In a letter published in the journal Nature, Canadian nuclear physicist Harriet Brooks records her observations of a peculiar type of volatility demonstrated by an active deposit of radium immediately after its removal from the emanation. According to the letter, Harriet Brooks is the first person to observe the recoil of the atomic nucleus as nuclear particles are emitted during radioactive decay.
The Trans-Siberian Railway, one of the most ambitious engineering projects in history, is officially completed, linking European Russia through Siberia to the Far East with 4,607 miles through seven time zones. Its completion took thirteen years of work by thousand of workers, and its construction cost approximately 350 million rubles, all told.
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