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Proceedings of the National Academy of Sciences, Volume 122, Issue 36, September 2025. <br/>SignificanceThe simultaneous presentation of two acoustic tones can cause us to perceive additional tones at integer-multiple combinations of the two frequencies. These distortion products are ubiquitous to vertebrate ears and have even been measured in …
:max_bytes(150000):strip_icc()/Health-recall-roundup-f5c8baabfa264233a0e2db6b03da1c3a.png?w=390&resize=390,220&ssl=1 "Cleaning Solution in Milk, Metal Fragments in Shredded Cheese, and 3 More December Food Recalls You Need to Know")