Python Lists. Python has a great built-in list type named list. List literals are written within square brackets [ ]. Lists work similarly to strings -- use the len() function and square brackets [ ] to access data, with the first element at index 0.ython Lists. Python has a great built-in list type named list. List literals are written within square brackets [ ]. Lists work similarly to strings -- use the len() function and square brackets [ ] to access data, with the first element at index 0.
Normally, swallowing causes a little click or popping sound in the ear. This occurs because a small bubble of air has entered the middle ear, up from the back of the nose. It passes through the Eustachian tube, a membrane-lined tube about the size of a pencil lead that connects the back of the nose with the middle ear.
Ear popping is caused by pressure differences between the inside and outside of the eardrum. Swallowing or yawning may help to relieve the pressure Ear popping is caused by pressure differences between the inside and outside of the eardrum. Air pressure in the middle ear usually is the same as the air pressure outside the body. Most people are familiar with the pressure changes (relieved by ear popping) that occur when you fly, travel to high altitudes, or dive underwater. Swallowing or yawning helps relieve the pressure by opening the Eustachian tube, which connects the middle ear to the back of the nose and upper throat. Opening the tube allows air to flow into or out of the middle ear and equalizes pressure on the eardrum. While annoying, this problem usually isnât serious.