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- Steel (28384 bytes)
2: [[Image:Steel framework.jpg|thumb|300px|Steel framework]]
3: ...s, which are naturally arranged in a [[lattice]], from sliding past one another. Varying the amount of...
8: ...rtant that smelting take place in a fairly oxygen-free environment. Unlike copper and tin, liquid iro...
11:
17: ... from this expansion generally take the form of [[compression]] on the crystals of martensite and [[tension]] o... - Human brain (15406 bytes)
19: ...d the [[circle of Willis]]. Blood is then drained from the brain through a [[brain sinuses|network of ...
21: ...he dense fluid protects the brain and spinal cord from shock; a brain that weighs 1,500 g in air weigh...
23: ...tes the soft tissues of the brain and spinal cord from the hard surrounding bones (skull and vertebrae...
25: ...dicine, [[childbirth]] was a dangerous event that frequently resulted in the death of the mother. The...
33: ...e [[neocortex]] with incoming sensory information from the [[brain stem]]. Powerful emotional pathways... - Glass (26176 bytes)
1: ...iginally, which can be seen in its [[conchoidal]] fracture.
3: The word ''glass'' comes from [[Latin]] ''glacies'' (ice) and corresponds to ...
18: ...nto other shapes and colors as shown in this ball from the [[Verrerie of Brehat]] in [[Brittany]].]]
22: ...plify]] transmitted signals by [[laser]] emission from within the glass itself.
26: Glass is sometimes created naturally from volcanic [[magma]]. This glass is called [[obs... - Trumpet (13239 bytes)
1: [[Image:USAFE Band trumpeter.jpg|frame|right|Trumpeter performing with the United Sta...
2: ...[euphonium]], [[trombone]], [[sousaphone]], and [[french horn]]. A person who plays the trumpet is cal...
6: ...pet player can select the [[pitch (music)|pitch]] from a range of [[overtone]]s or [[harmonics]] by ch...
11: ... [[Baroque]] trumpets. The modern trumpet evolved from earlier non-valved instruments, such as the Bar...
16: The B♭ trumpet's typical range extends from the written F♯ (concert E) immediately be... - Volcano (27295 bytes)
4: The name "volcano" has its origin from the name of [[Vulcan (god)|Vulcan]], a god of f...
18: ...'[[Volcanic cones]]''' or [[cinder cone]]s result from eruptions that throw out mostly small pieces of...
41: ...tive" volcano. The lifespan of a volcano can vary from months to several million years, making such a ...
43: ...to note that the span of recorded history differs from region to region; in the [[Mediterranean]], rec...
47: ...tone as extinct. In fact, because the caldera has frequent earthquakes, a very active geothermal syste... - Timeline of invention (28171 bytes)
6: * 2.4 MYA: [[Oldowan|Stone tools]] in [[Africa]]
8: ...YA: Controlled [[fire]] in [[Cradle of Humankind|Africa]]
26: * [[Cloth]] woven from [[flax]] fiber
112: * [[1589]]: [[Stocking frame]]: [[William Lee]]
134: ...quadrant]]: [[Thomas Godfrey (inventor)|Thomas Godfrey]] - Solar system (21174 bytes)
26: **[[Planetesimal]]s, from which the planets were originally formed, are s...
30: **[[Meteoroid]]s are asteroids that range in size from roughly boulder sized to particles as small as ...
34: ... belt and [[scattered disk object]]s in the outer fringes.
36: ...Sedna]], with a highly elliptical orbit extending from about 76 to 928 AU, does not obviously fit in e...
37: ... Some of the dust is likely [[interstellar dust]] from outside the Solar System. - Jupiter (24639 bytes)
138: '''Jupiter''' is the fifth [[planet]] from the [[Sun]] and by far the [[Solar system by si...
142: ...ter was able to be seen, just below the [[Moon]], from parts of the [[Southern Hemisphere]].
145: ...uishes a large and massive planet such as Jupiter from a [[brown dwarf]], although the latter possesse...
175: ...phases of hydrogen; the conditions blend smoothly from gas to liquid as one descends.
178: [[Image:Jupiter from Voyager 1.jpg|thumb|left|Detail of Jupiter's at... - Saturn (planet) (23300 bytes)
137: '''Saturn''' is the sixth [[planet]] from the [[Sun]]. It is a [[gas giant]], the second-...
142: ...nterior, the droplets of helium releasing heat by friction as they fall down through the lighter hydro...
144: ...smaller storm was observed. Astronomers using [[infrared]] imaging have shown that Saturn has a warm p...
147: ...I'', based on [[radio astronomy|radio]] emissions from the planet, has a period of 10 h 39 min 22.4 s ...
165: ...e never part of a moon, but are instead left over from the original [[nebula]]r material that Saturn f... - Elbow-joint (10539 bytes)
2: ...medially and laterally, and, to a less extent, in front and behind. These thickened portions are usual...
14: ... right angles. This ligament is in relation, in ''front,'' with the [[Brachialis]], except at its most...
17: ...t are a few scattered fibrous bundles, which pass from the deep surface of the transverse band to the ...
21: ...these two bands a few intermediate fibers descend from the medial epicondyle to blend with a ''transve...
28: ...synovial membrane]] is very extensive. It extends from the margin of the articular surface of the hume... - List of computing topics (15876 bytes)
201: [[Context-free grammar]] --
219: [[Data compression]] --
272: [[Fragmentation]] --
273: [[Free On-line Dictionary of Computing]] --
274: [[Free Software Foundation]] -- - Ogg (4373 bytes)
2: ...] designed for efficient [[streaming]] and [[file compression]] ([[data storage|storage]]).
4: ...have been incorporated into a number of different free and commercial [[media player]]s.
5: ...ideo codec [[Theora]], and the human speech audio compression format, [[Speex]].
8: ...media content which are both freely available and freely re-implementable in software.
12: ...tstreams may be [[mux]]ed in the file where pages from each bitstream ordered by the seek time of the ... - Modem (21628 bytes)
1: ...' (a [[portmanteau|portmanteau word]] constructed from '''mod'''ulator and '''dem'''odulator) is a [[d...
5: ...odems" transmit [[serial communications|repeating frames of data]] at very high data rates over [[micr...
7: ...lons. Heat changes an etalon's size and thus its frequency.
9: ...ed over any means of transmitting analog signals, from driven [[diode]]s to [[radio]].
14: ...first commercial modem, the [[Bell 103]]. Using [[frequency-shift keying]], where two tones are used t... - Avalanche (25211 bytes)
1: [[Image:Nuptse-fromKalarPatar.jpg|thumb|right|200px|A [[Himalaya|Hi...
7: ...ing else in its path. For example, in [[Montroc, France]], in [[1999]] 300,000 cubic metres of snow s...
12: ...m anchors such as rocks and trees, stress support from top or bottom of slope).
14: ...temperatures (e.g., a lubricated melt layer, or a fragile crystal layer) before, during and after snow...
24: ...hern and north-eastern aspects. Slopes sheltered from the wind tend to gather more snow. [[Cornice]]... - Arch (4239 bytes)
16: ...se centreline more closely followed the forces of compression and which was therefore stronger. This design ha...
24: ...f this is the [[Arc de Triomphe]] in [[Paris]], [[France]].
30: ...ort. Occasionally arches would fall down when the frame was removed if construction or planning had be... - Optic nerve (5184 bytes)
2: ...s the [[nerve]] that transmits visual information from the [[retina]] to the [[brain]].
5: ...nerve to nine primary visual nuclei in the brain, from whence a major relay inputs into the [[primary ...
7: ...yed to the visual cortex. Its diameter increases from about 1.6 mm within the eye, to 3.5 mm in the o...
9: ...e occipital lobe, and fibers carrying information from the contralateral inferior visual field termina...
22: ...three most common injuries to the optic nerve are from glaucoma, optic neuritis (especially in those y... - Cerium (12377 bytes)
176: ...oling of the metal can change its oxidation state from about 3 to 4.
223: The isotopes of cerium range in [[atomic weight]] from 123 [[atomic mass unit|u]] (123-Ce) to 152 u (1...
226: ...h bismuth and antimony are very exothermic. Fumes from cerium fires are toxic. Water should not be use... - Magnesium (9193 bytes)
7: ...of this metal is to aid the removal of [[sulfur]] from iron and steel.
15: ...e production of pure [[uranium]] and other metals from their [[salt]]s.
17: * Dead-burned magnesite is used for refractory purposes such as brick and liners in furnac...
21: ... from sticking to the equipment during the tablet compression process (i.e., when the tablet's substance is pre...
26: The name originates from the [[Greek language|Greek]] word for a distric... - Screw (22059 bytes)
4: [[Image:screws.jpg|frame|Screws come in a variety of shapes and sizes f...
17: ... through the material being fastened and provides compression.
49: [[Image:Screw and trough.gif|frame|right|Rotating screw and fixed trough]]
50: ...ch, thread shape or cross section, coefficient of friction (static and dynamic), and holding power of ...
60: ...d in half, or friction between the bars (called ''fretting'') may weaken them. For this type of appli... - Automobile (19750 bytes)
13: ...first motor bike) and [[Austrian]] inventor [[Siegfried Marcus]] in [[Vienna]].
15: ...en automobiles were built in Britain in 1895 by [[Frederick William Lanchester]] who also patented the...
19: ... initially saw little application in his native [[France]], and the center of innovation passed to [[U...
23: There are offers to get a new car for free or get paid to drive them in return for display...
31: ...e design of their predecessor. Through the period from 1900 to the mid [[1920s]], development of autom...
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