As temperatures rise above thirty degrees Celsius (eighty-six degrees Fahrenheit), a pig deprived of clean mudholes will become desperate and begin to wallow in its feces and urine in order to avoid heat stroke. Pigs whose flanks are thoroughly smeared with mud continue to show peak heat-dissipating evaporation for more than twice as long as pigs whose flanks are merely soaked with water, and here also is the explanation for some of the pig’s dirty habits. Experiments show that the cooling effect of mud is superior to that of water.
#Tucked up like a kipper skin
By wallowing, it dissipates heat both by evaporation from its skin and by conduction through the cool ground. Here, then, is the explanation for the pig’s love of wallowing in mud. In order to keep cool, the pig wets itself down with moisture derived from external sources: In Food and Culture: A Reader (2013), Carole Counihan and Penny Van Esterik explain that it lacks an anatomical basis, as pigs can’t sweat-they have no functional sweat glands. The phrase to sweat like a pig is difficult to explain. Upon turning his eyes towards Cobbett, as he (Riley) was quitting the room, what should he see but his huge head just emerging from under the blankets and the superincumbent pillow, his two red chubby cheeks, to use a simile a la Cobbette , dripping with sweat like a pig!!! Until the last gleam of lightning, and the very last faint groan of the dying tempest, permitted him to depart. The earliest instance that I have found is from The Morning Post (London) of 10 th November 1824 during a boxing match “ between Ned Turner and Peace Inglis for one hundred pounds a-side”, one Shelton, who waited on Turner, said of Inglis:Ī variant is found in the Berkshire Chronicle (Reading, Berkshire) of 24 th October 1829 an article recounts that, in the middle of a night, the English pamphleteer and journalist William Cobbett (1763-1835) asked his friend, Riley, to keep him company during a thunderstorm Riley remained in Cobbett’s bedroom The phrase to sweat like a pig means to sweat profusely.
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