A chicken is shown to be able to keep its head at a fixed location in the space, regardless its body position, how did it do it? or, what superb biological mechanism in chickens (or birds) make them able to do this?
Mercedes-Benz is defining a level of ride comfort with Magic Body Control, the world’s first suspension system with “eyes”
please, see the links.
https://www.youtube.com/watch?v=bLIU18s4cy8
http://www2.mercedes-benz.co.uk/content/unitedkingdom/mpc/mpc_unitedkingdom_website/en/home_mpc/passengercars/home/new_cars/models/s-class/_w222/facts_/magic-body-control.html
This is an interesting question with many possible answers, depending on the mathematics and control engineering used.
As a sidelight, see
Katherine Aravanitaki, cited in
http://www.cs.uu.nl/docs/vakken/msmt/lectures/Games_Music_FirstLectureWeb.pdf
The music of the video is essential for the advertisement because the chickens
move according to the lyrics and music. The song is
effective because it points out the movements of the chicken and send a
clear message that the cars can change direction easily and effectively.
For a capsule view of the engineering that goes into magic body control, see page 20 in
http://www.dpncanada.com/images/stories/2014/February/dpn_feb_2014.pdf
More to the point, the mathematics for magic body control is given in beautiful detail in
T. Bedarff, P. Hedrich, P. Pelz, Design of an active air spring damper, Technische Universitaet Darmstadt, staring on page 357 in
ftp://cerberus.ifas.rwth-aachen.de/Veroeffentlichungen/IFK2014/9.%20IFK%20-%20Proceedings%20Vol.3.pdf
The location of the chicken head can be described mathematically as a fixed point in a moving reference frame of coordinates.
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