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- Dirt cone (206 bytes)
1: ... The surrounding ice melts away, leaving the dirt cone.
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- Eye (21834 bytes)
5: |[[image:Human eye cross-sectional view grayscale.png|thumb|Diagram of a [[human]] eye. Note that...
9: ...parency (optics)|transparent]] gel-like substance called the [[vitreous humour]], with a focusing [[le...
11: ...ensors, which are arranged hexagonally, and which can give a full 360 degree field of vision. Compound...
13: ...xtinct, had unique compound eyes. They used clear calcite crystals to form the lenses of their eyes. I...
15: ...ans of projecting an image onto these cells. They can distinguish between light and dark (day and nigh... - Retina (13061 bytes)
5: ...na not only detects light, it also plays a significant part in [[visual perception]]. In [[embryonal d...
9: ...e retina have been used for [[biometric]] identification.
11: ==Physical structure of human eye==
14: ...om a drawing by [[Santiago Ramó® ¹ Cajal| Ramó® ¹ Cajal]].)]]
16: ...ckness of the retina before reaching the rods and cones. However it does not pass through the [[epitheli... - Pollen (5420 bytes)
1: ...]]''), primrose(''[[Oenothera fruticosa]]''), and castor bean (''[[Ricinus communis]]''). ]]
3: ...ogametophytes]]''''' ('''pollen grains'''), which carry the male [[gamete]]s of [[spermatophyta|seed p...
5: ...0.006 [[mm]]) in diameter. The study of pollen is called [[Palynology]] and is highly useful in [[pale...
7: ...gins before it leaves the pollen-sac. In very few cases has anything representing prothallial developm...
9: ...form two male- or sperm-cells. The male-cells are carried to their destination in the tip of the polle... - Pottery (17136 bytes)
1: ...0px|A man shapes pottery as it turns on a wheel. (Cappadocia, Turkey)]]
2: ...her temperatures, which is partially vitrified is called "[[stoneware]]". Fine earthenware with a whit...
8: Broken pottery in archaeological sites, called [[potsherd]]s, help identify the resident cul...
14: ...e, as that negates one of the prime advantages of casting.
19: ...l of clay is placed in the center of a turntable, called the wheel head, which is turned chiefly using... - Saxophone (14311 bytes)
1: ...registers. This baritone saxophone, for example, can play lower notes than a tenor saxophone, and an ...
3: The '''saxophone''' or '''sax''' is a conical instrument of the [[woodwind]] family, usually m...
9: ...t which suited his desires both tonally and technically and possessed a new level of flexibility. Thi...
11: ... or modify the instruments. After 1866 many modifications were introduced by a number of manufacturers...
14: ...ever, unlike the [[oboe]], whose tube is a single cone, most saxophones have a distinctive curve at the ... - Shawm (725 bytes)
1: The '''shawm''' was a [[Renaissance]] [[musical instrument]] of the [[woodwind]] family, made in...
3: ...ch started straight but widened into a [[cone|conical]] end, and had a [[double reed]]. It produced a ...
5: ...[musician]]s [[Jean Hotteterre]] and [[Michel Danican Philidor]] modified it, producing an instrument ... - Serpent (instrument) (2056 bytes)
1: ...el-Sachs]] scheme of [[musical instrument classification]] places it alongside [[trumpet]]s.
3: ...cording to the instrument and the player, but typically covers a range from two [[octave]]s below [[mi...
5: ...ive, and it is sometimes played as part of historically [[authentic performance]]s.
7: ...al instrument. Another common variation is the so-called "Russian Bassoon", which is neither Russian n... - Trumpet (13239 bytes)
2: ...[french horn]]. A person who plays the trumpet is called a ''trumpeter'' or simply, ''trumpet player''...
6: ... air and metal in the trumpet. The trumpet player can select the [[pitch (music)|pitch]] from a range ...
8: ...]] or quality of sound and the ease with which it can be played. Deeper cupped mothpieces are best su...
11: ...o be confused with the modern cornet), and the [[Scandinavia]]n [[lur]].
15: ... C trumpet is most common in orchestral playing because it often does not need to transpose and produc... - Volcano (27295 bytes)
1: [[Image:Volcano2.jpg|thumb|225px|left|Volcano Illustration provided by [http://classroomclipa...
2: ...ptions exist in '''[[hotspot (geology)|hotspot volcanoes]]'''.
3: ...jpg|thumb|right|300px|Smoking Bromo and Semeru volcanoes on [[Java (island)|Java]] in [[Indonesia]].]]
4: ...has its origin from the name of [[Vulcan (god)|Vulcan]], a god of fire in [[Roman mythology]].
5: ...y of volcanoes is called [[vulcanology]] (or ''volcanology'' in some spellings). - South America (5078 bytes)
1: ...e:LocationSouthAmerica.png|thumb|250px|South America]]
2: ...b|250px|A satellite composite image of South America]]
3: ....jpg|thumb|right|250px|Physical map of South America]]
5: ...the land to the east of the Andes is largely tropical [[rain forest]], the vast [[Amazon River]] basin...
7: ...]], after [[Eurasia]], [[Africa]], and North America. - Bolivia (30115 bytes)
2: ...[landlocked]] [[country]] in central [[South America]]. It is bordered by [[Brazil]] on the north and ...
8: native_name = República de Bolivia |
12: image_map = LocationBolivia.png |
16: capital = [[La Paz]], [[Sucre]]<sup>1</sup> |
36: GDP_PPP_per_capita = $3,049 | - Landform (3582 bytes)
1: ...dform''' comprises a [[geomorphology|geomorphological]] unit. [[Ocean]]s and [[continent]]s exemplify...
3: ...ffect landforms. [[biology| Biological]] factors can also influence landforms -- see for example the ...
4: [[Image:Cappodocia_56.jpg|thumb|right|Landform of Cappodocia, Turkey.Image provided by [http://classro...
19: *[[escarpment]]
24: *[[scarp]] - Seed (4968 bytes)
1: ...these two groups of plants in dominating the landscape.
4: ...ecaceae|palms]]), and also e.g. [[brazil nut]], [[castor bean]].
10: ...hrough an animal's digestive tract. In the latter case, the seed coat protects the seed from [[digesti...
12: ...yer surrounding the actual seed is that of the so-called '''[[Drupe|stone]]''' fruits (such as the [[p...
15: ...plant species achieves success in finding ideal locations for placement of its seeds through the basic... - Gymnosperm (2478 bytes)
1: ...aked on the scales of a [[Conifer cones|cone]] or cone-like structure. The production of seeds distingui...
3: ...known only from fossils. In these earlier classification schemes, the "naked seed" plants were clearly...
6: * [[Cycad|Division '''Cycadophyta''']] – Cycads - Conifer cones (8328 bytes)
1: ...e.jpg|left|85px|Mature female European Black Pine cone]]
3: ...some species resembles a [[geometry|geometric]] [[cone]].
5: ...e_cones,_immature_male.jpg|right|thumb|120px|male cones of a pine]]
6: ...cs). The photo (right) shows mature male [[pine]] cones shortly after pollen release.
8: ...er families, and is often crucial for the identification of many species of conifers, in as much as se... - January 2 (10888 bytes)
1: ...(number)|2]]nd day of the year in the [[Gregorian Calendar]]. There are 363 days remaining (364 in [[...
3: {{JanuaryCalendar}}
7: *[[533]] - Mercurius became [[Pope]] [[Pope John II|John II]], the first po...
9: ...757]] - The [[United Kingdom]] captures [[Kolkata|Calcutta]], [[India]].
14: ...tus Beadle]] publishes ''[[The Dime Book of Practical Etiquette]]''. - Lightning rod (7638 bytes)
4: ... may be covered in [[salt]] to improve its electrical connection with the ground.
6: ...rounded at various points along the link. Electrical substations usually have a web of the lighter co...
8: ... assumed that each rod protected a [[Cone (solid)|cone]] of 45 degrees[1]. This has been found to be un...
10: ...k if they are nearer to the leader than this critical distance. It is standard practice to approximat...
12: ...ting this, locations that are safe from lightning can be determined by imagining a leader's potential ... - Lightning (33113 bytes)
10: ...truments, a number of people proposed that small scale sparks shared some similarity with lightning. [...
16: ...ard [[thunder]]. He ran home with his engraver to capture the event for posterity. While the experimen...
18: ...lin also invented the [[lightning rod]], likely because of the results of his experiment.
22: ...ually fail to produce enough charge separation to cause lightning.
24: ...lament grows in length. At the same time, electrical energy stored in the e-field flows radially inwa... - Abacus (7218 bytes)
1: An '''abacus''' is a calculation tool, often constructed as a wooden fram...
8: ...ing them up or down towards the beam. The abacus can be reset to the starting position instantly by a...
10: ...an techniques have been developed to do [[multiplication]], [[division (mathematics)|division]], [[add...
12: '''Bead arithmetic''' is the calculating technique used with various types of aba...
26: The groove marked I indicates units, X tens, and so on up to millions. The ... - Honolulu, Hawaii (19495 bytes)
25: ...eltered bay" or "place of shelter." The city is located along the southeast coast of the island of [[O...
29: ...ocean location and some cooling achieved by the [[California Current]] that passes through the islands...
33: The '''Honolulu District''' is located on the southeast coast of O‘ahu between ...
35: ...nolulu proper can be found a number of [[volcanic cone]]s: [[Punchbowl]], [[Diamond Head, Hawaii|Diamond...
37: ... Alaska]] are the only two US state capitals that cannot be reached by road from the rest of the count...
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