Determine the value of the number ABCD
Determine the value of the number ABCDCorrect answers: 113
The first user who solved this task is Djordje Timotijevic.
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Ascanio SobreroDied 26 May 1888 at age 75 (born 12 Oct 1812). Italian chemist who discovered the explosive compound nitroglycerin (1847) by adding glycerine slowly to mixture of nitric and sulphuric acids. When he discovered the explosive power of even a single drop in a test tube, he named the new compound pyroglycerin. Sobrero was horrified by the destructive potential of his discovery, and made no effort to develop that power himself, though it became known as nitroglycerin, or blasting oil. Two decades later, Nobel combined nitroglycerine with diatomaceous earth, making it safer to handle, but just as useful for blasting rock for construction and mining. Nobel made a fortune as the inventor and manufacturer of dynamite. |