Fake Mathematical Proofs
Not being very mathematically inclined, these had me puzzled for a while. The first proof shows that 64=65
. It's quite convincing, until you actually get graph paper out (like I did) and try to do it yourself. Then you'll discover that the parts don't match up as nicely as they do in the animation.
A more complicated fake proof can be found here, where 1 is shown to equal 2
. I started to go glassy-eyed when I began to analyze the equation, so I quickly broke down and peeked at the answer explaining why the proof is wrong. (via Metafilter
Commenting is no longer available in this channel entry.