*promote

Self promoting this video and sending it back into the queue for one more try; last queued Tuesday, December 31st, 2013 10:19am PST - promote requested by original submitter SFOGuy.

Oh, if someone wants the actual Physic's explanation and not just the Art of the Drop!

http://videosift.com/video/Slinky-Drop-Answer

I like the information explanation: The bottom of the slinky doesn't know its falling until the top bit tells it to

It seemed simple to me, the 'upward' force created by holding the top of the spring collapses at 9.8m per second per second. This equals the force of gravity on the portion not yet collapsed. With the forces canceling each other out, there's no movement.
A ball will fall faster, not due to any spring force but due to simple air resistance, which is higher on a spring than a ball. If done in a vacuum they should fall at the same rate (measured at their center of gravity).

The implication is that the slinky has the ability to 'know' anything.
I feel it would be much better to say the bottom of the slinky doesn't react until the force acting on it is no longer equal and opposite to the force of gravity instead of personifying the slinky and the forces acting on it in order to make a non-apt analogy. I was always bothered by that kind of over-simplification in science class and often had to correct the teacher when the analogy fell apart.

I assumed it was because of the Jedi mind powers of the guy in the suit...

*timeshift *music

Adding video to channels (Music, Timeshift) - requested by ant.

*downunder

Adding video to channels (Downunder) - requested by maatc.

Later https://www.youtube.com/watch?v=V8szWccJvb4