Remove 6 letters from this seq...
Remove 6 letters from this sequence (USAOELJECTIOJDN) to reveal a familiar English word.Correct answers: 44
The first user who solved this task is Djordje Timotijevic.
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Pocket watch patentIn 1675, Christian Huygens patented a pocket watch. Huygens was a Dutch astronomer an physicist who establishing the wave theory of light and making astronomical discoveries. He also patented the first pendulum clock in 1656, which he has developed to meet his need for exact time measurement while observing the heavens. In 1673, he studied the relation of the length of a pendulum to its period of osciallation.« |