Uncategorized

  1. Health & Medicine

    Heart to heart

    Successful heart transplant experiment in infants draws attention to debate on defining death of organ donors.

    By Ashley Yeager
  2. Physics

    Invisible hand, and a quick one at that

    God doesn’t play dice, Einstein said in his critique of quantum theory. But any alternative theory to quantum mechanics would require certain quantum events to influence each other 10,000 times faster than the speed of light, physicists have shown.

    By Davide Castelvecchi
  3. Earth

    Firm evidence that Earth’s core is solid

    Faint yet distinct ground motions recorded by a large network of seismic instruments in Japan in early 2006 are the strongest, most direct evidence that Earth’s inner core is solid.