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- Eye (21834 bytes)
9: ...ghly spherical, filled with a [[transparency (optics)|transparent]] gel-like substance called the [[vi...
142: ...s and changes shape to be more like a cone than a parabola - St. Peter's Basilica (17805 bytes)
22: ...y. Michelangelo's dome is not a hemisphere, but a parabola: it has a vertical thrust, which is made more emp...
97: ...her Catholic churches also possess "the same" relics. Along the base of the inside of the dome is writ... - Comet (30542 bytes)
7: == Physical characteristics ==
15: ...e compounds leaving behind heavy long-chain organics that tend to be very dark, like [[tar]] or crude ...
17: ...o emit [[X-rays]] [http://heasarc.gsfc.nasa.gov/docs/rosat/hyakutake.html]. These X-rays surprised res...
19: ==Orbital characteristics==
35: ...r indicating the order of their discovery.{{hnote|CSBN (1994)}} So Halley's Comet, the first comet to ... - Isaac Newton (23339 bytes)
2: ...ion]], laid the groundwork for [[classical mechanics]]. Newton also shares credit with [[Gottfried Lei...
4: ... but could also be [[hyperbola|hyperbolic]] and [[parabola|parabolic]]. He is also notable for his arguments...
23: ...wo years Newton worked at home on calculus, [[optics]] and [[gravitation]].
31: ... was elected [[Lucasian professor]] of [[mathematics]] in [[1669]]. Any fellow of Cambridge or Oxford ...
34: === Optics === - Archimedes (13735 bytes)
12: ...[secant line]], not necessarily orthogonal to the parabola's axis; "the same base" means the same "horizonta...
14: ...loat:right;padding:5px;text-align:center">[[Image:Parabola.png]]<br></div>
24: ... Newton|Newton]]. He invented the field of [[statics]], enunciated the law of the [[lever]], the law o...
26: Apart from general physics, he was an [[astronomer]], and [[Cicero]] writes ...
43: * ''The Quadrature of the Parabola'' - Arch (4239 bytes)
16: ... used by the Assyrians as early as 722 BC. The [[parabola|parabolic]] and [[catenary]] arches are now known... - Technetium (32113 bytes)
186: == Notable characteristics ==
241: ...es.{{inote|The CRC Handbook of Chemistry and Physics, 85th edition, The Elements}}
250: ...ter the creation of the nuclear waste.{{inote|Topics in current chemistry, vol 176, "Technetium in the...
252: ...to 1994 by atmospheric nuclear tests. {{inote|Topics in current chemistry, vol 176, "Technetium in the...
273: ...otope lying on that parabola. When there are two parabolas, that is, when the number of nucleons is even, i... - Timpani (31735 bytes)
20: ...emispheric]] bowls produce brighter tones while [[Parabola|parabolic]] bowls produce darker tones. Another f...
110: ...ll produce different pitches at different [[dynamics (music)|dynamic levels]].
188: == Related topics == - Dicaearchus (667 bytes)
1: ...metric]] constructions of a [[hyperbola]] and a [[parabola]] and worked mainly in the field of [[cartography... - Solar power (20128 bytes)
96: ...pean Solar Thermal Industry organization. Statistics, market situation...
106: ...are Solar Chimneys and Concentrating Solar Power (CSP) plants.
108: ====Concentrating Solar Power (CSP) plants====
109: ...org/csp_technology.htm Concentrating Solar Power (CSP) plants].
111: ...a a solar power plant [http://www.solarpaces.org/CSP_ESKOM.HTM is planned] with 4000 to 5000 heliosta... - Radar (16746 bytes)
2: ...l|250px|This long range radar [[antenna (electronics)|antenna]] (approximately 40m (130ft) in [[diamet...
28: ...til the introduction of high performance electronics, with older systems being accurate to perhaps a f...
34: ...he main ways to characterize a radar. As electronics have improved many radars now can change their PR...
37: ...siderably more accurate, even with older electronics, than timing the signal. By changing the frequenc...
41: ...t being the "ramp speed" selected by the electronics. The amount of shift is therefore directly relate...
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