Magic Beer!

Efficient, super-fast and so cool it's almost magical in nature - this is the new beer machine that fills up plastic cups from the bottom up!

This scientific explanation is so simple it's not even classed as scientific... It's a small circular disk at the bottom of the cup which when you place the cup on the nozzle it pops up, the cup fills, and then the disk drops back down and covers the hole when you remove the cup and hand it over. These should be installed in all English pubs, it might speed up the bloody awful slow service we always get here!