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- Timeline of invention (28171 bytes)
1: This is a chronological list of [[invention]]s.
3: ...nvented in an impractical form many years before another inventor improves the invention into a practi...
96: * [[1128]]: [[Cannon]] in [[History_of_China|China]]
99: ...lasses|Eyeglasses]] in [[Italy in the Middle Ages|Northern Italy]]
130: * [[1709]]: [[Piano]]: [[Bartolomeo Cristofori]] - List of inventors (14020 bytes)
7: {{compactTOC}}__NOTOC__
26: *[[Arnold O. Beckman]], (1900 - 2004), [[pH]] meter
32: *[[Katherine Blodgett]], (1898-1979) — nonreflective [[glass]]
34: *[[Joseph-Armand Bombardier]] — [[snowmobile]]
40: ... and [[United States|USA]] — [[rocket]] technology - Capacitor (29664 bytes)
16: ...re usually expressed in microfarads (µF), nanofarads (nF) or picofarads (pF).
18: ... [[permittivity]] of the [[dielectric]] (that is, non-[[electrical conduction|conducting]]) substance ...
45: ...pes. Adjustable versions have stability issues. Another figure of merit for analog components is stab...
52: ...P0 means that the graph is flat and the device is not affected by temperature changes.
54: ... Typical 3300 pF to 0.33 µF, 10%. Good for non-critical coupling, timing applications. Subject ... - Computer mouse (29399 bytes)
13: ...ple, head-mounted devices attached to the chin or nose --- but ultimately, the mouse won out because o...
15: ...ane. Engelbart received [[patent]] US3541541 on [[November 17]], [[1970]] for a ''"X-Y Position Indica...
24: ... on its underside, paired with a [[light-emitting diode]] to illuminate the surface. Early optical mice,...
26: ...two [[axis|axes]]. For example, the Agilent Technologies ADNS-2610 optical mouse sensor will process...
28: Demand for advances in optical mouse technology comes in large part from competitive [[first-... - Modem (21628 bytes)
7: ...optic fiber]]s. Most intercontinental data links now use optic modems transmitting over [[submarine c...
9: ...ans of transmitting analog signals, from driven [[diode]]s to [[radio]].
12: ...managed availability and scheduling. The system, known as [[Sabre (computer system)|Sabre]], is the di...
14: ...60s]] commercial computer use had bloomed, due in no small part to the developments above, and in [[19...
19: ...e set or wall jack, and the computer was "smart" enough to bypass the phone and dial the number direct... - Antimony (9093 bytes)
40: | [[van der Waals radius]] || no data
43: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>4[[d-orbital|d]]<sup>10</sup> 5[[s-orbital|s]...
62: | 18.19 [[scientific notation|×]]10<sup>-6</sup> [[cubic metre per ...
126: ...perature and pressure|STP]] are used except where noted.</font>
128: ...ite metal. Yellow and black antimony are unstable non-metals. Antimony is used in flame-proofing, [[pa... - Arsenic (12497 bytes)
42: | <nowiki>[</nowiki>[[argon|Ar]]<nowiki>]</nowiki>3[[d-orbital|d]]<sup>10</sup> 4[[s-orbital|s]...
61: | 12.95 [[scientific notation|×]]10<sup>-6</sup> [[cubic metre per ...
138: ...perature and pressure|STP]] are used except where noted.</font>
140: ...nd [[atomic number]] 33. This is a notorious poisonous [[metalloid]] that has three [[allotropy|allotr...
142: == Notable characteristics == - Gallium (9500 bytes)
49: | <nowiki>[</nowiki>[[argon|Ar]]<nowiki>]</nowiki>3[[d-orbital|d]]<sup>10</sup> 4[[s-orbital|s]...
72: | 11.80 [[scientific notation|×]]10<sup>-6</sup> [[cubic metre per ...
133: ...perature and pressure|STP]] are used except where noted.</font>
135: ...semiconductor]], most notably in [[light-emitting diode]]s (LEDs).
137: == Notable characteristics == - Germanium (8776 bytes)
44: | no data
47: | <nowiki>[</nowiki>[[argon|Ar]]<nowiki>]</nowiki>3d<sup>10</sup> 4s<sup>2</sup> 4p<sup>2</sup>
70: | 13.63 [[scientific notation|×]]10<sup>-6</sup> [[cubic metre per ...
160: ...perature and pressure|STP]] are used except where noted.</font>
162: ...to [[tin]]. Germanium forms a large number of organometallic compounds and is an important [[semicondu... - Nitrogen (10073 bytes)
2: {{Elementbox_series | [[nonmetal]]s }}
26: {{Elementbox_magnetic | no data }}
36: ...orless, tasteless and mostly [[inert]] diatomic [[non-metal]] gas, nitrogen constitutes 78 percent of ...
38: == Notable characteristics ==
39: Nitrogen is a [[non-metal]], with an [[electronegativity]] of 3.0. ... - Rubidium (10211 bytes)
44: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>5s<sup>1</sup>
67: | 55.76 [[scientific notation|×]]10<sup>-6</sup> [[cubic metre per ...
187: ...perature and pressure|STP]] are used except where noted.</font>
192: == Notable characteristics ==
196: ...s for [[space vehicle]]s (but [[caesium]] and [[xenon]] are more efficient for this purpose). Other po... - Solar cell (27643 bytes)
1: ... The field of research related to solar cells is known as [[photovoltaics]].
19: ...e light power input. Ideally, near the equator at noon on a clear day, the solar radiation is approxim...
22: ...ut a substantial waste of refined silicon. Most monocrystalline panels have uncovered gaps at the corn...
23: ...s that cover a greater fraction of a panel than monocrystalline cells, and this compensates for their ...
24: ...ery little silicon waste since this approach does not require sawing from ingots.
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