Why Do Some Beer Bubbles Appear to Defy Physics? Science Finally Has an Answer

Physics is a topic best not contemplated under the influence of alcohol. If the room looks like it's spinning or a single image starts to look double, you can be sure that what you're seeing is not the way the world really is. And yet even before your very first sip, there's one screwy bit of physics that's hard to deny: the bubbles in your glass of stout appear to be sinking.