The study of waves effect everyone. If no one studied waves there would be no internet, phones, RC toys. Planes wouldn't exist because they would have to fly close to the ground in order to navigate. Human kind would have never broken the sound barrier in flight, nobody would be sent to space. Without the study of waves humans kind would be reduced to living in small towns. Learning only what that small town knew and never going anywhere. Living on meat cooked on fire and surviving on the heat of fire in the winter. Making your own clothes. Everyone would be farmers of hunters.
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