You sir, who likes to call other people idiots, seem to lack a fundamental understanding of the relationship between frequency and wavelength, as well as the basics of using an internet search engine.
The wavelength of a 14 kilohertz sound is 21413.747 meters, not 2.5 centimeters.
2.5 cm is the wavelenth of a signal with a frequency of 11.99169832 gigahertz.
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You sir, who likes to call other people idiots, seem to lack a fundamental understanding of the relationship between frequency and wavelength, as well as the basics of using an internet search engine.
The wavelength of a 14 kilohertz sound is 21413.747 meters, not 2.5 centimeters.
2.5 cm is the wavelenth of a signal with a frequency of 11.99169832 gigahertz.
Lufthansa has it. It's $29.95 per flight.
It IS a waste, an avoidable one. Another problem is, a lot of the newsprint isn't being recycled, it ends up in landfills.