Walking (also known as ambulation) is one of the main gaits of locomotion among legged animals, and is typically slower than running and other gaits. Walking is defined by an 'inverted pendulum' gait in which the body vaults over the stiff limb or limbs with each step. This applies regardless of the number of limbs - even arthropods with six, eight or more limbs. The word walk is descended from the Old English wealcan "to roll".
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China has a new surveillance tool that identifies citizens by how they walk
Chinese authorities have begun deploying a new surveillance tool designed to identify people by how they walk, or the shapes ...
