Why...spring is loose?

[chixwithtrix]

With my friend's car up on jack stands and the suspension fully dropped the spring in the rear is loose...I can move it up and down no problem. Here is the really short vid showing you, there has to be something wrong here...what the heck?

http://www.rc-tvproductions.com/240/spring.MOV

[kcndizzle]

if it's a lowering spring or it's been cut, it's going to be shorter than the travel of the strut. you're fine

[chixwithtrix]

hm, I never figured that they would be that short...ah well sweet, thx