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  1. Humans

    To Leap or Not to Leap

    Scientists are debating whether to continue the practice of occasionally inserting leap seconds in order to keep official, atomic-based time in sync with time based on Earth's rotation.

    By Ron Cowen
  2. Humans

    From the April 11, 1936, issue

    Spring flowers, alcohol's effect on the liver, and tapping into brain waves.

    By Science News
  3. Humans

    Sculpting Life’s Machinery

    Sculptor Julian Voss-Andreae creates novel artworks inspired by the three-dimensional structures of proteins. His latest work, “Unravelling Collagen,” goes on display next month in the City of South San Francisco’s Orange Memorial Sculpture Park. Now based in Portland, Ore., Voss-Andreae had started out as a quantum physicist.