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    Atomic bombings of Hiroshima and Nagasaki, WW2  
The United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively, with the consent of the United Kingdom, as required by the Quebec Agreement. The two bombings killed b...
 
    Amedeo Avogadro, Italian Chemist  
In 1811 Amedeo Avogadro hypothesized that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. From this hypothesis it followed that relative molecular weights of any two gases are the same as the...
 
    Thomas Telford, Scottish Civil Engineer  
Thomas Telford was a Scottish civil engineer, architect and stonemason, and a noted road, bridge and canal builder. Apprenticeship as a stonemason laid the basis for Telford's move via Edinburgh to London, where he worked on Somerset House...
 
       
         
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