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- Wheelchair (2999 bytes)
8: ... rider). Also known as ''self- propelling. Many are designed so that they can also be pushed by anot...
9: ... Usually powered by a rechargeable battery. Some are convertible (by removing the motor and changing ...
10: ...inches in diameter, instead of two large in the rear (usually approximately 22 -24 inches) and two sma...
12: ... and two small wheels near the feet, though there are often small additional features to prevent toppl...
14: ...is/her hands circular bars on the outside of the large wheels with a diameter that is slightly less th... - Bicycle (44267 bytes)
1: ...fiber]] stays and forks. It sports a drop handlebar and thin tires and wheels for efficiency and aero...
3: ...ock absorbers, and handlebars oriented perpendicular to the bike's axis]]
5: ...eans of transportation in many regions and a popular form of recreation in others.
7: ...r vehicle]]s, each of whom argue for their fair share of the world's roadways.
11: ''Main article: History of the bicycle'' - Scooter (7008 bytes)
8: ...g popular and high powered electric road scooters are on the horizon now that small electric motorcycl...
10: ... in the UK, and has spread to other countries as far away as Australia and the United States.
14: ...ed scooter design. Almost all manufacturers now carry both a classic/retro model and a sporty/modern ...
42: ...m) long and weigh over 300 pounds (136 kg). Most are powered by the Cushman Husky engine, which is a ...
50: ...other input devices can be used if the wheelchair user lacks coordination or dexterity of the hands or f... - Radar (16746 bytes)
2: ...ter]]) rotates on a track to observe activities near the [[horizon]].]]
3: ...[[aircraft]] and [[rain]]. Strong [[radio]] waves are transmitted, and a receiver listens for any [[ec...
5: ...hus radar is suited to detecting objects at very large ranges where other reflections, like sound or v...
11: ...materials such as [[metal]], making radar particularly well suited to the detection of [[aircraft]] an...
13: ...y long [[wavelength]]s that were larger than the targets and received a vague signal, whereas modern s... - Global Positioning System (28209 bytes)
1: ... fifty '''GPS''' [[satellite]]s such as this NAVSTAR have been launched since [[1978]]. ]]
5: ... [[Earth orbit]]. It uses an [[intermediate circular orbit]] (ICO) [[satellite constellation]] of at l...
7: ...of Defense]] and can be used by anyone, free of charge.
8: ... divided into three segments: space, control, and user.
10: ...GPS satellites, synchronizing the satellites' onboard atomic clocks, and uploading data for transmissi... - Weather vane (2617 bytes)
1: ... called '''weather cocks'''. Arrows are also popular, but a multitude of designs have been used.
3: ...ily. Most simple weather vanes have directional markers beneath the pointer, aligned with the geograp...
5: ...e required in a weather vane: an unequal surface area but balanced in weight.
7: ...same axis (a vertical rod). Weather stations of variable quality may be purchased, and these include ...
9: ... with other apparent sky conditions, enabling the user to make simple short range forecasts. - Hydroponics (15454 bytes)
1: ...is the growing of [[plant]]s without [[soil]]. A variety of techniques exist.
3: ...rients are introduced into a plant's water supply artificially, soil is no longer required for the pla...
7: ... small fraction of the water used in traditional farming.
9: ..., and low risk of detection; as a result, many [[marijuana]] growers use hydroponics, to escape notice...
13: ...ils. This demonstrated that the earth contained various substances which the plants needed besides wa... - Appliance (6102 bytes)
1: ...eaning, all usually referring to a device with a narrow function:
2: *One class of objects includes items that are custom-fitted to an individual for the purpose o...
4: ...ance]]s. Such items as [[toilet]]s and [[sink]]s are not appliances, but [[plumbing fixture]]s, becau...
10: ...hine and dryer may share information about load characteristics (gentle/normal, light/full), and synch...
14: ...[[Unix]], [[Microsoft Windows]], or some other opearting system, on a computer that was not designed s... - Mobile phone (30513 bytes)
3: ...] whilst being able to move over a wide area (compare [[cordless phone]] which acts as a telephone onl...
6: directly dialling the other party's number on an inbuilt keypad. Most
8: ... [[packet switching]] is already in use for some parts of the mobile phone network, especially for ser...
10: Some of the world's largest mobile phone manufacturers include [[Alcatel]...
12: There are also specialist communication systems related to... - Acrylic paint (5135 bytes)
4: ...e of paint has gained widespread popularity among artists due to its fast-drying nature, vibrant color...
6: [[Image:Artist-paint-brushes-with-various-colors-of-acrylic-paints.jpg|thumb|right|300p...
7: ==Characteristics of Acrylic Painting==
9: ...even weeks to dry, acrylics dry quickly, allowing artists to layer colors, add details, or make correc...
11: ...ty makes acrylic painting suitable for a range of artistic expressions, from traditional canvas painti... - Tool (5792 bytes)
6: ...e [[fulcrum]] (pivot point) being the hand of the user. The further out from the pivot point, the more f...
10: ..., such as the [[hammer]] and the [[knife]]. Similarly, people can use weapons, such as [[explosive]]s...
18: ==Varieties of tools==
21: ...ment]] is a concrete or abstract tool, in particular a refined one.
22: * A [[utensil]] often appears as a tool in a kitchen or dining-room setting. - Hyphen (10351 bytes)
1: {{Punctuation_marks}}
2: ...]] mark. It is used both to join words and to separate syllables. It is often confused with a [[dash...
8: ... formed of two nouns, or a noun and an adjective, are sometimes hyphenated, as ''blue-blood''. (See al...
10: ...applies to 'century' or 'invention', etc. Hyphens are generally ''not'' used in noun-noun or adverb-ad...
11: ** ''government standards organization'' and ''department store manager''
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