A comparison of the energy stored by different cells on the basis of cell volume: The amount of energy available from a battery is governed by: 1) The type of cell chemistry used. 2) The amount of chemical material available in the cell.
Economic materialism. Materialism is the importance a person attaches to acquiring and consuming material goods. The use of the term materialistic to describe a person's personality or a society tends to have a negative or critical connotation.
Pragmatism is the notion that meaning or worth is determined by practical consequences. It is closely akin to utilitarianism, the belief that usefulness is the standard of what is good. To a pragmatist/utilitarian, if a technique or course of action has the desired effect, it is good.