You lean all the way back even partly upside down, by pulling with your hands, or pushing with your feet, and then release, and jump back up into position.
No more worries of Eli the Kohen-Priest from the book of Samuel, of falling back and breaking your nape.
attaching image in link.-- pashute, Jun 23 2014 Leaning a bit back with no worries https://www.flickr..../72157645671487432/see next image, for leaning back all the way [pashute, Jun 23 2014, last modified Jul 14 2014] And leaning back all the way https://www.flickr....-72157645671487432/get back up with no effort, just stick out your feet, or let go with your hands [pashute, Jun 23 2014, last modified Jul 14 2014] balance bird http://www.hiwtc.co.../38/01/50/15006.jpg [pashute, Jun 23 2014] Eli the Priest http://www.thebrick...he_ark/1s04_18.htmlActual images [pashute, Jun 23 2014] The leaning tower of Pisa http://www.redbubbl...epaired-by-canadianthe fixed version [pashute, Jun 23 2014, last modified Jul 17 2014] The Li Ning Power of Pizza http://uncyclopedia...ning_Tower_of_Pizza [pashute, Jun 23 2014] If you build it, they will recline.
pssst your first two links don't work.-- 2 fries shy of a happy meal, Jun 24 2014 Me no spika da googleplus. [edit: okay]-- FlyingToaster, Jun 24 2014 I'll c what I can do about the links. They were on picasaweb...-- pashute, Jul 05 2014 Can I have links to pictures that don't require signing up for social media to access?-- Voice, Jul 06 2014 OK thanks all! I fixed the image links, moved them to Flickr. I hope they are public now without the need to log in. Are they?-- pashute, Jul 14 2014 yes, thank you-- Voice, Jul 14 2014 random, halfbakery