What is religion, exactly? Hieratic monks singing their hymns? Fanatics performing human sacrifices? Old ladies praying the rosary? Pentec...

  Resource depletion, ecosystem disruption, population growth, and technological change are interacting with each other in a tsunami of chan...

This image by the Tuscan painter Piero della Francesca exudes such power that it may truly blow your mind. Apart from the mastery of the com...

  I just started a new blog titled " The Hydrogen Skeptics ." It is about the hydrogen economy and hydrogen as a fuel and it is a ...