Calcium sulfate an unusual property: when mixed with water at normal (ambient) temperatures, it quickly reverts chemically to the preferred dihydrate form, while physically "setting" to form a rigid and relatively strong gypsum crystal lattice: This reaction is exothermic and is responsible for the ease with which gypsum can be cast into various shapes including sheets (for drywall), sticks (for blackboard chalk), and molds (to immobilize broken bones, or for metal casting). Mixed with polymers, it has been used as a bone repair cement. Small amounts of calcined gypsum are added to earth to create strong structures directly from cast earth, an
FADS Fun Sticks FADS Fun Sticks FADS Fun Sticks, formerly known as FAGS, and later FADS, are a brand of candy cigarette made by "Riviera Confectionery" (a division of "Fyna Foods Australia") in Victoria, Australia. First produced as FAGS (formerly used as Australian slang for cigarettes) in 1943, during the 1990s, the product was renamed FADS amidst concerns of it promoting smoking to children, as well as pejorative connotations of the word. During the 2000s, "Fun Sticks" was added to the name to further distance the product from its connection to cigarettes. The original candies were modelled after cigarettes, thin white sticks with