Uncategorized

  1. Math

    Seeing in four dimensions

    Mathematicians create videos that help in visualizing four-dimensional objects.

    By Julie Rehmeyer
  2. Chemistry

    Turning CO2 into chalk and sand

    Removing carbon dioxide from smokestacks and storing it permanently is one of the possible solutions to global warming, but remains expensive to do. A new technique could make carbon sequestration economical on a large scale, while producing useful materials on the side.

    By Davide Castelvecchi
  3. Psychology

    World of hurt

    Treatments shown to diminish psychological problems in traumatized youngsters often don’t get used, an exhaustive research review concludes.

    By Bruce Bower
  4. Health & Medicine

    How mice smell fear

    Mice may use a cluster of neurons known as the Grueneberg ganglion to detect alarm pheromones.