Why does wine cry?

Invoking the interaction of differing surface tensions, Dan Quinn answers the question “Why Does Wine Cry”:

(HT Aatish Bhatia)

BONUS (unrelated, except in that it does involve both wine and crying, and someone who is interested in physics): Video of 22-year-old physics student Daniel Murphy from Dublin crying wine:

BONUS (unrelated): Bobbejaan performs the song “I’m crying in my beer”: