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Re: Real Life Lightsabers Topic
Quote:
Originally Posted by Gardamorg
If that were true than when scientists use a laser canon, and they stop firing, there would be a thousand mile beam continuing to travel for years.
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Any light source will shoot a beam of photons for an infinite distance. If you switch on a laser and switch it off after 1 second, you will have a photon beam approximately 300,000km long. This beam will continue forever unless it hits something, where it is either absorbed, reflected, or deflected.
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