We consider the aerodynamics of football, specifically, interaction between a ball in flight and ambient air. Doing so allows one to account for characteristic range trajectories balls flight, as well their anomalous deflections may be induced by striking either with or without spin. The dynamics viscous boundary layers is briefly reviewed, its critical importance on highlighted. Magnus effect ...

A 4-year-old boy presented with a congenital tail on the sacrococcygeal region.The like structure was so cute and bouncy in consistency, having no voluntary movement communication spinal cord.