Assessing the Impact of Fertility Change and Demographic Masculinization on Population Structures in China and India

An automatic distributor of fish food for aquariums comprising a rotating container (30) for fish food, a cover (40), an electric motor (53) and transmission (54) for transmitting the motion to the rotating container (30). At the bottom (31) of the container (30) there is an housing (14) for the electric motor (53) and the transmission (54), and furthermore the rotation axis of the rotating container (30) is aligned with the motor axis of the electric motor (53).