A Cornucopia of Experiment at RHIC
  I outline experimental results on heavy ion collisions at the Relativistic Heavy Ion Collider for a non-technical audience. This includes: elliptic flow and nearly ideal hydrodynamics; the suppression of hard particles and the ratio R_AA; and electromagnetic signals, including dileptons and direct photons. Especially puzzling is why the behavior of heavy (charm) quarks appears to be so similar to that of light quarks. 
Robert D. Pisarski