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- Steel (28384 bytes)
8: ...take place in a fairly oxygen-free environment. Unlike copper and tin, liquid iron dissolves carbon q...
11: ... fairly soft metallic material that can dissolve only a small concentration of carbon (no more than 0....
21: ...osphorus]] make steel more brittle, so these commonly found elements must be removed from the ore duri...
28: ... the year [[1000]], the [[Thule]] people of [[Greenland]] began making [[harpoon]]s and other edged to...
46: ...lized cast iron, and quench-hardened steel, with only a few, probably ornamental, bronze weapons. - Mae Jemison (5527 bytes)
- Calligraphy (20084 bytes)
14: ... sound and meaning ideographically, kana express only sound without regard to meaning. Three types of ...
98: ...nce, they were usually used for secular purposes only.
121: ...rokes lean to the right rather than (as more commonly) to the left, making Nasta'liq writing particula...
130: ..., without much amplitude. It is the one most commonly seen. It's also considered a step up from the Na...
135: ...s in the western world. Being cursive by nature, unlike the [[Latin alphabet]], Arabic script is used ... - Greek language (35285 bytes)
44: Greek is spoken by about 12 million people mainly in [[Greece]] and [[Cyprus]] but also in many ot...
269: ...e" instead of the correct "give me", and it certainly is not an obligatory phonological rule of the Gr...
315: ...|ʝa}}/ (informal, literally "health"), you only say this to people that you know well. When you ...
475: ...http://www.sprachprofi.de.vu/english/gr.htm Free online resources for learners (both Ancient and Moder...
481: ...ttp://didymos.kypros.org/LearnGreek/ Learn Greek Online], for people who would like to learn the beaut... - Ptolemy (10609 bytes)
5: ...Arabic manuscripts (hence its familiar name) and only made available in Latin translation (by [[Gerard...
7: ...tral to the modern system of constellations, but unlike the modern system they did not cover the whole...
9: ...]] in the Roman empire at his time. He relied mainly on the work of an earlier geographer, Marinos of...
14: ...frica; Ptolemy was well aware that he knew about only a quarter of the globe.
16: ...scripts of Ptolemy's ''Geography'' however, date only from about 1300, after the text was rediscovered... - Geography (8541 bytes)
5: [[Geographer]]s not only investigate what is where on the Earth, but also...
104: ...erical methods peculiar to (or at least most commonly found in) geography. In addition to [[spatial a... - Pan pipes (2209 bytes)
4: ...emporary makers of panpipes will use a wax - commonly [[beeswax]] - to tune their new instruments. - Nile (13738 bytes)
30: ...e Nile originates from Ethiopia, but this runoff only happens in summer, when the great rains fall on ...
36: After the Blue and White Niles merge, the only remaining major tributary is the [[Atbara River]...
52: ... a number of others, Brown and Scaturro were the only ones to remain on the expedition for the entire ...
86: *[http://www.ancient-egypt-online.com/river-nile-facts.html Facts About The Nile... - Geology (12007 bytes)
- Age of the Earth (20052 bytes)
29: ...ulations. However, they assumed that the Sun was only glowing from the heat of its [[gravitational con...
37: ...his estimates were correct. The geologists could only suggest (correctly) that Kelvin didn't have all ...
59: ...as [[helium]] atoms. At the time, Rutherford was only guessing at the relationship between alpha parti...
77: ...ample, he assumed that the samples had contained only uranium and no lead when they were formed.
85: ... the die-hards in the geological community stubbornly resisted. They had never cared for attempts by p... - Alexander the Great (42049 bytes)
4: ..., [[356 BC]]–[[June 10]], [[323 BC]]), commonly known in the West as '''Alexander the Great''' o...
23: ...he coast held no major ports, so Alexander moved inland. At Pisidian [[Termessus]] Alexander humbled b...
29: ...ign (although he allowed those that wished to re-enlist as mercenaries in his imperial army). His thre...
60: ...from India, in which his men clamor for him to openly kiss the young man. "Bagoas [...] sat down close...
87: ...ezzar II|Nebuchadrezzar II of Babylon]]. He was only 33 years old. Various theories have been propose... - Pythagoras (10747 bytes)
23: ...thematikoi'' held that the ''akousmatikoi'' knew only the outer form of the doctrine, but they themsel...
31: ...ophical and mathematical training. Evidence certainly suggests that the Egyptians had advanced further...
39: ...e oath of the Pythagorean Brotherhood [http://www.nlm.nih.gov/hmd/greek/greek_oath.html].
52: ''Only a few relevant source texts deal with Pythagoras... - Astronomy (13970 bytes)
10: ...ronomy". Theoretical astrophysics is concerned mainly with figuring out the observational implications...
27: ...tragalactic astronomy]]: the study of objects (mainly galaxies) outside our galaxy.
49: In astronomy, [[information]] is mainly received from the detection and analysis of [[el...
71: In early times, astronomy involved only the observation and predictions of the motions o...
77: ... [[Milky Way]], as a separate group of stars was only proven in the [[20th century]], along with the e... - Sun (20830 bytes)
135: [[Image:SunLayers.png|thumb|left|220px|Structure of the Sun]]
147: The core is the only part of the Sun where an appreciable amount of h...
162: ...space and its energy escapes the Sun entirely. Sunlight has a [[black-body]] spectrum that is charact...
168: It is about 4,000 [[kelvin]]s. It is the only part of the Sun cool enough to support simple mo...
181: ...produced by the nuclear reactions in the Sun was only one third of the number predicted by theory, a r... - Asteroid (24334 bytes)
16: ...; both have diameters of ~500 km. 4 Vesta is the only main belt asteroid that is sometimes visible to ...
21: ...details of the [[visible spectrum|spectrum]] of sunlight they reflect.
30: ...'s surface material. Originally, they classified only three types of asteroids:
64: ...overed up to that point. Still, a century later, only a few thousand asteroids were identified, number...
69: ... constitute asteroid discovery: the observer has only found an [[apparition]], which gets a [[provisio... - Venus (planet) (31010 bytes)
3: ...uring the daytime, making it one of only two heavenly bodies that can be seen both day and night (the ...
7: The adjective ''Venusian'' is commonly used for Venus, but it is etymologically incorre...
14: ...nds in the upper atmosphere circle the planet in only 4 days, helping to distribute the heat.
16: ...ght back into space. This prevents most of the sunlight from ever heating the surface. Venus's [[Bol...
18: ... of force against obstructions. The clouds are mainly composed of [[sulfur dioxide]] and [[sulfuric ac... - Meditation (26064 bytes)
32: ...ows the practitioner to tap into the healing and enlightening energy coming from the life-giving womb ...
34: ...ple words, but invariably the deeper meaning can only be understood through regular practice.
39: ...nd is instead trained to be acutely aware of not only breathing, but all things that one comes to expe...
47: The Buddha achieved [[Bodhi|enlightenment]] while meditating under a [[Bodhi tree...
85: ...ut squashing or denying the emotion (which would only cause additional frustration). The trick is th... - Lightning (33113 bytes)
35: ...m several different objects simultaneously, with only one connecting with the leader and forming the d...
65: ... One special type of intracloud lightning is commonly called an anvil crawler. Discharges of electric...
71: ... which is nothing more than a leader stroke with only one return stroke.
93: ...s date back to at least [[1886]]. However, it is only in recent years that fuller investigations have ...
133: ...fficient energy strike the atmosphere on average only once per 50 seconds per square kilometer. Measu... - Nutrition (42689 bytes)
10: ...bsorbed matter is excreted in the [[feces]]. But only a minimal amount of digestive juice is eliminate...
14: ...ate and the post-digestion state. The effect may only be discernible after an extended period of time ...
24: ===Antiquity through Enlightenment===
35: ... [[François Magendie]] discovers that dogs fed only [[carbohydrates]] and [[fat]] lost their body [[...
79: ...cagon and other hormones to varying degrees, not only the amount of omega-3 versus omega-6 eaten but a... - Hubble Space Telescope (50930 bytes)
54: ...s can be clearly distinguished) would be limited only by [[diffraction]], rather than by the turbulenc...
88: ...quately withstand frequent passages from direct sunlight into the darkness of Earth's [[shadow]] which...
117: ... meant that images from the Space Telescope were only marginally better than the best images obtainabl...
163: ... old, more rigid arrays entered and left direct sunlight.
182: ...ll astronomy papers have no [[citation]]s, while only 2% of papers based on Hubble data have no citati...
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