The Bipedal locomotion reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Bipedal locomotion

Bipedal locomotion consists of walking on two feet (as opposed to four). Humans are capable of performing such motion because their spine is s-curved and their heels are round.

Human walking is composed of several seperate processes.

• rocking rocking back and forth between feet
• pushing with the toe to maintain speed
• combined intruption in rocking and ankle twist to turn
• shortening and extending the knees to prolong the "forward fall"

Engeneering

Engeneers who study bipedal walking describe it as an repetedly interupted fall.

In recent years Honda and Sony have developed mechanical walkers. See Robot

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