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- Aviation history (39698 bytes)
3: ...[The Bible]]. Nevertheless, it exemplifies man's desire to fly.
5: ...rping the planes' wings ([[Wright brothers]]). Modern planes are controlled by [[computer]]s, which c...
15: ... also sketched designs for a helicopter, but this design would not have flown.
17: ... for powered flight until the [[gasoline]] engine designed by the Wright Brothers.
19: ...d understanding of the relationship between altitude and the atmosphere. - Airline (29546 bytes)
1: ...tography of Air Kenya, Kenya Africa. Picture provided by [http://classroomclipart.com Classroom Clip A...
11: ...it greater freedom, in steps that are usually decades apart. This pattern has not been completed for a...
13: ...uenced by macroeconomic activity in the markets under study. These patterns are highly seasonal, and o...
15: ...ions, but certainly areas where deregulation provided more competition and greater pricing freedom res...
17: ...upgrades they ordered to respond to the increased demand. Since 1980, the industry as a whole has not ... - Caterpillar track (7234 bytes)
1: ... on [[snowmobile]]s, the Caterpillar tracks are made or metal or some rigid material. The tracks help...
6: A crude caterpillar track was designed in 1770 by Richard Edgeworth, and steam pow...
8: ... Lombard $60,000 so they could produce vehicles under his patent.
10: ...by & Sons|Hornsby]] based in [[Grantham]], [[UK]] developed and patented a caterpillar track in [[1905...
12: ...ing the years. The first tanks to be fielded were developed from Holt tractors which were already in u...
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