highly-swept leading edge
41Segregated cycle facilities — A bike lane on the side of a highway. Utrecht has specially painted …
42Tailless aircraft — A tailless aircraft (often tail less) traditionally has all its horizontal control surfaces on its main wing surface. It has no horizontal stabilizer either tailplane or canard foreplane (nor does it have a second wing in tandem arrangement). A… …
43earth — /errth/, n. 1. (often cap.) the planet third in order from the sun, having an equatorial diameter of 7926 mi. (12,755 km) and a polar diameter of 7900 mi. (12,714 km), a mean distance from the sun of 92.9 million mi. (149.6 million km), and a… …
44P-63 Kingcobra — infobox Aircraft name = P 63 Kingcobra type =Fighter manufacturer =Bell Aircraft Corporation caption = designer = first flight =7 December avyear|1942 introduced = October avyear|1943 retired = status =retired primary user =United States Army Air …
45Gloster Meteor — Meteor Operational RAF Meteor F.4 in July 1955 Role …
46Cessna 150 — Model 150 Role Multipurpose civil aircraft Manufacturer Cessna First flight …
47Claude Piel — (b. 15 January 1921, Paris; d. 19 August 1982) was a notable French aircraft designer and the son of an aeronautical carpenter. Contents 1 Biography 2 Complete list of designs 3 Notes 4 References …
48Sonic boom — The term sonic boom is commonly used to refer to the shocks caused by the supersonic flight of an aircraft. Sonic booms generate enormous amounts of sound energy, sounding much like an explosion. Thunder is a type of natural sonic boom, created… …
49Spiral galaxy — A spiral galaxy is a galaxy belonging to one of the three main classes of galaxy originally described by Edwin Hubble in his 1936 work “The Realm of the Nebulae” [cite book |last=Hubble |first=E. P. |authorlink=Edwin Hubble |title=The Realm of… …
50United States housing bubble — The United States housing bubble is an economic bubble in many parts of the United States housing market including areas of California, Florida, New York, Michigan, the Northeast Corridor, and the Southwest markets. On a national level, housing… …
