Difficult bowel movement. Bowel movements. Difficult bowel movement (symptom description): Difficult bowel movement is listed as a type of or related-symptom for symptom Bowel movements.
The first Unimate, a product of their new Unimation Corp., was hydraulically powered. Its control system relied upon digital control, a magnetic drum memory, and discrete solid-state control components. In 1961 the first Unimate was installed at a GM plant in Trenton, New Jersey, to assist a hot die-casting machine. Unimation would soon develop robots for welding and other applications. Patent Number 2,988,237 was the seed that spawned the robot industry.
But the term robot was not invented until 1921 when Karel Capek coined the term in the play R.U.R. (Rossum's Universal Robots). The term comes from the word robota, which is a Czech term for forced labor. In 1954, George Devol created the Unimate, an industrial robotic arm that lifts hot metal and stacks it.