What is a physical phenomenon ?
The Universal Units Calculator recognizes six root physical phenomena : • Length • Mass • Time • Electric Charge • Temperature • Currency Other physical phenomena are expressible by multiplying any combination of these root phenomena together, each being taken to any power. Many operations in The Universal Units RPN Calculator require that operands represent the same physical phenomenon. This does not mean that they have to be in the same units. For example, the sum of two lengths is a meaningful quantity, even if the two lengths are expressed in different units. However, the sum of a length and a time is not meaningful. (Multiplying the time by a speed would make it another length, and then a sum would be meaningful.
The Universal Units Calculator recognizes six root physical phenomena : • Length • Mass • Time • Electric Charge • Temperature • Currency Other physical phenomena are expressible by multiplying any combination of these root phenomena together, each being taken to any power. Many operations in The Universal Units RPN Calculator require that operands represent the same physical phenomenon. This does not mean that they have to be in the same units. For example, the sum of two lengths is a meaningful quantity, even if the two lengths are expressed in different units. However, the sum of a length and a time is not meaningful.
