Liquid nitrogen and ping pong

So, I haven’t posted for a very long time and that’s a shame, but here is something to make a bang! If you pour liquid nitrogen into a plastic bottle it will start to turn into a gas because it heats up in room temperature. This looks pretty cool as it is – like a…

It’s a gas!

Nitrogen is used in Guinness to make a smoother drink because the bubbles are smaller than carbon dioxide. It is also used in aeroplane tyres because it can withstand the pressure of contact with the ground where other gases would make the tyres burst. Pretty cool stuff to do with the most abundant gas in…