ignition-delay period
51space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… …
52Molotov–Ribbentrop Pact — Treaty of Non Aggression between Germany and the Soviet Union Molotov signs the German–Soviet non aggression pact. Behind him are Ribbentrop and Stalin. Signed August 23, 1939 Location Moscow, Russian SFSR …
53Electricity on Shabbat in Jewish law — Jews who observe the Shabbat (Sabbath) have the practice of refraining from turning electricity on or off during Shabbat. In most cases they also abstain from making adjustments to the intensity of an electrical appliance as well. Authorities of… …
54Fire-control system — Note: the term fire control may also refer to means of stopping a fire, such as sprinkler systems. A fire control system is a computer, often mechanical, which is designed to assist a weapon system in hitting its target. It performs the same task …
55Jefferson Airplane — Infobox musical artist Name = Jefferson Airplane Background = group or band Img capt = Alias = The Airplane Years active = 1965 – 1974 1989 Origin = San Francisco, California, United States Genre = Psychedelic rock, acid rock, folk rock, hard… …
56Tachometer — A tachometer is an instrument that measures the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute (RPM) on a calibrated analog dial, but digital displays are increasingly… …
57George Metesky — George P. Metesky (November 2 1903 ndash; May 23 1994), better known as the Mad Bomber, terrorized New York City for 16 years in the 1940s and 1950s with explosives he planted in theaters, terminals, libraries and offices. Bombs were left in… …
58Pontiac Firebird — Infobox Automobile name = Pontiac Firebird/Trans Am manufacturer = General Motors class = Pony car, Muscle car platform = F body layout = FR layout production = 1967 2002 (1969 2002 Trans Am) successor = Pontiac GTO (2004 2006) related =… …
59Operation Igloo White — Part of the Vietnam War Date 1968–1973 Location Southern Laos Result …
60Dodge Ram — This article is about the full size truck. For other uses such as the full size van, see Dodge Ram (disambiguation). Dodge Ram Manufacturer Chrysler Production 1981–present …
