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
Ice cream cake from biscuits and cream. Victorian era desserts called bombes consisted of ice cream and fruit in decorative molds. Sometimes these desserts were lined with cake or biscuits. Ice cream cake recipes dating to the 1870s have also been found. Ice cream cakes are popular in the U.S. Carvel has a history of themed cakes advertised on television including Fudgie the Whale and Cookie Puss. Baskin-Robbins, Dairy Queen, Friendly's, Cold Stone Creamery, and other retailers also sell ice cream cakes. It is common for ice cream cake to be used as a birthday cake during birthday celebrations. At times, when ice