What Animal Sounds Like Heavy Metal Dragging Across Floor
What Animal Sounds Like Heavy Metal Dragging Across Floor MasaC asks: Why exercise fingernails on a chalkboard make u.s. blench? Few sounds crusade humans to cringe more than nails across a chalkboard, a fork scraped on a plate, or a heavy metallic chair dragged beyond a tiled flooring. But what exactly is it near this sort of scraping noise that is so offensive to our brains that many fifty-fifty describe information technology as painful? Enter researchers D Halpern, James Hillenbrand, and Randolph Blake. In 1986 the trio of scientists conducted a written report trying to figure out what exactly in these sounds humans the world over hate so viscerally. In the report, published in the periodical Perception & Psychophysics , the researchers were hypothesizing that it was the high pitched sounds that were causing the issue, and thus isolated the sounds between low, middle, and high frequencies. Later pla