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    • Have days on Earth always been 24 hours?

      Have days on Earth always been 24 hours?

      Live Science via Yahoo News· 1 day ago

      But Earth's rotation hasn't always been so consistent. In fact, a long, long time ago, Earth's day was much shorter, said Sarah Millholland, an assistant...

    • Human intelligence is not computable - Nature Physics

      Nature· 4 days ago

      To define his dynamical system, Penrose imagined a phase space of states defined by the different sets of polygons. The system moves between these states using two different rules, one rule ...