Mr Ang, question time...

i don't if this is a physics or chemistry question... But hopefully you would know how to answer....When you are drinking a gas drink, tilt our cup a little and you'll find tiny bubbles appearing and disappearing after a few seconds.... And if you continue to remain at that position (your cup tilted), you'll find that most of the bubbles would have disappeared and the drink does not have the gaseous taste anymore... Do you have any idea why this happens so....?