How do you like to go up in a swing,
Up in the air so blue?
Oh, I do think it the pleasantest thing
Ever a child can do!
Child's Garden of Verses by Robert L. Stephenson...
http://youtu.be/vnDwvsVk_nc
Also presented recently at ICRA, Takahiro Kizaki and Akio Namiki from the Graduate School of Engineering at Chiba University in Japan demonstrated a system comprised of a ...