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- Computer (32773 bytes)
3: ...ed in this way is given appropriate input data, then it can automatically solve the problem or predict...
4: ...lication of computers is called '''[[computer science]].'''
6: ==General principles==
8: ... popular types of computers have electronic components.
10: ...ed as closely as possible onto the physical phenomena being exploited. For example, electron flows mi... - List of computing topics (15876 bytes)
2: ... [[computer science basic topics]], [[Computer science topics]], [[List of terms relating to algorithm...
77: [[88open]] --
89: [[Accent programming language]] --
143: [[Blue screen of death]] --
160: [[Central processing unit]] -- - Capacitor (29664 bytes)
2: ...ut opposite electric charges have been placed. Intentional capacitors have thin conducting plates (usu...
9: ...e positively charged left plate. The molecules then create a leftward electric field that partially a...
13: ...tored on each plate for a given [[potential difference]] or ''voltage'' (''V'') which appears across t...
16: ...ne [[coulomb]] of charge causes a potential difference of one [[volt]] across the plates. Since the f...
18: ...e and inversely proportional to the distance between the plates. It is also proportional to the [[perm... - Hybrid vehicle (47544 bytes)
6: ...ch as [[ethanol]] or plant based oils have also seen occasional use.
8: ...hybrids'' because they can use a mixture of different fuels — typically gasoline and [[ethanol]]...
12: ...nergy | url=http://www.house.gov/science/hearings/energy02/jun26/charter.htm | accessdate=June 26 | ac...
14: ...ygen]], rather than economizing on fuel. Since then, many submarines have moved to [[nuclear power]],...
16: ...urthermore, coal is only one source of centrally generated power, and in some places such as Californi... - Photography (18493 bytes)
1: [[Image:Camera.jpg|right|Lens and mounting of a large format camera|thumb]]
2: ... patterns, as reflected from [[object]]s, onto a sensitive medium through a timed exposure. The proces...
5: ...ctrical charges]] rather than photographic film, hence the term [[electrophotography]]. The [[rayograp...
7: ...fter processing, this produces an image whose contents are acceptably sharp, bright and composed to ac...
12: *[[Aperture]] of the lens - Camera (4262 bytes)
1: ...early mechanism for projecting images in which an entire room functioned much as the internal workings...
3: ...he other end. This diameter of the aperture is often controlled by an [[Diaphragm (optics)|diaphragm]]...
5: ...llow the film to capture what little light is present.
7: ...focus]] that is indicated on the camera body. The user will guess or calculate the distance to the subje...
9: ...focusing. [[View camera]]s use a ground glass screen which is removed and replaced by the photographic... - Juneau City and Borough, Alaska (8577 bytes)
6: ...] name of the town is ''Dzántik'i Héeni'' "flounder creek", and [[Auke Bay]] just north ...
10: ...ridge to [[Douglas Island]], an airport, and dead-end roads. A car brought to Juneau must be put on a...
13: ...nd for local [[Tlingit|Tlingit Indians]], known then as the [[Auke]] and [[Taku]] tribes, who had inha...
15: ...nterest. However, at Chief Kowee's urging, Pilz sent [[Joe Juneau]] and [[Richard Harris]] back to th...
19: On [[October 18]], [[1880]], the two men marked a 160 acre (0.6 km²) town site w... - Tennis (24557 bytes)
1: ...9th Century, the game spread first throughout the English-speaking world, particularly among the upper...
3: ... sport, especially the four [[Grand Slam]] tournaments.
8: :''Main article: [[Tennis_court|Tennis court]]''
10: ...tennis_court.png|right|frame|The dimensions of a tennis court, in [[feet]].]]
12: ...gh at the posts, and 3 feet (914 mm) high in the center. - Inca Empire (25571 bytes)
4: ...empire a large portion of western South America, centred on the [[Andes|Andean]] mountain ranges. The ...
6: ... local languages were spoken. The Inca leadership encouraged the worship of their gods, the foremost o...
9: ...n suyu'' in [[Quechua]] is "the four regions between", which referred to the four provinces whose corn...
11: ...r the civilization, and is used as an adjective when referring to the beliefs of the people or the art...
17: ...cha of Colina de las Ventanas in [[Pacaritambo]] sent forth his four sons and four daughters to establ... - Navigation (15650 bytes)
7: ..., passed by oral tradition, from navigator to apprentice.
9: ...ns at various times of day and year, memorized extensive facts concerning:
18: ... evacuate people. The guild secrets might have been lost, had not one of the last living navigators t...
20: ...c Ocean from Hawaii to [[Tahiti]] using no instruments.
29: There are several different branches of navigation, including but not limite... - Computer keyboard (4428 bytes)
3: ...nd holding several keys simultaneously, or in sequence; other keys do not produce any symbol, but inst...
9: ...ically, this is because they are writing in different languages, but specialised keyboard layouts for ...
11: ...ously. As an example, the [[GKOS keyboard]] has been designed for small wireless devices.
13: ...board_without_irrelvant_keys.jpg|thumb|250px|Some users find some keys (especially the [[Caps Lock]] key...
26: ...eys can usually be configured to the user's preferences. Alphabet keys are also used to do actions sta... - Computer mouse (29399 bytes)
1: ...e ball and transfer movement.<br>'''3:''' Optical encoding disks include light holes.<br>'''4:''' Infr...
2: '''5:''' Sensors gather light pulses to convert to X and Y vel...
5: ...ural can be either ''mice'' or ''mouses''. See [[English plural]] for more information.
7: ==History of mouse engineering==
9: ...e first computer mouse held by inventor [[Douglas Engelbart]] showing the wheels which directly contac... - Modem (21628 bytes)
1: ...carrier wave|carrier]] [[signal]] ([[sound]]), to encode [[digital]] information, and that also demodu...
5: Far more exotic modems are used by internet users every day. In [[telecommunications]], "radio mo...
7: ... Heat changes an etalon's size and thus its frequency.
9: ...ny means of transmitting analog signals, from driven [[diode]]s to [[radio]].
12: ...abre (computer system)|Sabre]], is the distant parent of today's SABRE system. - Global warming (53726 bytes)
1: [[Image:Instrumental_Temperature_Record.png|thumb|250px|right|Globa...
3: ...ticians, but by only a minority of established scientists.
5: ...tment studies]] predict that even if levels of greenhouse gases and solar activity were to remain cons...
7: ... change]]. Such changes can trigger various detrimental effects by causing [[flood]]s, [[drought]]s, h...
11: ...is used to indicate the presumption of human influence. - Sand (3758 bytes)
5: ...sum sand dunes of the [[White Sands National Monument]] in [[New Mexico]] are famous for their bright,...
7: ...like. In a [[desert]], sand is a dominant constituent of the soil.
9: The study of sand is called [[arenology]].
12: Sand is often a principal component of the aggregate used in the preparation of [[co...
14: ...ntensive [[dairy farming]] because of their excellent drainage characteristics. - Christmas tree (16574 bytes)
2: ... lights]] and colourful [[Christmas ornament|ornament]]s during the days around Christmas.
5: ...tonbury thorn]] is still sent annually for the Queen's Christmas table in the [[United Kingdom]].
7: ...right|thumb|Silhouette drawing of the Three Wise Men on camels following the star of Bethlehem.]]
9: ... to the pagan tribes using the cone-shaped evergreen trees because of their triangular appearance.
11: ...u-Weilburg]] introduced the Christmas tree to [[Vienna]] in [[1816]], and the custom spread across Aus... - Aluminium (26079 bytes)
1: {{Elementbox_header | number=13 | symbol=Al | name=alumini...
2: {{Elementbox_series | [[poor metal]]s }}
3: {{Elementbox_groupperiodblock | group=13 | period=3 | bloc...
4: {{Elementbox_appearance_img | Al,13| silvery }}
5: {{Elementbox_atomicmass_gpm | [[1 E-26 kg|26.981538(2)]] }... - Hammond organ (5160 bytes)
1: ... used for [[jazz]], [[blues]], and to a lesser extent [[Rock and roll|rock music]] (in the [[1960s]] a...
5: ...neath electromagnetic pickups. Although they are generally included in the category of electronic orga...
7: ...ause the subtly-changing phase relationships between tonewheels could not be easily replicated.
9: ...ect. Soon, the Leslie became a ''de facto'' component of any Hammond setup wishing to produce that sig...
13: ...ducing sound such as the model J100. These instruments do not have the distinctive characterful 'Hammo... - Tobacco (28162 bytes)
1: {{Taxobox_begin | color = lightgreen | name = Tobacco}}
3: {{Taxobox_begin_placement | color = lightgreen }}
4: {{Taxobox_regnum_entry | taxon = [[Plant]]ae}}
5: {{Taxobox_divisio_entry | taxon = [[Flowering plant|Magnoliophyta]]}}
6: {{Taxobox_classis_entry | taxon = [[Magnoliopsida]]}} - Solar power (20128 bytes)
1: ...despread use where other supplies of power are absent such as in remote locations and in space.
3: ...e reflect a further 35% of the total energy. The generally accepted standard is 1020 watts per square ...
5: ... through [[photosynthesis]]. We use this energy when we burn wood or [[fossil fuel]]s.
16: ...light hits a dark surface and the surface warms when the light is converted to heat by interacting wit...
24: Many other types of power generation are indirectly solar-powered.
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