The form on the outer part of ear (which we see exterior The top) is like a funnel. The outer Element of ear known as 'pinna' and it really is attached to about 2 to 3 centimetre prolonged passage named 'ear canal'. Bigger the amplitude of vibrations, louder the sound https://vibration-isolator-spring15791.ltfblog.com/28086245/5-simple-techniques-for-what-is-isolator-and-its-function