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- Timeline of invention (28171 bytes)
3: ...s ambiguity, the date of the first practical, fielded version of the invention is used here.
60: * [[Odometer]] : [[Ancient Rome|Rome]]: [[Archimedes]]?
66: ...ntury BC|200s BC]]: Compound [[pulley]]: [[Archimedes]]
74: * [[1st century]]: [[Rudder|Stern mounted rudder]] in [[History of China|China]]
83: * [[9th century|800s]]: [[Black powder|Gunpowder]] in [[History of China|China]] - List of inventors (14020 bytes)
11: *[[Archimedes]], (circa 287 BC-212 BC), [[Greece]]
12: *[[Manfred von Ardenne]], (1907-1997), [[Germany]]
14: ...s]],(1927 - June, 1996)of the [[Canada|Canadian]] Department of Agriculture — instant mashed po...
19: *[[Robert Baden Powell]]- scouting movement
22: ... U.S. solar inventor and developer; architectural designer. - Computer (32773 bytes)
3: ...mputer program|programming]]) a computer can be made to represent some aspect of a problem or part of ...
4: The discipline which studies the theory, design, and application of computers is called '''[...
8: ...s, photons, quantum particles or any other well-understood physical phenomenon. Although computers ha...
10: .... For example, electron flows might be used to model the flow of water in a dam. Such ''[[analog sig...
12: ...is first translated into mathematical terms by rendering all relevant information into the [[binary]] ... - Electricity (13894 bytes)
1: ...s law]]. Some electrical effects are discussed under [[electrical phenomenon]] and [[electromagnetism...
8: ...ian]] walls, such as the [[Dendera light]]. Other devices discovered in Egyptian and other archaeologi...
10: ...tist)|William Watson]], experimenting with the Leyden jar, discovered in [[1747]] that a discharge of ...
11: ...:Electricity clipart.jpg|thumb|250px|Clipart provided by [http://classroomclipart.com Classroom Clip A...
12: ... frequently) or [[Ebenezer Kinnersley]] of [[Philadelphia]] (less frequently) who created the conventi... - Gallium (9500 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
5: {| align="center" border="0"
26: | [[Density]], [[Mohs hardness scale|Hardness]]
45: | [[van der Waals radius]]
54: | [[Oxidation state]]s ([[Oxide]]) - Germanium (8776 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
5: {| align="center" border="0"
26: | [[Density]], [[Mohs hardness scale|Hardness]]
43: | [[van der Waals radius]]
52: | [[Oxidation state]]s ([[Oxide]]) - Molybdenum (10247 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
5: ...an="2" align="center"|[[niobium]] – '''molybdenum''' – [[technetium]]
17: | molybdenum, Mo, 42
25: | [[Density]], [[Mohs hardness scale|Hardness]] - Nitrogen (10073 bytes)
1: {{Elementbox_header | number=7 | symbol=N | name=nitrogen | left=[[c...
18: ...smn;'''3''', 5, 4, 2<br />(strongly [[acid]]ic oxide) }}
24: {{Elementbox_vanderwaalsrad_pm | [[1 E-10 m|155]] }}
36: ... such as [[ammonia]], [[nitric acid]], and [[cyanide]]s.
37: ...|thumb|150px|left|Chemistry Clipart .Clipart provided by [http://classroomclipart.com Classroom Clip A... - Silicon (13233 bytes)
1: {{Elementbox_header | number=14 | symbol=Si | name=silicon | left=[[...
10: {{Elementbox_density_gpcm3nrt | 2.33 }}
11: {{Elementbox_densityliq_gpcm3mp | 2.57 }}
20: ...{Elementbox_oxistates | 4<br />([[amphoteric]] oxide) }}
26: {{Elementbox_vanderwaalsrad_pm | [[1 E-10 m|210]] }} - Computer display (4276 bytes)
1: ... other senses of "monitor" meaning "machine-level debugger" or "thread synchronization mechanism". Com...
6: * [[Cathode ray tube]] (CRT)
9: * [[Video projector]]
11: ...exibility: it can often handle all [[Resolution#Video_monitors|resolution]]s from 640 by 480 [[pixel]]...
13: The sharpness of a display is described by its [[dot pitch]]. In general, the low... - Inorganic chemistry (2930 bytes)
1: ...ch are termed organic compounds and are studied under the separate heading of [[organic chemistry]]. T...
4: ... chemical reactions: [[combination reaction]]s, [[decomposition reaction]]s, [[single displacement rea...
7: Major branches of inorganic chemistry include
13: Commercially important inorganic substances include [[Semiconductor|silicon chips]], [[transistor|tra...
17: ...corrin]] and protein) and a metal, [[cobalt]], bonded to carbon. - Tim Berners-Lee (7363 bytes)
2: ...de Web Consortium]], which oversees its continued development.
6: ...sity]], where he built a [[computer]] with a [[soldering iron]], [[transistor-transistor logic|TTL]] [...
12: In [[1980]], while an independent contractor at [[CERN]], Berners-Lee proposed a ...
14: ... first browser (called '''[[WorldWideWeb]]''' and developed on [[NeXTSTEP]]) and the first web server ...
18: ...It provided an explanation about what the World Wide Web was, how one could own a browser, how to set ... - Physics (25628 bytes)
2: ...ear particles from which all ordinary matter is made ([[particle physics]]) to the behavior of the mat...
4: ...of the underlying molecules, which are accurately described by areas of physics such as [[quantum mech...
6: ...cs, known as [[mathematical physics]], devoted to developing the mathematical structure of physical th...
15: ...hich no practical experimental test has ever been devised.
19: ...research into more specialized topics, and any student of physics, regardless of his or her specializa...
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