Mechanization in 1801, displacing the centuries-old hand method of making individual sheets of paper. One of the first mechanical devices used in agriculture was the seed drill invented by Jethro Tull around 1700. The seed drill allowed more uniform spacing of seed and planting depth than hand methods, increasing yields and saving valuable seed. Mechanized agriculture greatly increased in the late eighteenth and early nineteenth centuries with horse drawn reapers and horse powered threshing machines. By the late nineteenth century steam power was applied to threshing and steam tractors appeared. Internal combustion began being used for tractors in the early twentieth
Mozambique Drill spinal cord. Rousseau related the story to an acquaintance, small arms expert Jeff Cooper, founder of the Gunsite Academy shooting school, who incorporated the "Mozambique Drill" into his modern technique shooting method. The Mozambique Drill was incorporated in the Gunsite curriculum from the late 1970s. In 1980, two Los Angeles Police Department SWAT officers, Larry Mudgett and John Helms, attended pistol training at Gunsite and received permission from Cooper to teach the technique to the LAPD, and to rename it the Failure Drill (concerned that "Mozambique" might have racist overtones). The Mozambique Drill is intended to ensure that the target