“Sperm + Egg = Me” Venn Diagram
By Khang Nguyen Tuan (Hat tip to Hey Oscar Wilde).
By Khang Nguyen Tuan (Hat tip to Hey Oscar Wilde).
By Tan Nuyen, via Flickr. (Hat tip to Hey Oscar Wilde)
Also categorized under “messing with your head.” Courtesy of Raymond Johnson.

Not sure of the source (all over the net), but for me – via Jay’s posterous.

See more of Keaton Stoos’ stuff here.
Also available as a t-shirt. By tenso GRAPHICS.
Here’s the start:
And to see it all in its one million glory, then just click here. (From Piday.org)
I remember seeing this in elementary school and thinking, “Whoa…” The remarkable thing is that it is still awesome.

Can’t find source for this one: from the internetz?

The “Giant Chalkboard” at Broome and Crosby in NYC currently has a growing math problem, full of cryptic but relevant numbers and figures. Can you follow it and maybe figure it out?
From the Giant Chalkboard

Get the t-shirt here.