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  • Description: instance
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    • Comparative tests

    • DuPont Exhibition at the New York Museum of Science & Industry
    • Demonstration snowing the elasticity of neoprene chloroprene rubber in comparison with natural rubber, at the former DuPont Exhibition as it appeared at the New York Museum of Science and Industry, Rockefeller Center. The machine stretched the two...
    • Precision dynamite

    • Blasting: Dynamite in Use
    • A typical instance of control over giant explosive forces was the damming of the Saguenay River in Canada for a hydroelectric project. The torrential rush of the current balked successive attempts to complete a cofferdam, the conventional method....
    • Precision dynamite

    • Blasting: Dynamite in Use
    • A typical instance of control over giant explosive forces was the damming of the Saguenay River in Canada for a hydroelectric project. The torrential rush of the current balked successive attempts to complete a cofferdam, the conventional method....
    • Comparative tests

    • DuPont Exhibition at the New York Museum of Science & Industry
    • Demonstration snowing the elasticity of neoprene chloroprene rubber in comparison with natural rubber, at the former DuPont Exhibition as it appeared at the New York Museum of Science and Industry, Rockefeller Center. The machine stretched the two...
    • Comparative tests

    • DuPont Exhibition at the New York Museum of Science & Industry
    • Demonstration snowing the elasticity of neoprene chloroprene rubber in comparison with natural rubber, at the former DuPont Exhibition as it appeared at the New York Museum of Science and Industry, Rockefeller Center. The machine stretched the two...

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