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- Puzzle (1711 bytes)
1: ...zleExample.jpg|right|thumb|An example of a simple puzzle.]]
2: ...s of [[Japan]] monks used to write [[mathematical puzzle]]s on temple walls: see [[sangaku]].
4: ==Well known puzzles==
8: * [[Eight queens puzzle]]
9: * [[n-puzzle]] (a.k.a. Fifteen puzzle) - Sliding puzzle (2847 bytes)
1: ...', '''sliding block puzzle''', or '''sliding tile puzzle''' challenges a player to slide usually flat piec...
3: ...ard, are important parts of solving sliding block puzzles.
5: ...mple shows, some sliding puzzles are [[mechanical puzzles]].
6: ...nical fixtures are usually not essential to these puzzles, the parts could as well be tokens on a flat boa...
8: ... form a picture on-screen. The last square of the puzzle is then displayed automatically once the other pi...
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- 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... - Plate tectonics (27764 bytes)
3: ...nst one another), divergent (two plates move away from each other), and transform (two plates slide pa...
8: ...h the ''chemical'' subdivision of the Earth into (from innermost to outermost) [[Earth#The core|core]]...
12: ...crust|oceanic]] lithospheres; for example, the [[African Plate]] includes the continent and parts of t...
18: ...oundaries]]''' occur where two plates slide apart from each other.
24: ...use highly visible surface effects. Because of [[friction]], the plates cannot simply glide past each... - 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]] - List of reference tables (55289 bytes)
7: ... allowing the link to be accessible in the future from the toolbar.
178: *[[List of largest optical refracting telescopes]]
363: *[[Historical African place names]]
371: *[[List of toponyms]] (with names derived from a place or region)
398: *[[List of fruits]] - List of inventors (14020 bytes)
12: *[[Manfred von Ardenne]], (1907-1997), [[Germany]]
53: *[[Jacques-Yves Cousteau|Jacques Cousteau]], [[France]] — [[Aqua-Lung|aqualung]]
56: ...illiam Cullen]] — mechanical / chemical [[refrigeration]]
87: *[[Benjamin Franklin]], (1706-1790), [[United States|USA]] &mdas...
88: *[[William Friese-Greene]], (1855-1921) — [[cinematograph... - Mathematics (24164 bytes)
1: ...bstraction]] and [[logic|logical]] [[reasoning]], from [[counting]], [[calculation]], [[measurement]],...
8: ...[Day|days]], [[Season|seasons]], [[Year|years]]. From counting, naturally followed [[arithmetic]] (e....
15: ...s from [[string theory]]. The mathematics arising from this immediately has relevance for the subject ...
23: ...ians wanted their theorems to follow mechanically from a few simple incontrovertible truths and for th...
28: ... That is, mathematical knowledge exists separate from the physical world. - Lightning (33113 bytes)
10: ...shared some similarity with lightning. [[Benjamin Franklin]] endeavored to test this theory by using a...
12: ... to a post with a [[silk]] thread. As time passed Franklin noticed the loose fibers on the string stre...
14: ... had conducted similar experiments in [[France]], Franklin had suggested the original high-object-with...
16: ...clothes singed, the engraver knocked out, the doorframe of the room split, and the door itself torn of...
18: Franklin also invented the [[lightning rod]], likely... - Bird (20345 bytes)
15: Birds range in size from the tiny [[hummingbird]]s to the huge [[Ostrich...
17: ....g. the [[Wandering Albatross]]). Some, such as [[frigatebird]]s, stay aloft for days at a time, even ...
57: Birds are generally considered to have evolved from [[Theropoda|theropod]] [[Dinosauria|dinosaur]]s...
59: The basal bird ''[[Archaeopteryx]]'', from the [[Jurassic]], is well-known as one of the f...
63: ...p]] structure as birds, birds actually originated from the [[saurischia]]n (lizard-hipped) dinosaurs, ... - Crossword (24761 bytes)
1: ...''crossword''' is the most common variety of word puzzle in the world. Modern crosswords take the form of...
8: ...quired to contain at least three letters. In such puzzles black squares, used to separate answers, are tra...
10: ...imes'' crossword are 15ױ5 squares, while weekend puzzles may be 21ײ1, 23ײ3 or 25ײ5.
12: ...ered either radially or in concentric circles. ''Free form'' crosswords have simple designs and are n...
14: ... are alike in construction, and the intent of the puzzle authors is to entertain with novelty, not to esta... - Albert Einstein (43065 bytes)
12: ...b|200px|Young Einstein before the Einsteins moved from Germany to Italy.]]
20: ...e school to let him go with a medical note from a friendly doctor, but this meant he had no secondary-...
22: ...r Maja was to later marry their son Paul, and his friend [[Michele Besso]] married their other daughte...
26: ...ed his scientific interests with a group of close friends, including Mileva. He and Mileva had a daugh...
37: ... that, in each case, Einstein boldly took an idea from theoretical physics to its logical consequences... - Archimedes (13735 bytes)
1: ...ong with possibly [[Isaac Newton|Newton]], [[Carl Friedrich Gauss|Gauss]], and [[Leonhard Euler|Euler]...
12: ...ns the length of the segment parallel to the axis from the vertex to the base. The vertex must be so ...
26: Apart from general physics, he was an [[astronomer]], and ...
46: :This is a Greek puzzle similar to [[Tangram]]. In this scroll, Archimede...
51: ...nd the distance between various celestial bodies. From the introductory letter, we also learn that Arc... - Photosynthesis (9830 bytes)
3: ...early all living things depend on energy produced from photosynthesis for their nourishment, making it...
6: ...ygen]] gas. The energy for these processes comes from photosynthesis. For instance, the over-all equ...
13: ...ant, [[wax]]y [[cuticle]], that protects the leaf from excessive absorption of light and evaporation o...
16: Algae range from multicellular forms like [[kelp]] to [[microsco...
18: ...chloroplasts are now considered to have developed from them. The other photosynthetic bacteria have a... - List of hobbies (5016 bytes)
66: ** [[Open source]] and the [[free software movement]]
179: ==[[Puzzle]]s==
180: * [[Jigsaw puzzle]]
181: * [[Crossword puzzle]]s
182: * [[Word seek puzzle]]s - Puzzle (1711 bytes)
1: ...zleExample.jpg|right|thumb|An example of a simple puzzle.]]
2: ...s of [[Japan]] monks used to write [[mathematical puzzle]]s on temple walls: see [[sangaku]].
4: ==Well known puzzles==
8: * [[Eight queens puzzle]]
9: * [[n-puzzle]] (a.k.a. Fifteen puzzle) - Tangram (4661 bytes)
1: '''Tangram''' is an ancient [[China|Chinese]] [[puzzle]].
16: The puzzler [[Sam Loyd]] devised many tangram puzzles.
19: The English word is built from TANG + GRAM.
21: [[Image:Tangram-man.png|framed|right]]
23: *[[Tiling puzzle]] - Sliding puzzle (2847 bytes)
1: ...', '''sliding block puzzle''', or '''sliding tile puzzle''' challenges a player to slide usually flat piec...
3: ...ard, are important parts of solving sliding block puzzles.
5: ...mple shows, some sliding puzzles are [[mechanical puzzles]].
6: ...nical fixtures are usually not essential to these puzzles, the parts could as well be tokens on a flat boa...
8: ... form a picture on-screen. The last square of the puzzle is then displayed automatically once the other pi... - Axolotls (8008 bytes)
19: ...strictly forbidden), the majority being descended from these same research specimens, even in the pet ...
23: ...ilable foods, including trout and salmon pellets, frozen or live [[bloodworm]]s, [[earthworm]]s, and [...
25: ...ld be done every week, with debris being siphoned from the bottom. Small gravel should be avoided, as ...
31: ... brains. They can also readily accept transplants from other individuals, including eyes and parts of ...
33: ...nd "xolotl" meaning dog. It also derives its name from the Aztec God of Death [[Xolotl]], who - accord... - Theories and sociology of the history of science (16096 bytes)
7: ...ndous government support and also ongoing support from the private sector. Available methods of commun...
9: ...their peers, though a number of scholarly critics from both inside and outside the scientific communit...
13: ...as created as an institution of the government of France [[1666]], meeting in the King's library. The ...
15: ...ost-Cold War era, a decline in government funding from many countries has been met with an increase of...
22: ... painting]]s depicted events, with no commentary. From 40,000 BC to 15,000 BC. - Scientific method (40667 bytes)
1: ... the form of [[theory|theories]]. [[Prediction]]s from these theories are tested by [[experiment]]. If...
6: ... of methods for scientific inquiry is indivisible from the development of science.
9: ...hilosophical ideas of this time were mostly freed from the constraints of everyday phenomena and commo...
13: ...dent ''verification''. In the [[17th century]], [[Francis Bacon]] attempted to describe a rational pro...
15: ...h wings, but rather hung with weights, to keep it from leaping and flying. Now this has never been don...
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