CESIUM-137: Now Destroying at an Event Near You

When you face this robot, your hope is almost the same as when you lose your phone at an amusement park that you left 3 hours ago.

Cesium-137 is an isotope of Cesium,  Cs, atomic no.55. it is an extremely soft material and close to liquid at room temperature. Cesium, or Caesium in IUPAC spelling, is a pale or shiny gold substance. Cesium-137 and Cesium-133 are the isotopes of Cesium used in atomic clocks. It was discovered in 1860 by Gustav Kirchhoff, using flame spectroscopy. It is classified as a hazardous material and reacts violently with water.