American scientist stubs

Vernon Francis Dvorak (November 15, 1928 – September 19, 2022) was an American meteorologist. He studied meteorology at the University of California, Los Angeles and wrote his Master thesis An investigation of the inversion-cloud regime over the subtropical waters west of California in 1966. In 1973 he developed the Dvorak technique to analyze tropical cyclones from satellite imagery. He worked with the National Environmental Satellite, Data, and Information Service. He lived in Ojai, California, until his death on September 19, 2022.

Caleb Ellicott Finch (born July 4, 1939) is an American academic who is a professor at the USC Davis School of Gerontology. Finch's research focuses on aging in humans, with a specialization in cell biology and Alzheimer's disease.

Fritz Heinrich Lewy (; January 28, 1885 – October 5, 1950), known in his later years as Frederic Henry Lewey, was a German-born American neurologist. He is best known for the discovery of Lewy bodies, which are a characteristic indicator of Parkinson's disease and dementia with Lewy bodies.Lewy was born to a Jewish family in Berlin, Germany, on January 28, 1885. He trained in Berlin and Zürich and graduated from Berlin in 1910. He worked in Alois Alzheimer's Munich laboratory and was contemporary with Hans Gerhard Creutzfeldt (1885–1964), Alfons Maria Jakob (1884–1931) and Ugo Cerletti (1877–1963). In 1933, he fled Nazi Germany and moved to the United States. Lewy died in Haverford, Pennsylvania, on October 5, 1950, aged 65.

Charles Carter Schnetzler (June 3, 1930 – December 15, 2009) was a planetary scientist at NASA's Goddard Space Flight Center. Schnetzler is best known for analyzing Moon rocks brought back by the Apollo program and for studying the Earth's environment using the Landsat and the Earth Observing System. Schnetzler was born in Whiting, Indiana and grew up in Neodesha, Kansas. On November 4, 2009, Schnetzler was seriously injured after being hit by a motorist while walking near his home on Little Patuxent Parkway in Columbia, Maryland. He later died in his home on December 15, 2009.

Charles Fay Passel (April 9, 1915 – December 27, 2002) was a polar scientist responsible along with Paul Siple for the development of the wind chill factor parameter.

Robert Nason Beck (March 26, 1928, in San Angelo, Texas – August 6, 2008, in Chicago, Illinois) was an American scientist and a pioneer in the field of nuclear medicine. Part of a University of Chicago team, he was the first to propose, in 1961, the use of the radioisotope technetium-99m to detect disease using Single Photon Emission Computed Tomography, a technique that is used an estimated 20 million times a year throughout the world. Beck also helped develop collimators for sharpening the images produced by gamma-ray scanners, and was referred to as 'Mr. Collimator' by colleagues.