melting duct
21Channel Tunnel — Map of the Channel Tunnel Overview Location English Channel (Strait of Dover) Coordinates Folkestone …
22Air preheater — An air preheater or air heater is a general term to describe any device designed to heat air before another process (for example, combustion in a boiler) with the primary objective of increasing the thermal efficiency of the process. They may be… …
23Acoustic cleaning — is used wherever there is a build up of dry materials and particulates which need to be cleaned regularly to ensure maximum efficiency and minimize maintenance and down time. An acoustic cleaner works by generating powerful sound waves which will …
24MythBusters (2008 season) — Country of origin Australia United States No. of episodes 20 (includes 8 specials) Broadcast Original channel Discovery Channel …
25Asbestos — For other uses, see Asbestos (disambiguation). Fibrous asbestos on muscovite …
26Ozone — For other uses, see Ozone (disambiguation). Ozone …
27Turbine — A turbine is a rotary engine that extracts energy from a fluid flow. Claude Burdin (1788 1873) coined the term from the Latin turbo , or vortex, during an 1828 engineering competition. Benoit Fourneyron (1802 1867), a student of Claude Burdin,… …
28Telstra — Corporation Limited Type Public company Traded as ASX: TLS NZX …
29Pebble bed reactor — Sketch of a pebble bed reactor in Italian …
30Sodium bicarbonate — Sodium bicarbonate …
