Bothe, Walther

Bothe, Walther

▪ German physicist
in full  Walther Wilhelm Georg Bothe  
born Jan. 8, 1891, Oranienburg, Ger.
died Feb. 8, 1957, Heidelberg, W.Ger.

      German physicist who shared the Nobel Prize for Physics in 1954 with Max Born (Born, Max) for his invention of a new method of detecting subatomic particles (subatomic particle) and for other resulting discoveries.

      Bothe taught at the universities of Berlin (1920–31), Giessen (1931–34), and Heidelberg (1934–57). In 1925 he and Hans Geiger (Geiger, Hans) used two Geiger counters to gather data on the Compton effect—the dependence of the increase in the wavelength of a beam of X rays upon the angle through which the beam is scattered as a result of collision with electrons. Their experiments, which simultaneously measured the energies and directions of single photons and electrons emerging from individual collisions, refuted a statistical interpretation of the Compton effect and definitely established the particle nature of electromagnetic radiation.

      With the astronomer Werner Kolhörster, Bothe again applied this coincidence-counting method in 1929 and found that cosmic rays (cosmic ray) are not composed exclusively of gamma rays, as was previously believed. In 1930 Bothe discovered an unusual radiation emitted by beryllium when it is bombarded with alpha particles. This radiation was later identified by Sir James Chadwick as the neutron.

      During World War II Bothe was one of the leaders of German research on nuclear energy. He was responsible for the planning and building of Germany's first cyclotron, which was completed in 1943.

* * *

Universalium. 2010.

Look at other dictionaries:

  • Bothe , Walther Wilhelm Georg Franz — (1891–1957) German atomic physicist Bothe, who was born in Oranienburg, Germany, studied at the University of Berlin under Max Planck and received his PhD in 1914. For the next few years, he was a prisoner of war in Russia but, on his return to… …   Scientists

  • Walther Wilhelm Georg Bothe — Walther Bothe Walther Bothe Walther Wilhelm Georg Bothe, né à Oranienburg le 8 janvier 1891 et mort à Heidelberg le 8 février 1957, était un physicien, mathématicien et chimiste allemand. Il apporta des contributions… …   Wikipédia en Français

  • Walther Bothe — Walther Wilhelm Georg Bothe (8 janvier 1891 à Oranienburg, Allemagne 8 février 1957 à Heidelberg, Allemagne) était un physicien, mathématicien et chimiste allemand …   Wikipédia en Français

  • Bothe — Walther Wilhelm Georg Franz …   Scientists

  • Walther Bothe — Infobox Scientist box width = 300px name = Walther Bothe imagesize = 180px caption = Walther Bothe birth date = January 8, 1891 birth place = Oranienburg, Germany death date = February 8, 1957 death place = Heidelberg, Germany nationality =… …   Wikipedia

  • Walther Bothe — Retrato de 1954. Walther Wilhelm Georg Bothe (8 de enero de 1891 8 de febrero de 1957) fue un físico, matemático y químico alemán. Recibió el premio Nobel de Física en 1954 (junto con Max Born) por la invención del método de las coincidencias …   Wikipedia Español

  • Walther Bothe — Walther Bothe, 1954 Walther Wilhelm Georg Bothe (* 8. Januar 1891 in Oranienburg; † 8. Februar 1957 in Heidelberg) war ein deutscher Physiker. Seine Arbeiten waren ein wichtiger Beitrag zur Begründung der modernen Kernphysik. Für die Entwicklung… …   Deutsch Wikipedia

  • Bothe — ist der Familienname folgender Personen: Cord Bothe (1920–1987), deutscher Politiker (CDU) Detlef Bothe (* 1965), deutscher Schauspieler, Regisseur, Produzent Drehbuchautor und Kameramann Friedrich Bothe (1869–1952), deutscher Lehrer und… …   Deutsch Wikipedia

  • Bothe — (izg. bóte), Walther (1891 1957) DEFINICIJA njemački fizičar, za novu metodu otkrivanja subatomskih čestica Nobelova nagrada 1954 (sa S. M. Bornom) …   Hrvatski jezični portal

  • Bothe — biographical name Walther Wilhelm Georg 1891 1957 German physicist …   New Collegiate Dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.