cancelling
121Postage stamp — A postage stamp is an adhesive paper evidence of pre paying a fee for postal services. Usually a small paper rectangle or square that is attached to an envelope, the postage stamp signifies that the person sending the letter or package may have… …
122Quark — In physics, a quark (IPAEng|kwɔrk, IPAEng|kwɑːk or IPAEng|kwɑːrk) is a type of subatomic particle. [cite web |title=Fundamental Particles |publisher=Oxford Physics |url=http://www.physics.ox.ac.uk/documents/pUS/dIS/fundam.htm |accessdate=2008 06… …
123Rickenbacker — For the American WWI fighter pilot, see Eddie Rickenbacker. For the airport, see Rickenbacker International Airport. Rickenbacker International Corporation, also known as Rickenbacker (pronEng|ˌrɪkənˈbækɚ) [http://www.rickenbacker.com/faq… …
124Rotary engine — The rotary engine was an early type of internal combustion aircraft engine in which the crankshaft remains stationary and the entire cylinder block revolves around it. The design was used mostly in the years shortly before and during World War I… …
125Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …
126Closings and cancellations following the September 11 attacks — Many closings and cancellations followed the September 11th attacks, including major landmarks, buildings, restrictions on access to Lower Manhattan, and postponement or cancellation of major sporting and other events. Landmarks were closed… …
127Specific heat capacity — Specific heat capacity, also known simply as specific heat, is the measure of the heat energy required to increase the temperature of a unit quantity of a substance by a certain temperature interval. The term originated primarily through the work …
128Trinidad and Tobago Defence Force — Military of Trinidad and Tobago Service branches Regiment, Air Guard, Coast Guard, Defence Force Reserves Manpower Military age NA Available for military service 342,980, age 18–49 (2000 est.) …
