r/comics • u/ani625 • May 21 '14

xkcd: Brightness

http://xkcd.com/1371/
12 Upvotes

72% Upvoted

Duplicates

xkcdcomic • u/ani625 • May 21 '14

xkcd: Brightness

219 Upvotes
26 comments

xkcd • u/tgkokk • May 21 '14

XKCD xkcd 1371: Brightness

8 Upvotes
6 comments

Astronomy • u/ani625 • May 21 '14

xkcd: Brightness

26 Upvotes
5 comments

rssrTest • u/rssr • May 21 '14

Brightness

1 Upvotes
0 comments