Frank Hagar Bigelow
Frank Hagar Bigelow was an American scientist and Episcopal priest.
Biography
Frank Hagar Bigelow was born in Concord, Massachusetts on August 28, 1851. His mother took an interest in astronomy, and her involvement caught his interest. Bigelow was educated at the primary and high school in Concord, in the Boston Latin School, Harvard College, and at the Episcopal Theological School in Cambridge, Massachusetts, and entered orders. For some years he was assistant astronomer in the Argentine National Observatory in Cordoba. This service was interrupted for his theological studies, and for the short time after entering orders he was a rector in Natick, Massachusetts.He married Mary Ellen Spalding on October 6, 1881.
Later he was professor of mathematics in Racine College, Wisconsin, assistant in the National Almanac office in Washington, D.C., and in 1891 he became professor of meteorology in the United States Weather Bureau in Washington. He was also an assistant rector of St. John's Church in Washington.
He died in Vienna, Austria on March 2, 1924.
Work
His name is especially associated with an instrument for the photographic record of the transit of stars and with some novel studies by which the solar corona, the aurora, and terrestrial magnetism are shown to be associated. The theories met with a favorable reception in scientific circles.Tornadic formula
In 1901 and later again in 1906, Bigelow, as chief of the United States Weather Bureau, calculated and published formulas to find the rotational speed of a tornado based on the height above sea level. In his study, Bigelow studied a waterspout off the coast of Cottage City, Massachusetts. Bigelow's formula went on to help Alfred Wegener, a leading geophysicist, atmospheric scientist, and an Arctic explorer, develop the hypothesis that tornadoes can form off of a gust front.| Height above sea level | Diameter of tube | Radial velocity outward | Rotational velocity | Vertical velocity upwards |