(DIR) xkcd - A Webcomic of Romance, Sarcasm, Math and Language.
 (DIR) Floodgap Gopher Fun and Games
        
       xkcd - A Webcomic - Angular Diameter Turnaround (2622)
        
       Image:
 (PNG) angular_diameter_turnaround.png
        
       Thank you to Katie Mack for teaching me about this effect, and to
       Janelle Shane for describing redshifts as 'like galaxies sinking
       into a pool of dilute blood,' which is how I'll see them from now
       on.
        
       Comics reproduced from www.xkcd.com under license.
 (HTM) xkcd License (WWW)
 (HTM) xkcd Web Site (WWW)
        
       Previous:
 (DIR) xkcd - A Webcomic - Mainly Known For (2621)
       Next:
 (DIR) xkcd - A Webcomic - Goofs (2623)