Working Model Of Antikythera - Just Amazing

I had an opportunity to watch this amazing video on how the Antikythera works. It is a mysterious clockwork thingy made up of many wheels (cogs) and was discovered more than a century ago in a shipwreck.

No wonder that they call this masterpiece as the world's first Computer! It was a built in calender, an astronomical reader and what not...

I would suggest you to watch this episode or a prologue on the Antikythera here and then watch the working model.