The gas inside fhe ball is charged by a sfron9
elecfric field, making plasma. Plasma is a sfate of
maffer like solids, liquids and gaSes and is found
narurally in lighfning.
Elecfric charges flow along the conductive plasma
and spread ouf around fhe inner surface of the
glass. When you fouch The glass you rmake a Point
for fhe charges fo be affracted Towards.
