College Humor "Crazy Math" Video help

[Brain]

http://www.collegehumor.com/video:1929145

I don't get it :(
It might be due to some line somewhere not drawn straight, or the awkward way they move the pieces.
Can anyone explain it to me?

[Zyt3x]

If you look closely, the orange lines doesn't quite hit the red lines, or the green lines.. that might be one reason

[Brain]

yeah, that stands out, but would it make a difference of a whole square?

[WT-Fakawi]

I know the answer.

The dividing line is indeed, as Zyt3x mentions, not straight. In fact the whole object is a tad bigger (distorted) then the square it looks like, just enough to squeeze in another box (65).

Clever trick, I read the solution somewhere.

[Zyt3x]

yeah, that stands out, but would it make a difference of a whole square?Yes
It might not look like a lot, but if you gather all those 'points' it would eventually make up a whole square

[Boreas]

Sam Loyd's paradoxial dissection, check this out http://en.wikipedia.org/wiki/Missing_square_puzzle

[Brain]

good link Boreas. Thanks to others, I figured it was along the same lines as the "missing square puzzle". I find it to be a little more subtle, as the missing square one is more obvious. Also, the movement and chinese characters added to the mystery!