"The back-and-forth vibration of an object creates the compression waves of sound. The motions of a loudspeaker cone, drumhead and guitar string are good examples of vibration that cause compression waves. This is different than the up and down or transverse motion of a water wave. (See General Wave Motion for more information.)"
In other words, dear upstairs neighbor, when your bed is moving back-and-forth and squeaking like a god damn whistle at 3.20 in the morning, EVERYONE CAN HEAR IT...especially those trying desperately to conquer jet lag who had finally fallen asleep but then couldn't fall back asleep for the next 3 hours (even though you were done in 2 minutes).
Have you considered felt tips for the bed against the wooden floorboards? Or maybe some WD-40?
At least you were quick.
1 comment:
Well, everyone in the building EXCEPT his lady is glad he's a 2-Minute-Man.
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