I think Helium has to win it for me. Not only does it keep our balloons floating nut if you cool it down really really low it becomes a liquid with very strange properties. It eventually becomes a super fluid which allows us to see the usually hidden quantum properties of matter. The liquid Helium will go straight through solid barriers, and even start to ‘climb’ up the walls of its container. It is also very useful for our experiments where we need to cool our satellite instruments to really low temperatures to simulate what it is like in space.
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Colm commented on :
I think Helium has to win it for me. Not only does it keep our balloons floating nut if you cool it down really really low it becomes a liquid with very strange properties. It eventually becomes a super fluid which allows us to see the usually hidden quantum properties of matter. The liquid Helium will go straight through solid barriers, and even start to ‘climb’ up the walls of its container. It is also very useful for our experiments where we need to cool our satellite instruments to really low temperatures to simulate what it is like in space.