cost - benefit measured by what should be given or completed or been through to get some thing; "the cost in human lifetime was great"; "the cost of success is hard work"; "what cost glory?" Encyclopaedia Britannica's editors oversee matter spots in which the

In many everyday situations, the Homes of light can be derived from the idea of classical electromagnetism, in which light is referred to as coupled electric and magnetic fields propagating by way of House to be a traveling wave. Nevertheless, this wave concept, developed in the mid-19th century