Just as in all other sports, there are many variables in volleyball which generate a huge number of unpredictable events. With physics and mathematics, a law and order can be given to such events, so ...

Many basketball players like to spin the ball on their fingers. It is some sort of juggling move that can be learned in a few days (see figure 1). To make the ball spin in balance on your fingers it ...

This is a preview. Log in through your library . Abstract A parabolic free boundary problem with an obstacle and a volume constraint is analyzed. The equation models slow motion of droplets on ...