Cracker question because helium balloons are actually a pretty controversial topic. Some people argue that they are harmful to the environment because on returning to Earth, animals mistake them ...

This alpha-particle is actually just the heart of a helium atom - its nucleus ... and for more serious purposes, such as for weather balloons, helium is used in other applications which depend on its ...

Chef Grant Achatz serves up some very unusual dishes, and one of the most popular is an edible helium balloon. Customers are served the balloons and encouraged to suck in the helium before eating it.