Tensile strength is defined as a stress, which is measured as force per unit area. For some non-homogeneous materials (or for assembled components) it can be reported just as a force or as a force per unit width.
Answer Wiki. The practice of organizing to aggregate individuals' influence for economic reasons probably began with European craft guilds, although the master craftsmen were actually employers and capitalists. Trade unions or labor unions originated in England in the 1700s, but were outlawed until the 1800s.
The American Federation of Labor was founded in 1886 and led by  Samuel Gompers. The union resulted when groups of disenfranchised  craft workers from the Knights of Labor f â¦ ormed a new union.During  the first half of the 20th century, the AFL was the largest labor  union in the country.Donna Halper.he methods of the American Federation of Labor were boycotts and  strikes. They wanted higher wages and improvements in working  conditions including shorter work days.