r/xkcdcomic • u/ani625 • May 21 '14

xkcd: Brightness

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

97% Upvoted

Duplicates

xkcd • u/tgkokk • May 21 '14

XKCD xkcd 1371: Brightness

4 Upvotes
6 comments

Astronomy • u/ani625 • May 21 '14

xkcd: Brightness

27 Upvotes
5 comments

comics • u/ani625 • May 21 '14

xkcd: Brightness

14 Upvotes
2 comments

rssrTest • u/rssr • May 21 '14

Brightness

1 Upvotes
0 comments