• Transparent glass tube containing neon gas glows orange when
  shocked by Van de Graaf (Be careful not to shock yourself!- tape the wand
  to an extension rod, like a meter stick, if you’re worried about getting shocked). This can be done with the any of the spectral tubes.
• Located in L01, section A-2, bottom shelf, in tub with other
  Van de Graaf accessories.
• Cute video about the atomic physics of neon signs. http://www.youtube.com/watch?v=zPDoBjlpxXY