Difference between revisions of "Speed of light"

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==Consequences of the Speed of Light==
 
==Consequences of the Speed of Light==
  
You are going to have to sacrifice scale on some level.Either you will have an etmerxely huge sun, or a miniscule Mercury.You will also have quite a problem wiht the distance scale  Here are the scales:Distances (in AU)Sun = 0Mercury = 0.39Venus = 0.72Earth = 1.00Mars = 1.52Jupiter = 5.20Saturn = 9.58Uranus = 19.23Neptune = 30.04Sizes (earth idameter)Me = 0.382V = 0.949E = 1.000Ma = 0.532J= 11.209S= 9.449U = 4.007N = 3.883So, you will need candy that will vary in size from 4/10 (in diameter) the size of whatever you use as the earth, to 11x larger.If you used an M&M for earth, picture putting 11 of them side by side  for the equivalent of Jupiter  and then think about cutting that M&M in half (actually a little less, closer to 1/3) for the size of Mercury.
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===Communication===
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[[Humans]] have discovered methods to communicate over great distances using electromagnetic (EM) radiation, such as radio waves and lasers. On Earth, distances are short enough that these methods seem instantaneous. On [[Mars]] and other parts of the [[solar system]], communication with Earth involves a time delay, based on the time it takes the EM radiation to travel. The delay between Earth and Mars varies from 3 minutes to 22 minutes (between about 180 to 1340 seconds depending on the postition of planets and resulting distance). For two way comunication (request - answer) time is doubled.
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To provide uninterupted communications, a group of communication sattelites will be necessary (placed in the orbit around the sun) - due different orbital speeds of both planets, for a period of time sun will be possitioned directly between both planets, blocking dirrect communications.
  
 
==See also==
 
==See also==

Revision as of 05:36, 25 July 2012

Definition

The Speed of Light (or c) is the speed at which a photon (an "energy packet" of electromagnetic radiation) travels in a vacuum.

Values

The exact measurement for the speed of light is 299,792,458 meters per second, in the following values, the speed of light will use values based on the rounded 300,000,000 m/s.

Meters per second:

Kilometers per second:

Miles per second:

Consequences of the Speed of Light

Communication

Humans have discovered methods to communicate over great distances using electromagnetic (EM) radiation, such as radio waves and lasers. On Earth, distances are short enough that these methods seem instantaneous. On Mars and other parts of the solar system, communication with Earth involves a time delay, based on the time it takes the EM radiation to travel. The delay between Earth and Mars varies from 3 minutes to 22 minutes (between about 180 to 1340 seconds depending on the postition of planets and resulting distance). For two way comunication (request - answer) time is doubled.

To provide uninterupted communications, a group of communication sattelites will be necessary (placed in the orbit around the sun) - due different orbital speeds of both planets, for a period of time sun will be possitioned directly between both planets, blocking dirrect communications.

See also