I have a collection of surge protectors and the neon lights age and start flickering, but the time it takes for this to develop seems very variable. They add helium to the gas to help 'ignition' and I wonder if the helium is leaking out of microscopic cracks. Reason I think this may be the case is that "Super-leaks" have been the bane of scientists working with liquid helium since the early days" Loading… www.scientificamerican.com Weiterlesen...
