Liquid nitrogen evaporates, and can cause violent oxidation of organic material. Ingestion of liquid nitrogen can cause severe internal damage, due to freezing of the tissues which come in contact with it and to the volume of gaseous nitrogen evolved as the liquid is warmed by body heat. In 1997, a physics student demonstrating the Leidenfrost effect by holding liquid nitrogen in his mouth accidentally swallowed the substance, resulting in near-fatal injuries. This was apparently the first case in medical literature of liquid nitrogen ingestion. In 2012, a young woman in England had her stomach removed after ingesting a cocktail made with
Cornetto (ice cream) Cornetto (ice cream) Cornetto (), meaning "little horn" in Italian, is a branded frozen dessert cone manufactured by Unilever and sold under various international subsidiary names, including Algida in Italy, Wall's in the UK, HB in Ireland, Frigo in Spain, Kwality Wall's in India, and others. Several variations of the product exist, ranging from milk-based ice cream to vegetable fat-based dessert. For a long time, the idea of selling frozen ice-cream cones had been impractical, as the ice cream would soak into the cone during the manufacturing process and make it soggy and unpalatable when served. In 1959, Spica, an