that is impressive. they uses some things that are not very reliable to make that one. the golf ball return, the dart, the slinky, and I'm sure a few others.
it takes alot alot alot of patience to do something like that,whew but it was awsome,i remember when the guys on mythbusters did something like it just not no where as big
I don't understand the drive to do them, but it must be a sense of completion regardless how menial the task. Talk about the long way to open the blinds...