I found those one day so if they weren't revealed on the forum i hope you will enjoy.

First one is speed spray painting and the result is amazing

http://www.metacafe.com/watch/627693/the_1_minute_painting/

The second is smart use of 3D graphics:

http://www.metacafe.com/watch/435143/esc_animator_vs_animation/

And the third is realy amazing, regarding the hours spent on it:

here is a short review:

This incredible machine was built as a collaborative effort between the Robert M. Trammell Music Conservatory and the Sharon Wick School of Engineering at the University of Iowa. Amazingly, 97% of the machines components came from John Deere Industries and Irrigation Equipment of Bancroft Iowa, yes farm equipment!

It took the team a combined 13,029 hours of set-up, alignment, calibration, and tuning before filming this video but as you can see it was WELL worth the effort.

It is now on display in the Matthew Gerhard Alumni Hall at the University and is already slated to be donated to the Smithsonian.

Of course, this is actually 3D graphics

And here is the video (dont forget your speakers):

http://www.youtube.com/watch?v=MlVRdAU2-R0

both good but that second one is awesome! Thanks for sharing.

Simply amazing. Thanks..

Thank you for the post.