Bubbles in Beer !

dammmnnn....

Finally an explanation for beer froth :

Beer drinkers will know that timeless question !  ::lol::

Why do Bubbles in stouts and Beer SINK ? 

It may be simply down to the Glass 

Calculations show that a glass shaped "upside-down" would exhibit the opposite effect on bubbles

               

Now a study on the Arxiv server  (click )

reports simulations and experiments showing the standard glass' shape is responsible.

one of the world great mystries solved , man has pondered this question since ancient times