The Biographical Memoir Of Samuel Pierpont Langley, 1834-1906 is a book written by Charles Doolittle Walcott and published in 1912. It is a detailed account of the life and achievements of Samuel Pierpont Langley, a renowned American astronomer, physicist, and aviation pioneer. The book covers Langley's early life, education, and his significant contributions to the fields of astronomy and physics, including his work on solar radiation and the measurement...