|
E. Ruth Hedeman
Emma Ruth Hedeman (1910 – 2006) was an American solar astronomer at McMath-Hulbert Solar Observatory in Michigan. Biography Known as Ruth, she was born in Baltimore, Maryland on November 25, 1910 to Emma Elizabeth Koppelman and Walter Rider Hedeman, and raised in Baltimore's Hamilton neighborhood. She graduated from Eastern High School in Baltimore in 1928, earned her B.A. from Goucher College in Baltimore in 1931 and her first master's degree (M.A.) in mathematics from Duke University in 1936. Her thesis there was ''Young-Stieljes integrals and Volterra-Stieljes integral equations''. Hedeman's professional career began as a teacher of elementary math, first at Goucher and then at Eastern High School. But with the start of World War II, she joined the U. S. Navy WAVES (Women Accepted for Volunteer Emergency Service) in 1942. She received training in atmospheric science and meteorology and then served as aerological officer at a military facility, the Naval Air Station i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore
Baltimore ( , locally: or ) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore was designated an independent city by the Constitution of Maryland in 1851, and today is the most populous independent city in the United States. As of 2021, the population of the Baltimore metropolitan area was estimated to be 2,838,327, making it the 20th largest metropolitan area in the country. Baltimore is located about north northeast of Washington, D.C., making it a principal city in the Washington–Baltimore combined statistical area (CSA), the third-largest CSA in the nation, with a 2021 estimated population of 9,946,526. Prior to European colonization, the Baltimore region was used as hunting grounds by the Susquehannock Native Americans, who were primarily settled further northwest than where the city was later built. Colonist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
