https://m.youtube.com/watch?v=ML4tw_...2&index=2&t=0s

Many of you will have heard of this amazing artifact. Essentially an astrological computer using gearing similar to modern watchmaking. The artifact was made over 2000 yrs ago which is simply mind blowing in itself but this series of videos shows just how advanced the item was both in terms of the knowledge required, the skills and tools used, and the sheer craftsmanship involved. I’m sure you will enjoy it - there are 7 videos done and I think 2 more to come. Enjoy