in 1889. Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar)
He was a recipient of the Gerard P. Kuiper Prize in 1989 for outstanding lifetime achievement in the field of planetary science. The Gerard P Kuiper Prize is awarded annually by the Division for Planetary Sciences of the American Astronomical Society for outstanding lifetime achievement in Pollack died in 1994 from a rare form of cancer.
A crater on Mars was named in his honor. In the broadest sense the term impact crater can be applied to any depression natural or manmade resulting from the high velocity impact of a projectile with larger body
External links
References
- ^ Davidson, Keay (1999). Carl Sagan A Life, John Wiley & Sons ISBN 0-471-39536-6 (This book is dedicated to Pollack)
- ^ Christopher McKay - astrogeophysicist - Interview (htm). Retrieved on 2006-04-28. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 1192 - Assassination of Conrad of Montferrat (Conrad I King of Jerusalem, in Tyre, two days after his title
- ^ Pale Blue Dot (txt). Retrieved on 2006-04-28. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 1192 - Assassination of Conrad of Montferrat (Conrad I King of Jerusalem, in Tyre, two days after his title
- ^ Core Accretion Model (html). Retrieved on 2007-08-09. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 48 BC - Caesar's civil war: Battle of Pharsalus - Julius Caesar decisively defeats Pompey at Pharsalus
- ^ James B. Pollack: A Pioneer in Stardust to Planetesimals Research (pdf). Retrieved on 2007-13-09.
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