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4Pi
4Pi The expression 4Pi may mean: System/4 Pi, an IBM family of avionics computers 4π = 12.56637..., the solid angle of a complete sphere measured in steradians This number-oriented article is a disambiguation page — a list of pages that otherwise might share the same title. If an article ...
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4Pi Microscope
4Pi Microscope A 4Pi microscope is a confocal microscope with two opposing lenses. It is used for high resultion imaging of fluorescence. It can be operated in three different ways: In a 4Pi microscope of type A, the coherent superposition of excitation light is used to generate the increased resolution. The ...
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4Pi-Mikroskop (translated from German)
4Pi-Mikroskop 4Pi-Mikroskop is in Microscope , which two Objective one used, those those Sample light up from the rear and from the front. It was developed at the beginning of the 90's at Max-Planck-Institut Goettingen. The enlargement ability of herkoemlichen Microscopes is limited by a natural border ...
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Image:Stamp Alexandretta 4pi.jpg
Image:Stamp Alexandretta 4pi.jpg Image File history File links Stamp_Alexandretta_4pi.jpg Scan of Alexandretta 4pi stamp of 1938, made by User:Stan ...
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Talk:Variable speed of light
... principle's (E1-E2)(T1-T2) > h/(4pi) to get h(f1-f2)(T1-T2) > h/4pi where (f1-f2) is the precision of ... we get (c1-c2) > w/(T1-T2)/4pi where w is the fixed wavelength (frequency ... can use (E1-E2)(T1-T2) > h/(4pi), which is not totally clear to me ...
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User:DonJStevens
... equal when the electron Compton wavelength is (4pi)times(3pi hG/c)exponent1/4 meters ... electron mass. electron Compton wavelength divided by [4pi(3Gm/c squared)] = 2pi seconds divided by ... to laboratory measured values. G=(Compton wavelength/4pi)cubed,times(1/2pi)squared,times(1 ...
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Observatory sun mountain (translated from German)
... Zweckverband observatory sun mountain and the company 4pi of systems - society for astronomy and information ... the enterprise more astronomically Fernrohre . Additionally has "4pi Systeme" with support by the association that ...
http://de.wikipedia.org/wiki/Sternwarte_Sonneberg - 20k - Cached (German) - Wikipedia (German) - Similar pages
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Simple pendulum (translated from French)
Simple pendulum Any heavy solid suspended around a horizontal axis in stable position hangs with its centre of gravity G located under this axis. That is to say O the projection of G on the axis. Let us draw aside G of its stable position of an angle \theta_0 \,
http://fr.wikipedia.org/wiki/Pendule_simple - 58k - Cached (French) - Wikipedia (French) - Similar pages
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Talk:Black hole/Archive 1
... with excess volume (e.g. more than 4pi/3 r^3 inside a spherical surface of 4pi r^2.) This is one way of ...
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Talk:Planck units
... h, or 4piG over G, or 1/4pi-epsilon0 over epsilon0, then we know which ... The electron mass will then be (h/4pi c) times (c/3pi hG)exponent 1 ...
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