Student Education Repository (மாணவர்கள் கல்விக் களஞ்சியம்): Today (August 25, 1908) is the Memorial Day of Henri Becquerel, the Nobel Laureate in discovered Radiation.

Tuesday, August 24, 2021

Today (August 25, 1908) is the Memorial Day of Henri Becquerel, the Nobel Laureate in discovered Radiation.

Today (August 25, 1908) is the Memorial Day of Henri Becquerel, the Nobel Laureate in the discovery of Radiation.

Antoine Henri Becquerel was born on December 15, 1852, in Paris. His family has four generations of scientists, including him and his son Sean. In 1892 he became head of the physics department at the National Arsenal of France, and later in 1894 became an engineer in the Department of Bridges and Highways. Becquerel accidentally discovered radiation in 1896 while studying the phosphorescence of uranium salts. In an experiment exploring the findings of Willem Rontgen, Becquerel placed the luminous substance potassium uranyl sulfur on photographic plates, wrapping the plates around black paper and exposing them to sunlight. The principle of illumination is the research of some of the objects that were left to warm in the sun and then glow in the dark. In his scientific study, he discovered that pitch-blend, a substance containing uranium, contained an element other than uranium. However, before the experiment began, he noticed that the photographs were completely exposed.

Radioactivity ~ Henri Becquerel, Marie & Pierre Curie on Make a GIF

He discovered that uranium and its salts emit invisible radiation and that they penetrate through paper, wood, glass, etc., and affect the photosphere. He was awarded the Nobel Prize in 1903 along with Marie Curie and Pierre Curie for their discovery of radiation. The SI system of radiation is named Becker (Bq) in his memory. In 1908 Becker was appointed Permanent Secretary of the Academy of Sciences. He has received the Rumford Prize (1900), the Helmholtz Prize (1901), the Nobel Prize in Physics (1903), and the Barnard Prize (1905). Henry Becquerel, Nobel Laureate in Radiology, died in France on August 25, 1908, at the age of 55.

Source By: Wikipedia

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

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