Uncategorized

  1. Plants

    Promiscuous orchids

    When pollinators aren't loyal to a single species of orchid, the plants maintain their species integrity by stymieing reproduction.

    By Rachel Ehrenberg
  2. Physics

    Black Hole of Light: Laser pulses create model of event horizon

    Physicists have created the optical analog of a black hole's surface of no return, a setup that could help test whether actual black holes glow.

    By Davide Castelvecchi

  3. 19932

    Regarding this article: A black hole is in a geometrical sense an end to the universe. If we picture the universe using Euclidean geometry, we can imagine going straight out forever. As we approach a black hole, the huge mass changes the geometry so that we also go on forever reaching the surface.