Презентация по английскому языку на тему "Великие ученые"

• 1 слайд

  Great Scientists
  Великие ученые
  

• 2 слайд

  Dmitri Ivanovich Mendeleev.Russian; 8 February 1834 – 2 February 1907
  a Russian chemist and inventor. He is best known for formulating the Periodic Law and creating a farsighted version of the periodic table of elements. He used the Periodic Law not only to correct the then-accepted properties of some known elements, such as the valence and atomic weight of uranium, but also to predict the properties of three elements that were yet to be discovered.
  
  

• 3 слайд

  He was a researcher in the fields of hydrodynamics, meteorology, geology, certain branches of chemical technology (explosives, petroleum, and fuels, for example) and other disciplines adjacent to chemistry and physics, a thorough expert of chemical industry and industry in general, and an original thinker in the field of economy." Mendeleev was one of the founders, in 1869, of the Russian Chemical Society.
  

• 4 слайд

  Heinrich Rudolf Hertz German: 22 February 1857 – 1 January 1894
  a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell's equations of electromagnetism. The unit of frequency, cycle per second, was named the "hertz" in his honor.
  
  

• 5 слайд

  Another achievements: he demonstrated that cathode rays could penetrate very thin metal foil (such as aluminium), helped establish the photoelectric effect (which was later explained by Albert Einstein), published two articles on what was to become known as the field of contact mechanics, which proved to be an important basis for later theories in the field.
  
  

• 6 слайд

  Michael Faraday; (22 September 1791 – 25 August 1867)
  an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction, diamagnetism and electrolysis.
  
  

• 7 слайд

  Although Faraday received little formal education, he was one of the most influential scientists in history. It was by his research on the magnetic field around a conductor carrying a direct current that Faraday established the basis for the concept of the electromagnetic field in physics. Faraday also established that magnetism could affect rays of light and that there was an underlying relationship between the two phenomena. He similarly discovered the principles of electromagnetic induction, diamagnetism, and the laws of electrolysis. His inventions of electromagnetic rotary devices formed the foundation of electric motor technology, and it was largely due to his efforts that electricity became practical for use in technology
  

• 8 слайд

  TASK: Answer the questions
  Who was D.I. Mendeleev?
  What is he known for all over the world?
  Who was Heinrich Hertz?
  What did he prove?
  Who was Michel Faraday?
  Name his main discoveries.
  Критерии оценки:
  «5» – 6 ответов;
  «4» – 5 ответов;
  «3» – 4 ответа.