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- ...not know how I was going to finish it, but it would come, seemingly on it's own. It was like another intelligence was guiding my hand. I even tried it .../d<sup>2</sup>, to F=2(m<sub>1</sub>m<sub>2</sub>)/d<sup>2</sup>. Einstein's general relativity where gravity was due to mass making geodisics (paths in6 KB (1,077 words) - 12:29, 30 December 2016
- ...y (as in [[Newtonian mechanics]]) or explicitly (as in [[Albert Einstein]]'s [[special relativity]] and [[general relativity]]). ...as they do to another. According to a theoretical result called [[Noether's theorem]], any such symmetry will also imply a [[Conservation law (physics)13 KB (1,945 words) - 11:14, 5 July 2017
- Early [[fusion energy]] machines appeared to behave according to Bohm's model, and by the 1960s there was a significant stagnation within the field ...e there would be no hope of achieving practical [[fusion energy]]. In Bohm's original work he notes that the fraction 1/16 is not exact; in particular "12 KB (1,921 words) - 12:54, 6 February 2018
- ...m]], where he exploits the concept of immobile sphere of stars.<ref>Robert S. Westman, ''The Copernican Achievement'', University of California Press, 1 ...or because they rotate relative to the universe itself according to [[Mach's principle|Mach]], or because they rotate relative to local [[Geodesics in g15 KB (2,319 words) - 15:18, 19 July 2017
- ...;5; and the imaging survey has been involved in the detection of [[quasar]]s beyond a redshift ''z'' = 6. ...esolution of 2048×2048 [[pixel]]s, totaling approximately 120 [[Megapixel]]s.<ref>{{cite web | title = Key Components of the Survey Telescope | publishe25 KB (3,589 words) - 12:34, 5 February 2018
- ...isher=Société des sciences et des lettres de Łódź|page=162|quote=Michelson's biographers stress, that our hero was not conspicuous by religiousness. His ...rd.edu/abs/2002JAHH....5..165S|title=Nineteenth century astronomy at the U.S. Naval Academy | bibcode=2002JAHH....5..165S}}</ref><ref>{{cite web|url=htt24 KB (3,494 words) - 14:47, 19 July 2017
- ...e was assembled from 342 separate exposures taken with the Space Telescope's [[Wide Field and Planetary Camera 2]] over ten consecutive days between Dec The field is so small that only a few foreground [[star]]s in the [[Milky Way]] lie within it; thus, almost all of the 3,000 objects i33 KB (4,612 words) - 12:32, 5 February 2018
- ....<ref>See [[Planck (spacecraft)#2015 data release|the Planck Collaboration's 2015 data release]].</ref> ...contracting (as well as stationary but unstable universes). When [[Hubble's Law]] was discovered, most astronomers interpreted the law as a sign the un41 KB (6,072 words) - 19:16, 4 February 2018
- These are galaxies that look like a stretched-out S shape (or like the integral sign used in [[calculus]]). Some objects, such ...148 (2008-04-24).jpg|thumb|300px|Interacting galaxy pair Arp 148 ([[Mayall's Object]])]]76 KB (10,108 words) - 13:04, 4 February 2018
- [[Planck constant]]<br>[[Planck postulate]]<br>[[Planck's law of black body radiation]]<br>[[Third law of thermodynamics]] ...dictionary.reference.com/browse/planck "Planck"]. ''[[Random House Webster's Unabridged Dictionary]]''.</ref> 23 April 1858 – 4 October 1947) was46 KB (6,617 words) - 14:55, 19 July 2017
- | birth_place = [[Milan, Ohio]], U.S. | death_place = [[West Orange, New Jersey]], U.S.105 KB (15,290 words) - 17:19, 16 December 2018
- {{Wikisource portal|Relativity|Historical Papers on Relativity}} ...eveloped form in the work of [[James Clerk Maxwell]]. According to Maxwell's theory, all optical and electrical phenomena propagate through that medium,130 KB (18,278 words) - 13:48, 14 February 2019
- '''Hubble's law''' is the name for the observation in [[physical cosmology]] that: Hubble's law is considered the first observational basis for the [[metric expansion62 KB (9,085 words) - 20:13, 4 February 2018
- ...ons''') are [[coordinate transformation]]s between two [[coordinate frame]]s that move at constant velocity relative to each other. The transformations |title=[[s:Electromagnetic phenomena|Electromagnetic phenomena in a system moving with97 KB (14,188 words) - 15:44, 20 July 2017
- ...ortable lighting such as table lamps, car [[headlamp]]s, and [[flashlight]]s, and for decorative and advertising lighting. ...amp|compact fluorescent]] bulb or 150 lm/W for some white [[LED lamp]]s.<ref>[[Vincenzo Balzani]], Giacomo Bergamini, Paola Ceroni, ''Light: A Very104 KB (15,285 words) - 16:44, 16 December 2018