It ’s known that one of the simple ways to change your mood is to observe a natural regularity of motion such as tidal waves, a pendulum swing, a fire, etc. In our opinion the best results can be achieved while watching sand fall in an hourglass.
Short description: It ’s known that one of the simple ways to change your mood is to observe a natural regularity of motion such as tidal waves, a pendulum swing, a fire, etc. In our opinion the best results can be achieved while watching sand fall in an hourglass.