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• Arthur A Larson
  ...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 .../d², to F=2(m₁m₂)/d². Einstein's general relativity where gravity was due to mass making geodisics (paths in
  6 KB (1,077 words) - 12:29, 30 December 2016
• Principle of relativity
  ...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
• Bohm diffusion
  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
• Absolute space and time
  ...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 g
  15 KB (2,319 words) - 15:18, 19 July 2017
• Sloan Digital Sky Survey
  ...;5; and the imaging survey has been involved in the detection of [[quasar]]s beyond a redshift ''z''&nbsp;=&nbsp;6. ...esolution of 2048×2048 [[pixel]]s, totaling approximately 120 [[Megapixel]]s.<ref>{{cite web | title = Key Components of the Survey Telescope | publishe
  25 KB (3,589 words) - 12:34, 5 February 2018
• Albert A. Michelson
  ...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=htt
  24 KB (3,494 words) - 14:47, 19 July 2017
• Hubble Deep Field
  ...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 i
  33 KB (4,612 words) - 12:32, 5 February 2018
• Non-standard cosmology
  ....<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 un
  41 KB (6,072 words) - 19:16, 4 February 2018
• Atlas of Peculiar Galaxies
  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
• Max Planck
  [[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 &ndash; 4 October 1947) was
  46 KB (6,617 words) - 14:55, 19 July 2017
• Thomas Edison
  | birth_place = [[Milan, Ohio]], U.S. | death_place = [[West Orange, New Jersey]], U.S.
  105 KB (15,290 words) - 17:19, 16 December 2018
• History of special relativity
  {{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
  '''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 expansion
  62 KB (9,085 words) - 20:13, 4 February 2018
• Lorentz transformation
  ...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 with
  97 KB (14,188 words) - 15:44, 20 July 2017
• Incandescent light bulb
  ...ortable lighting such as table lamps, car [[headlamp]]s, and [[flashlight]]s, and for decorative and advertising lighting. ...amp|compact fluorescent]] bulb or 150&nbsp;lm/W for some white [[LED lamp]]s.<ref>[[Vincenzo Balzani]], Giacomo Bergamini, Paola Ceroni, ''Light: A Very
  104 KB (15,285 words) - 16:44, 16 December 2018