I always have trouble pouring a beer without getting a large foamy head. So for you beer lovers out there who have this problem there is a new high tech beverage dispenser that will help you pour a clean glass every time.
At first, the core idea of this unique beverage dispenser might seem crazy: You use cups that have a hole in the bottom. But around the hole is a metallic ring on the cup. A round, bendable magnet - exactly like a refrigerator magnet and about the size of a silver dollar (which they claim is too big to accidentally swallow) - covers the hole. You place the cup over one of the valves, which pushes the magnet up. That causes beer to shoot up into cup until it's filled, and the valve automatically shuts off. When you pull the cup off, the magnet seals the hole with no leakage.
Link
http://www.neatorama.com/2011/01/21/how-the-bottoms-up-beer-dispenser-works/
Is it really that hard to search "beer bottom" before posting? Or **gasp** maybe just read the site so you know what's been on it.
http://www.neatorama.com/2010/12/24/magical-beer-dispenser-pours-beer-into-cups-from-the-bottom/
and how it works
http://www.neatorama.com/2011/01/21/how-the-bottoms-up-beer-dispenser-works/
Hmmmmmmmm.......
Perfect timing for the era that we live in...
that holds true for most cups. hahaha. j/k