Uncategorized

  1. Chemistry

    The nitty-gritty of diamond polishing

    Researchers figure out what happens at the atomic scale when jewelers polish the hardest substance known.

    By Rachel Ehrenberg
  2. Humans

    Vitamin D targets increased

    A panel advises raising the dietary allowance for the nutrient, but some scientists say the new recommendations are still woefully low.

    By Nathan Seppa
  3. Humans

    World could heat up 4 degrees C in 50 years

    Immediate and substantial action to reduce emissions would be needed to meet climate negotiators' goal of holding warming to a 2 degree Celsius increase, a new package of scientific papers concludes.

    By Janet Raloff
  4. Life

    Getting dissed could be partly genetic

    In marmot social networks, victimization may be to some degree heritable.