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https://www.bbc.co.uk/news/newsbeat-39141780#:~:text=World%20News%20TV-,There's%20now%20a%20word%20for%20nails%20on%20a,but%20it's%20not%20in%20English&text=You%20might%20not%20have%20heard,a%20knife%20scratching%20a%20plate.
https://en.wikipedia.org/wiki/Chalkboard_scraping
https://www.livescience.com/57106-why-fingernails-on-chalkboard-hurts.html
https://www.nbcnews.com/healthmain/screech-sounds-which-are-worse-nails-chalkboard-1C6541925
https://adaa.org/learn-from-us/from-the-experts/blog-posts/consumer/misophonia-nails-chalkboard
https://tvtropes.org/pmwiki/pmwiki.php/Main/NailsOnABlackboard
https://www.npr.org/2011/11/09/142184389/why-nails-on-a-chalkboard-drives-us-crazy
https://abucketfullofscience.wordpress.com/2017/03/15/fingernails-on-a-chalkboard-if-you-shudder-heres-why/
https://english.stackexchange.com/questions/52058/what-is-the-sound-of-nails-scratching-a-chalkboard-called
https://www.wired.com/2011/11/chalk-board-fingernail-sound/
https://physics.stackexchange.com/questions/270085/what-frequency-is-the-scratching-of-finger-nails-on-a-blackboard
https://www.newscientist.com/article/2123018-the-feeling-you-get-when-nails-scratch-a-blackboard-has-a-name/