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- Helicopter (20080 bytes)
1: ... The first stable, fully-controllable helicopter placed in production was invented by [[Igor Sikorsky...
5: ...tage is maneuverability: helicopters can hover in place, reverse, and above all [[take off]] and [[lan...
7: ==Applications==
15: ... not until after the invention of the powered aeroplane in the [[20th century]] that actual models wer...
19: ...emselves are moved. The helicopter's rotor can simply be regarded as rotating wings. - Diving Glossary (6254 bytes)
9: ; [[Carbon dioxide poisoning]] : is due to incomplete elimination of carbon dioxide
15: ; Dive club : a group of people with an interest in SCUBA diving.
17: ; Dive Shop : supplier of dive equipment or training, or organizer of...
23: ...gend]] about a diver who is scooped up by a plane/chopper and dropped on a forest fire led someone to build...
26: ; [[Surface supplied diving|Hard Hat diving]] : A term for commerci... - Stone Age (17593 bytes)
4: ...om a variety of different kinds of stone. For example, [[flint]] and [[chert]] were shaped or chipped ...
13: ...rimental archaeology]], by attempting to create replica tools. This is done by [[flintknapper]]s who r...
24: ...rom about 2 million years ago to the end of the [[Pleistocene]], 10,000 years ago.
26: ...' learnt to control fire and created more complex chopper tools, as well as expanding [[Single-origin hypot...
31: ...ing from island to island. Middle Palaeolithic peoples demonstrate the earliest evidence for [[art]] a... - Bicycle (44267 bytes)
1: ... shaped aluminum tubing and [[Graphite-reinforced plastic|carbon fiber]] stays and forks. It sports a...
14: ...cycle_two_1886.jpg|thumb|280px|Smartly dressed couple seated on an 1886-model bicycle for two.]]
17: ...ent took bicycle design in a different direction, placing pedals on an enlarged front wheel. Their cr...
21: ...cyclePlymouth.jpg|left|thumb|Bicycle in Victorian Plymouth, with a predecessor of the Starley diamond-...
25: ...rimary means of transportation for millions of people around the globe. - Motorcycle (40437 bytes)
4: ...25 cc motorcycle, the Italian-manufactured Cagiva Planet.]]
12: [[Image:Daimler-1-motorcycle-1.jpg|thumb|right|Replica of first Motorcycle]]
29: ...erglass]] shell, known as a ''fairing'', is often placed over the frame, to shield the rider from the ...
61: ...ar suspension, rear loading and increased speed amplifies cornering weave tendencies.
73: ...he far ends of the swingarm, and the monoshock is placed at the front of the swingarm.
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