Image:Lightcone.png

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Lightcone.png‎ (252 × 365 pixel, file size: 8 KB, MIME type: image/png)

I drew this in Inkscape based on a diagram from A Brief History of Time. Given that it is such a simple diagram, and that I've redrawn it, I don't think it violates Stephen Hawking's copyright. Therefore I'm releasing it into the public domain.

Public domain This file has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. This applies worldwide.
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