The Duration is the timing between two beats/sounds
<span>Franklin Lacey and Meredith Willson</span>
Lee Friedlander's photographic series "The Little Screens" captured the period of time from 1961-1970 as television started to become more popular in American homes. He was able to show their importance, during a time when many people viewed them as unnecessary.
Matrilineality is the principle of descent in (15%) of the worlds societies- hope this helps :)