PHYSICS 1L03 Lecture Notes - Australopithecus, Njtv, High-Level Shading Language
25 Jan 2014
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Lucy: a partial hominid skeleton, discovered at hadar, ethiopia, Africa in 1974: an early hominid genus, a female adult, 3. 5 feet tall, characterized by bipedal locomotion, earliest known bipedal prior to humans (~3. 2 million years) Lucy: a 40% complete skeleton of lucy indicates that she was bipedal. Was she: lucy"s entire skeleton was reconstructed from the remains that were discovered. Lucy: why do we think lucy was bipedal (walking upright), what requirement is needed for effective and efficient bipedal posture and locomotion, let"s compare between chimpanzee (quadruped, knuckle walking), and. Quadrupedalism vs. bipedalism: knuckle walking, human bipedal. Center of mass: representing a system of particles by an equivalent single particle: center of mass. Rigid object like cars, balls and so forth are systems of particles: the distance between any two points on a rigid body remains constant in time. The mass of an object can be distributed uniformly or non-uniformly.
