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       xkcd - A Webcomic - Soniferous Aether (3238)
        
       Image:
       soniferous_aether.png
        
       Imagine you could ride alongside a sound wave. It would probably
       be pretty cool, right? We're putting in a departmental budget
       request to buy a really fast plane so we can check it out.
        
       Comics reproduced from www.xkcd.com under license.
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