In 1908, the supreme court ruled in muller v. oregon that

Female wage earners work should be limited to ten ( 10 ) hours a day

Explanation:

In 1908 the Supreme court ruled in legal case  Muller vs Oregon . the supreme court ruled in the favor of the Oregon law that will see Female wage earners limit their daily working hours to 10 hours a day.

The Judgement was made by the supreme court during the progressive Era in the United states of America. after this judgement other states passed wage and work hours laws as well in their various states but this judgement was overturned/ruled as unconstitutional by the supreme court in the case Adkins vs Children hospital

the hollywood film industry of 1950 was threatened on several different fronts. television broadcasting was rapidly becoming the dominant entertainment medium in the united states. the paramount anti-trust consent decree requiring separate ownership for production companies and theater chains had gone into effect on 1 january 1950. large numbers of young men and women were marrying, having children, and moving to the suburbs, which affected the viability of downtown first-run movie theaters. foreign revenues were endangered by protectionist tactics including quota systems, high taxes, and blocked funds. finally, the morality and patriotism of hollywood films and filmmakers were under attack from government, religious, and citizens' groups.

explanation:

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.