published on: 2013-05-24 16:06:19
nomad-wonderer.tumblr.com/post/51230494989/
mexpwr: Fucken hot
mexpwr: Sexy as fuck (via TumbleOn)
science-junkie: Atomic weights revision changes periodic table
nomad-wonderer.tumblr.com/post/51265171405/
nomad-wonderer.tumblr.com/post/51281347797/