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Key dates in science

1888Heinrich Hertz, a German physicist, demonstrated the existence of radio waves.

1895Moving pictures were first shown in public in France.

1895X-rays were discovered by the German physicist Wilhelm Rontgen, and the first X-ray photograph was taken.

1895The Italian physicist Guglielmo Marconi developed and demonstrated radio transmission.

1896Antoine Becquerel, a French physicist, discovered radioactivity.

 

LESSON 13

Grammar. , ..

Text 13A. Lasers.

Text 13B. Optical Technology.

Topic. Developing of Telecommunications.


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  2. Key dates in science
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