Adolfo Bartoli

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Adolfo Bartoli (born March 19, 1851 in Firenze , † July 18, 1896 in Pavia ) was an Italian physicist who was one of the first to theoretically predict the existence of radiation pressure .

Life

Bartoli studied physics and mathematics at the University of Pisa until 1874. He was Professor of Physics at the following institutions: The Technical Institute in Arezzo (1876), the University of Sassari (1878), the Technical Institute of Firenze (1879), the University of Catania (1886-1893), and the University of Pavia (1893-1896).

James Clerk Maxwell derived in 1874 from Maxwell's equations in the context of electrodynamics that electromagnetic waves can exert pressure on bodies.

In 1876, Bartoli derived the existence of radiation pressure from thermodynamic considerations. He argued that by reflecting the light from a moving mirror, heat and energy could be transferred from a cold body to a hot one due to the Doppler effect. To avoid this violation of the second law of thermodynamics, it is necessary that the light exerts pressure on the mirror. The radiation pressure was therefore also called Maxwell-Bartolian pressure after its discoverers.

Radiation pressure later played a major role in Albert Einstein's considerations , who stayed in Pavia around 1895 at the time when Bartoli held the chair in physics there, in connection with the equivalence of mass and energy and the photoelectric effect . However, whether Bartoli had a direct influence on Einstein is unknown.

Web links

Individual evidence

  1. ↑ Maxwell, JC: A Treatise on electricity and magnetism, Vol. 2, § 792 . Macmillan & Co., London 1873, p. 391 ( bnf.fr ).
  2. ↑ Bartoli, A .: Il calorico raggiante e il secondo principio di termodynamica . In: Nuovo Cimento . tape 15 , 1884, p. 196-202 ( unipv.it [PDF]).
personal data
SURNAME Bartoli, Adolfo
BRIEF DESCRIPTION Italian physicist
DATE OF BIRTH March 19, 1851
PLACE OF BIRTH Firenze
DATE OF DEATH July 18, 1896
Place of death Pavia