a long slender part, such as the portion of a long bone between the wider ends or extremities, the shaft of a hair and the central shaft of a feather.
maximum number of hours for 16- and 17-year-old minors is 4 hours on a school day (6. hours with a special variance), 8 hours on a Friday or any non-school day and not more. than 6 days per week. The maximum number of hours of work for 16- and 17-year-old. minors is 20 or 28 (with the optional special variance).
As in 2002, all state high school minimums ranged from 47 hours per day in 2004, except for Missouri, which placed three hours at the lower limit, and West Virginia with a policy of 3.75 hours per day (Cavell et al., 2005).