When boiling water, I've noticed that bubbles will appear to grow at the bottom of the glass for a period of time and then rise. I've read that bubbles form from nucleation centers but I don't know the specifics of the nucleation dynamics. Is there a possible scenario where the bubbles, while still appearing to adhere to the bottom of the glass, are in an equilibrium where the bottom par of the bubble is being formed by water evaporating into gas, but at the top of the bubble, which might be slightly cooler, the gas is redissolving into liquid phase? If the two rates are the same then the bubble would appear stationary. At some point the water heats up enough to have rate of evaporation greater than dissolving throughout the entire bulk of the liquid and the bubble will survive its transit to the top of the liquid. I think that falling drops experience a dynamic that is th opposite of this.
A couple other thoughts that I've considered:
I know that boiling occurs when the vapor pressure of water is greater than atmospheric pressure. I believe that this condition is achieved even when the bubble is stationary since the bubble is displacing the surrounding bulk water and air.
I think that carbonated beverages can have bubbles stick to the side of a glass, but I suspect that the reason for this is different but i don't have an intuition about why carbon dioxide bubbles in a cold drink might stick, since the beverage is cold.