guard against debris
21St Nazaire Raid — Operation Chariot redirects here. For the proposed construction of a harbour by nuclear weapons, see Operation Chariot (1958). St Nazaire Raid Operation Chariot Part of North West Europe Campaign …
22Mountain biking — Mountain biker riding in the Arizona desert Highest governing body International Mountain Bicycling Association First played Open to debate. Modern era began in the late 1970s …
23Force field — For other uses, see Force field (disambiguation). A force field, sometimes known as an energy shield, force shield, or deflector shield is a concept of a field tightly bounded and of significant magnitude so that objects affected by the… …
24Quapaw — The Quapaw people are a tribe of Native Americans who historically resided on the west side of the Mississippi River in what is now the state of Arkansas. Today they live in Ottawa County, Oklahoma. Their language is of the Dhegiha branch of the… …
25Infection control — is the discipline concerned with preventing nosocomial or healthcare associated infection, a practical (rather than academic) sub discipline of epidemiology. It is an essential, though often under recognized and under supported, part of the… …
26interplanetary dust particle — ▪ astronomy also called micrometeoroid, micrometeorite , or cosmic dust particle a small grain, generally less than a few hundred micrometres in size and composed of silicate minerals and glassy nodules but sometimes including sulfides,… …
27Air Force Space Command — Infobox Military Unit unit name= Air Force Space Command caption=Emblem of the AFSPC dates= September 1982–Present country= United States branch= Air Force type= Major Command role= Development and operation of military space technologies size=… …
28London Fire Brigade equipment — The London Fire Brigade operates a large and diverse fleet of appliances, all carrying a variety of specialised equipment and apparatus.Dual Purpose Pump LadderA Dual Purpose Pump Ladder (DPL) is the standard type of firefighting vehicle used by… …
29London Fire Brigade appliances — The London Fire Brigade operates a large and diverse fleet of appliances, all carrying a variety of specialised equipment and apparatus for use in firefighting and rescue operations. Contents 1 Dual purpose ladder 2 Aerial appliances 3 Fire… …
30Pickens, Slim — (1919–1983) Slim Pickens was born Louis Bert Lindley Jr. in Kingsberg, California, in 1919, and started out as a Texas cowhand. He took the pseudonym of Slim Pickens when he joined the rodeo circuit as a clown in the 1930s. He also competed as …
