75: Cost in $US of a tuning fork from Marie Kondo’s online store. Crystal included.
18: Number of fewer decibels produced by owls than by other birds when flying at similar speed.
5,500,000: Estimated number of Parisians exposed to road noise 55 dB or higher, the largest of any European city. London came in a distant second at roughly 2,647,600.
Originally published in the January 24, 2022, edition of the This Week in Sound email newsletter tinyletter.com/disquiet.