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  1. Humans

    From the April 9, 1938, issue

    Mining limestone to make steel, a bright little bulb, setting a new record on the sun and finding buried thermos bottles.

    By Science News
  2. Chemistry

    Einstein’s invisible hand: Is relativity making metal act like a noble gas?

    Element 114 should be chemically similar to lead, but controversial experimental data shows it behaves more like a noble gas, potentially subverting the periodic table's structure.

    By Davide Castelvecchi
  3. Health & Medicine

    Stem Cell Snag: Implanted cells may show signs of Parkinson’s

    After as many as 16 years, nerve cells transplanted into the brains of Parkinson's patients still thrive, but some show signs of acquiring the disease.