where does the purr come from in a cat
Purr One hypothesis, backed by electromyographic studies, is that cats produce the purring noise by using the vocal folds or the muscles of the larynx to alternately dilate and constrict the glottis rapidly, causing air vibrations during inhalation and exhalation.[2] Combined with the steady inhalation and exhalation of air as the cat breathes, a purring noise is produced with strong harmonics.[3] Despite competition from various contenders, the record for the loudest purring cat continues to be held by Smokey, owned by Ruth Adams (UK). On 25 March 2011, Smokey purred at 67.7Â dB.[4]
Hocus Pocus (1993 film) In the 1994 TV documentary Hocus Pocus: Begin the Magic, and on the film's Blu-ray release, producer David Kirschner said he came up with the idea for the film one night. He and his young daughter were sitting outside and his neighbor's black cat strayed by. Kirschner invented a tale of how the cat was once a boy who was changed into a feline three hundred years ago by three witches.