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File:Speed of light from Earth to Moon.gif

English: Scale model of the Earth and the Moon, with a beam of light traveling between them at the speed of light. It takes approximately 1.26 seconds.
Español: Modelo a escala de la Tierra y la Luna, con un rayo de luz viajando entre ellas a la velocidad de la luz. Le lleva aproximadamente 1.26 segundos.
Galego: Modelo a escala da Terra e a Lúa, con un raio de luz viaxando entre elas á velocidade da luz. Lévalle aproximadamente 1.26 segundos.
Source Made by English Wikipedian en:User:Cantus.
Author en:User:Cantus
( Reusing this file)
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Subject to disclaimers.

w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers.
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This licensing tag was added to this file as part of the GFDL licensing update.



If you see the beam taking more than 1.26 seconds to travel from Earth to Moon, then your browser is displaying it too slowly. See talk page for details.


  • IE8: Works in compatability and regular mode on 2GHz C2D
  • Firefox: Normal on AMD Athlon 64 X2 6400+ (3.2GHz) - Firefox 3.6
  • Firefox: Normal on Core i7 860 (2.93 Ghz) - Firefox 3.5.5
  • Safari: Works fine on Safari 4.0.2 (Tested: Safari for Windows 4.0.2 Build 530.19.1)
  • Chrome: Normal on 2 GHz Intel Core Duo and 3 Ghz Pentium 4
  • Opera: 10.20 - Normal even on Intel Atom


  • Firefox: Normal on 2 GHz Intel Core 2 Duo
  • Safari: Normal on 2 GHz Intel Core 2 Duo
  • OmniWeb: ??sadad
  • Opera: Normal on 2.66 GHz Intel Core 2 Duo
  • Chrome: Normal on 2.2 GHz Intel Core 2 Duo


  • Firefox: Normal on 2 GHz Intel Core 2 Duo - Firefox 3.5.5Xd
  • Konqueror: Slow (nearly 3 seconds) on 2 GHz Intel Core 2 Duo - Konqueror 4.3.2
  • Chrome: Normal on 2 GHz AMD Turion TL-60 - Chrome
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