emergency valve closing system
41October 2007 — is the tenth month of that year. It began on a Monday and 31 days later, ended on a Wednesday. International holidays October 2 – Gandhi Jayanti (India) October 3 – Last third of Ramadan which includes Laylat al Qadr (Islamic) October 3 – end of… …
42Military equipment of Turkey — The military equipment of Turkey includes a wide array of arms, artilleries, large surface vessels, cannons, armored vehicles, mortars, unmanned vehicles and many different equipments. Contents 1 Historical development 1.1 General 1.2 1923 1950 …
43Safety engineering — is an applied science strongly related to systems engineering and the subset System Safety Engineering. Safety engineering assures that a life critical system behaves as needed even when pieces fail.In the real world the term safety engineering… …
44Buffalo Fire Department — Motto: Ut Vivant Alii Established 07/01/1880 Staffing Career Stre …
45Somerset and Dorset Joint Railway — Overview Type Heavy rail Status Disused Locale …
46Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …
47Question Mark (aircraft) — Question Mark was a modified Atlantic Fokker C 2A airplane, modified and flown by aviators from the United States Army Air Corps to experiment with aerial refueling. The flight took place from January 1 to January 7, 1929.BackgroundThe first… …
48Electric Line — The term wireline usually refers to a cabling technology used by operators of oil and gas wells to lower equipment or measurement devices into the well for the purposes of well intervention and reservoir evaluation. Braided line can contain an… …
49N&W J class (1941) — Norfolk Western #611 Norfolk and Western #611 Power type Steam Builder Roanoke Shops Serial number 388 Build date May 1950 …
50List of Historic Mechanical Engineering Landmarks — The following is a list of Historic Mechanical Engineering Landmarks as designated by the American Society of Mechanical Engineers since it began the program in 1971. The designation is granted to existing artifacts or systems representing a… …
