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As the forward foot lands, a microchip tells the rear foot to push off.
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It was important, Mr. Collins said, to bear in mind the way people move naturally. He said "the leg is analogous to a pendulum," which can either be let go to swing or driven exactly in a movement.
In the future some of their principles may combine with those used in sophisticated robots in which every angle is controlled.
Use the terms in the text to replace the underlined parts of the following sentences.It rocked gently until the poking stopped, stabilized itself and marched firmly across the level surface.
The 47th yearly conference of state governors which was held in Chicago in August of 1955 also expressed its extreme interest in the problems of mental illness and in the present inadequacy of state hospital systems.
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