British Agricultural Revolution far apart. Alternately seeds could be laboriously planted one by one using a hoe and/or a shovel. Cutting down on wasted seed was important because the yield of seeds harvested to seeds planted at that time was around four or five. The seed drill was introduced from China to Italy in the mid-16th century where it was patented by the Venetian Senate. Jethro Tull invented an improved seed drill in 1701. It was a mechanical seeder which distributed seeds evenly across a plot of land and at the correct depth. Tull's seed drill was very expensive and fragile and therefore
Drill instructor Drill Instructor is evaluated as well. These new drill instructors bear the burden of responsibility for breaking down a recruit's sense of self and selfishness, so that the more experienced drill instructors can focus the recruits on selflessness, obedience, and fraternity. After completing a few 13-week cycles, the drill instructor is moved up to the position of "Experienced Drill Instructor" (EDI), also called the "heavy", "drill hat" or "J Hat". The next step in a drill instructor career is becoming a "Senior Drill Instructor". Senior Drill Instructors hold a respected position which is distinguished by the wearing of a black