Auditoriums
The IHS auditorium is used for many events, including the talent show which is in a few days. This will involve a lot of singing and music. The auditorium is designed so that sound waves, which are mechanical and longitudinal, meaning that they require a medium to travel through and move parallel to wave velocity, only travel to people's ears. Normally, sound waves bounce off of the walls, which is where echoes come from, but auditoriums are set up to keep them from doing that.
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