Bang Goes the Theory Season 5 Episode 7 Helium Shortage, Radiation and Airport Security 2011
7.8/10 by 5 users
Dallas investigates a potential global helium shortage, Dr Yan tests shoppers on how much they know about radiation, and Liz tries out the new airport security technology that can see beneath your clothes.
- Released: 2011-09-26
- Runtime: 30 minutes
- Genre: Family, Documentary
- Stars:
- Director:
