free-flight trajectory
61Space Shuttle Challenger disaster — For more information about the final mission and crew of the Challenger, see STS 51 L. Space Shuttle Challenger s smoke plume after the in flight breakup that killed all seven crew members …
62Force — For other uses, see Force (disambiguation). See also: Forcing (disambiguation) Forces are also described as a push or pull on an object. They can be due to phenomena such as gravity, magnetism, or anything that might cause a mass to accelerate …
63Missile — For other uses, see Missile (disambiguation). A V 2 missile launch by the British during Operation Backfire. Though a missile may be any thrown or launched object, it colloquially almost always refers to a self propelled guided weapon system.… …
64External ballistics — is the part of the science of ballistics that deals with the behaviour of a non powered projectile in flight. External ballistics is frequently associated with firearms, and deals with the behaviour of the bullet after it exits the barrel and… …
65Glossary of cricket terms — Cricket is a team sport played between two teams of eleven. It is known for its rich terminology.[1][2][3] Some terms are often thought to be arcane and humorous by those not familiar with the game.[4] This is a general glossary of the… …
66Volleyball — For other uses, see Volleyball (disambiguation). V ball redirects here. For the cricket variant, see V Ball cricket. Volleyball …
67Elliptic orbit — A small body in space orbits a large one (like a planet around the sun) along an elliptical path, with the large body being located at one of the ellipse foci …
68Air France — For other uses, see Air France (disambiguation). Air France Société Air France IATA AF ICAO AFR …
69General relativity — For a generally accessible and less technical introduction to the topic, see Introduction to general relativity. General relativity Introduction Mathematical formulation Resources …
70Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… …
