Thomas Edison: How to Electricute an Elephant

See here for a video of an experiment Thomas Edision conducted in 1903 in an attempt to prove AC current is more powerful than DC current.

The video after the jump is of a graphic nature and is horrible quality(What do you expect from video taken in 1903).

To reinforce the execution, Topsy was fed carrots laced with 460 grams of potassium cyanide before the deadly current from a 6,600-volt AC source was sent coursing through her body.