Deletion of Bouncing ball dynamics

Comment: The nomination seems to want to clear the way for a rival draft and this obviously violates .  If the nominator feels they can do better then they are free to amend the page ''in situ'' using ordinary editing.  The case of the sinusoidally-driven table appears in numerous sources, including ''https://books.google.co.uk/books?id=tjTaoBjYH64C&pg=PT101 Vibro-impact dynamics''; ''https://books.google.co.uk/books?id=YUABBQAAQBAJ&pg=PA397 Applied Non-Linear Dynamical Systems''; ''https://books.google.co.uk/books?id=D4HqCAAAQBAJ&pg=PA125 Nonlinear Dynamics in Engineering Systems''; ''https://books.google.co.uk/books?id=p_FpDQAAQBAJ&pg=PA165 Chaotic Systems''.  Our editing policy is to |preserve successive drafts, not to delete rivals in order to drive them off
Stance: keep
Cited policy: Wikipedia:Ownership of content (WP:OWN||WP:PRESERVE)