Solid chocolate was consumed by Aztecs before European arrival. Chocolate was initially sold as ground cocoa for drinking. First mass-produced chocolate bars appeared in late 18th century
Evaporator uses heat transfer to facilitate liquid-to-vapor phase transition. Circulating liquid is exposed to reduced pressure environment. Main components include tubes, fins, heat source, and vapor distillation
Milton S. Hershey established the Hershey Chocolate Company in 1894. Company initially focused on milk chocolate production after selling caramel business. First chocolate plant opened in Hershey, Pennsylvania in 1903. Introduced Hershey's Kiss in 1907, followed by other products like Mr. Goodbar
Fast food is mass-produced food designed for commercial resale with speed of service. Industry worth $570 billion globally in 2018. Uses pre-cooked, frozen or precooked ingredients served in packaging. Features drive-through service and standardized foodstuffs shipped from central locations
Syringe is a reciprocating pump with plunger fitting in cylindrical barrel. Used for injections, intravenous therapy, and measuring liquids. Modern medical syringes are plastic due to single-use safety. Hypodermic syringes prevent air embolism by tapping before injection
Penicillium is a green or blue mould fungus with 300 distinct species. Belongs to Ascomycota phylum and Trichocomaceae family. Contains chitin and glucose polysaccharide cell walls. Forms multicellular mycelium with thread-like hyphae