ELI5 Helium - is there really a global shortage?

Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcast by ELI5 Explain Like I'm Five Podcast

How can "superfluid" helium flow against gravity and climb up the walls of a container? Why was helium discovered on the Sun nearly thirty years before it was found on Earth? How does a gas used for party balloons play a...View more