File:Causality and Superluminal information flow.svg

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Original file(SVG file, nominally 186 × 183 pixels, file size: 121 KB)

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English: At time, t=0, Alice will send Bob a message he will receive before she sends it. The train is equipped with a hypothetical instantaneous signal delivery device. Two photons at the center C are sent to the front F and rear R to verify that the message is received the instant it is sent. Alice waits till the front reaches her to send the message that Bob had received a short while ago when the rear of the train passed him. The consequences of a prompt reply (from Bob to Alice) using a similar device is sufficient to convince most that superluminal communication is impossible. The small arrow in Alice's timeline marks the arrival time of this reply. See also File:Causality_and_Superluminal_information_flow1.svg
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Author Guy vandegrift and the authors of File:Emojione_1F468.svg, File:Emojione_1F469.svg, and File:Icon_train.svg

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Date/TimeThumbnailDimensionsUserComment
current23:32, 15 May 2016Thumbnail for version as of 23:32, 15 May 2016186 × 183 (121 KB)Guy vandegrift (talk | contribs)Adjusted size of letters. Added arrow to show when Alice might get her answer.
08:14, 14 May 2016Thumbnail for version as of 08:14, 14 May 2016186 × 183 (119 KB)Guy vandegrift (talk | contribs)t was crowding the time axis
08:10, 14 May 2016Thumbnail for version as of 08:10, 14 May 2016186 × 183 (119 KB)Guy vandegrift (talk | contribs)I have no idea how that line go up through the letters
07:51, 14 May 2016Thumbnail for version as of 07:51, 14 May 2016186 × 183 (120 KB)Guy vandegrift (talk | contribs)User created page with UploadWizard

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