Blackboard Scratching portal is a digital platform for online teaching, knowledge sharing, learning and community building. We are here to answer all your questions about Blackboard Scratching login.Below given are a series of official Blackboard Scratching sites below that will help you clear your doubts about the login.
https://www.newscientist.com/article/2123018-the-feeling-you-get-when-nails-scratch-a-blackboard-has-a-name/
https://en.wikipedia.org/wiki/Chalkboard_scraping
https://www.livescience.com/57106-why-fingernails-on-chalkboard-hurts.html
https://www.bbc.co.uk/newsbeat/article/39141780/theres-now-a-word-for-nails-on-a-blackboard---but-its-not-in-english
https://www.webmd.com/balance/news/20111104/why-fingernails-on-a-chalkboard-irks-you
https://adaa.org/learn-from-us/from-the-experts/blog-posts/consumer/misophonia-nails-chalkboard
https://www.sciencefocus.com/the-human-body/why-does-the-sound-of-nails-scratching-a-chalkboard-make-me-cringe/
https://recordsetter.com/world-record/fingernail-scratch-across-chalkboard/11005
https://www.dailymail.co.uk/sciencetech/article-4276132/Grima-hear-nails-scratch-blackboard.html
https://www.popsci.com/science/article/2013-05/fyi-why-do-we-hate-sound-nails-chalkboard/
https://tvtropes.org/pmwiki/pmwiki.php/Main/NailsOnABlackboard
https://www.amazon.com/Fingernails-Scratching-On-Blackboard/dp/B002OV74K2