1. The problem statement, all variables and given/known data I need help on understanding a little part of the solution to this problem I've found on the internet. The problem 2. Relevant equations Surface tension and pressure equations 3. The attempt at a solution The solution My doubt: "The other component of the curvature is negligible because D>>d" What component? Did it mean the part in contact with the glass? Wouldn't the glass' weight interfeer the pressure? By the way, can someone demonstrate me the young's equation of pressure on curved surfaces? I would really appreciate the help, Thanks.