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Light pressure was discovered by the prominent Russian scientist Lebedev at the end of the last century.

 

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By the end of the 19th century the whole territory of the globe had been divided by the capitalist states.

 

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1. Further successes have been registered by the democratic peace-loving forces of the world. 2. The reaction of splitting the nucleus of lithium into two alpha particles under the bombardment with artificially accelerated protons was carried out by Sinelnikov and Valter in the USSR in 1932 and by Cockroft and Walton in England. 3. This hangar houses planes and gliders. 4. The workers machine tools before heating them. 5. The flags flag in calm weather. 6. This hall seats about 2,000 people. 7. Running exercises leg muscles.

 





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