Find number abc
If acc90 - 5ccc3 = b00ba find number abc. Multiple solutions may exist.Correct answers: 73
The first user who solved this task is Melanie Long.
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Pendulum clock patentIn 1657, the first pendulum clock was patented by its inventor, Christiaan Huygens. Although others may have worked in this field before him, Huygens made major advances in building a practical clock. He needed time accuracy for his astronomical measurements. |