I walked into a room and I thought I had run into another one of those infernal near-ultrasound noisemakers... But it was a CRT TV.pic.twitter.com/fOJTAIDLdD
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Around here those near ultrasound noisemakers are all over the place and it's awful. I wanna know their actual name. I think it's too scan for weapons/substances. it is especially frustrating when other people don't hear it. I use an android app to prove it to people.
They are not scanners. The Japanese ones are "Neko no sasakayi" (cat's whisper) and are sold as rodent repellers.
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Oh really. Yea I live in Tokyo and every station has them. Do you know what the bird sounds are for, that are played at night at every station?
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https://www.excite.co.jp/news/article/E1236339391191/ … Apparently it's an accessibility feature used to guide visually impaired passengers from the platform to the exit. TIL
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