Student Education Repository (மாணவர்கள் கல்விக் களஞ்சியம்): Today (August 22, 1834) is the Birthday of Samuel Pierpont Langley, who first designed the bolometer.

Saturday, August 21, 2021

Today (August 22, 1834) is the Birthday of Samuel Pierpont Langley, who first designed the bolometer.

Today (August 22, 1834) is the Birthday of Samuel Pierpont Langley, who first designed the bolometer.

Samuel Pierpont Langley was born on August 22, 1834, in Roxbury, Massachusetts. He was educated at the Latin School with Bose and at the English High School with Bose. After working as an assistant at the Langley Award Observatory, he went on to become a professor of mathematics at the American Academy of Navajo. In fact, he went there to retrieve and operate the small observatory of the academy. In 1867 he became director of the Allegheny Observatory. He is also a Professor of Astronomy at the Western University of Pennsylvania. It is now known as the University of Pittsburgh. He became the third secretary of the Smithsonian Institution in 1887 but remained in office until 1891.

Langley was the first to design a bolometer. It is initially used to measure infrared radiation. The Bolometer helped scientists detect a temperature change of less than 1 / 100,000 degrees Celsius. This laid the foundation for measuring the amount of solar energy on Earth. He published an article in 1881 entitled "The Bolometer and Radioactivity". He made one of the first attempts to measure the surface temperature of the moon. His measurement of the interference of infrared radiation by carbon dioxide in the Earth's atmosphere was used in 1896 by Svante Arrhenius. Carbon dioxide levels will double in the future.

Langley is also an aeronautical expert. He was the founder of the Smithsonian Astronomical Observatory. Samuel Pierpont Langley, the American physicist who first designed the bolometer, passed away on February 27, 1906, at the age of 71, in Aiken, South Carolina.

Source By: Wikipedia

Information: Ramesh, Assistant Professor of Physics, Nehru Memorial College, Puthanampatti, Trichy.

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