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- Timeline of invention (28171 bytes)
3: ...cal form many years before another inventor improves the invention into a practical form. Where there ...
7: ...uage|Language]] (controversial - this is the earliest likely)
14: * 26 KYA: [[Venus of Dolni Vestonice|Ceramics]] in [[Moravia]]
19: ...iculture#History|Agriculture]] in the [[Fertile Crescent]]
30: * [[Irrigation]] in the [[Fertile Crescent]] - Aviation history (39698 bytes)
3: ...The Bible]]. Nevertheless, it exemplifies man's desire to fly.
5: ...e controlled by [[computer]]s, which can make planes that were otherwise unflyable able to fly, such a...
13: ...e many claims and counter-claims how successful these were. See [[First flying machine]] for a review...
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. - Alberto Santos-Dumont (14938 bytes)
1: ...nt in his trademark Panama hat.<BR>From the archives of the [[Smithsonian Institution]].</div>
2: ...lloon]]s as well as the first practical [[airship|dirigible]].
5: That aircraft, designated
9: ...ntions in his vast property. So successful were these innovations that Santos-Dumont's father gathered...
11: ...ame to him while contemplating the magnificent skies of [[Brazil]] in the long, sunny afternoons at th... - Aircraft (13315 bytes)
9: ==Categories and classification==
11: Aircraft fall into two broad categories:
15: ...t must descend in relation to the air (but not necessarily in relation to the ground). Helicopters and...
18: ...er as ships float on the water. In particular, these aircraft use a relatively low density gas such a...
24: Below, we describe classifications by design, propulsion and usage. - History of Germany (53864 bytes)
3: ...e late 19th century, they exerted influence upon Western civilization from its very beginnings.
5: ... often known as the second Reich to indicate its descent from the medieval empire. By the same reasoni...
7: ...ons. The [[History of Germany since 1945]] continues this page.
10: ...rmanic tribes]], [[Confederations of Germanic Tribes]], [[Germania]], [[Germania Inferior]], [[Germani...
12: ...s Cornelius Tacitus]], author of ''Germania'', a descriptive work about the Germanic people at the Rom... - Germany in the Middle Ages (53864 bytes)
3: ...e late 19th century, they exerted influence upon Western civilization from its very beginnings.
5: ... often known as the second Reich to indicate its descent from the medieval empire. By the same reasoni...
7: ...ons. The [[History of Germany since 1945]] continues this page.
10: ...rmanic tribes]], [[Confederations of Germanic Tribes]], [[Germania]], [[Germania Inferior]], [[Germani...
12: ...s Cornelius Tacitus]], author of ''Germania'', a descriptive work about the Germanic people at the Rom...
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