All parts of culture do not change at the same pace. Sociologist william ogburn referred to this disparity as "cultural lag".
Culture lag is characterized as the time between the presence of another material creation and the making of proper modifications in comparing territory of non-material culture. This time is regularly long. It was more than fifty years, for instance, after the was concocted before it was utilized deliberately in workplaces. Indeed, even today, we may have a family framework better adjusted to a ranch economy than to a urban modern one, and atomic weapons exist in a conciliatory climate receptive to the nineteenth century.