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Introduction Spear thrower = atlatl = woomera = propulsore = propulseur Efficient propulsion of a lightweight projectile

Introduction Spear thrower = atlatl = woomera = propulsore = propulseur Efficient propulsion of a lightweight projectile

Dynamics of Spear Throwing presented to The American College of Sports Medicine by Richard Baugh, May 30, 2003, based on a paper published in the American Journal of Physics, 71, (4), April 2003. Pp 345 - 350. Introduction Spear thrower = atlatl = woomera = propulsore = propulseur

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1.28k views • 22 slides
Early Hominids

Early Hominids

Early Hominids. What are hominids?. Take your best guess! What do you think they looked like? Could they help you save money on your car insurance?. Early Hominids. Scientists called prehistoric humans hominids Scientists that study prehistoric humans are called Paleoanthropologists

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592 views • 15 slides
Investigating the past

Investigating the past

Investigating the past. Studying History involves investigating what happened in the past and why. People who study history are a lot like detectives conducting an investigation. They ask questions, study evidence for clues, and form hypothesis. Investigating the past.

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488 views • 14 slides
anasazi

anasazi

By Austin Hackett and Aaron Wheeler. anasazi. Location. The Anasazi lived in the southwestern United States. It now called the Four Corners. Present day states are Utah, Colorado, Arizona and New Mexico. .

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380 views • 12 slides
Early Hominids

Early Hominids

Early Hominids. Mrs. Hubbard Purple team. Australopithecus A farensis. 3 to 4 million years ago Lucy Biped (walked on two legs) Brain was one third the size of our brains No tools ever found 3 feet tall. Homo Habilis : Handy man. 1 to 2 million years ago

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217 views • 7 slides

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