Residents near airports can tell you a thing or two about it – the deafening noise when planes take off or land whereby you can hardly hear a word outdoors. Although newer planes have already become somewhat quieter in recent years, at around 120 decibels during take-off and landing they are still loud enough to cause long-term damage to one’s hearing. For comparison: the crying of a baby peaks at 80 decibels, a jackhammer at 100, a rocket launch at 140 decibels.
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