Back then you couldn't even look at the eardrum.

It's acoustic vibrations in the air, little waves of energy in the air that tickle our eardrum.

At other times, this bone may be removed with the tooth, or may be perforated during surgical extractions.

The sinus cavity is lined with a membrane called the Sniderian membrane, which may or may not be perforated.

Punched tape or perforated paper tape is a form of data storage, consisting of a long strip of paper in which holes are punched to store data.

John XXIII died of peritonitis caused by a perforated stomach at 19 49 local time on 3 June 1963 at the age of 81, ending a historic pontificate of four years and seven months.

And at that moment, the sun came out, and through this perforated screen, a pattern was cast over these bodies and they kind of faded into the rear, and we left the restaurant kind of feeling O.K. about stuff.

An older means of binding is to have the sheets stapled to the cardboard along the top of the tablet there is a line of perforated holes across every page just below the top edge from which any page may be torn off.

Somehow in tickling our eardrum that transmits energy down our hearing bones, which get converted to a fluid impulse inside the cochlea and then somehow converted into an electrical signal in our auditory nerves that somehow wind up in our brains as a perception of a song or a beautiful piece of music.