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A tree house in the park of the Château de Langeais in the Loire Valley, France. A tree house, tree fort or treeshed, is a platform or building constructed around, next to or among the trunk or branches of one or more mature trees while above ground level. Tree houses can be used for recreation, work space, habitation, a hangout space and ...
A distinctive form of point, identified though lithic analysis of the way it was made, is often a key diagnostic factor in identifying an archaeological industry or culture. Scientific techniques exist to track the specific kinds of rock or minerals that were used to make stone tools in various regions back to their original sources.
Arrowheads are attached to arrow shafts to be shot from a bow; similar types of projectile points may be attached to a spear and "thrown" by means of an atlatl (spear thrower). The arrowhead or projectile point is the primary functional part of the arrow, and plays the largest role in determining its purpose. Some arrows may simply use a ...
The most common architectural house and home styles in America include colonial, Cape Cod, ranch, and more. Learn how to identify these house styles.
A Folsom projectile point. Folsom points are projectile points associated with the Folsom tradition of North America.The style of tool-making was named after the Folsom site located in Folsom, New Mexico, where the first sample was found in 1908 by George McJunkin within the bone structure of an extinct bison, Bison antiquus, an animal hunted by the Folsom people. [1]
Traditional target arrow (top) and replica medieval arrow (bottom) Modern arrow with plastic fletchings and nock An arrow is a fin-stabilized projectile launched by a bow.A typical arrow usually consists of a long, stiff, straight shaft with a weighty (and usually sharp and pointed) arrowhead attached to the front end, multiple fin-like stabilizers called fletchings mounted near the rear, and ...
Units are one of four designs - tree house, cabin, cave or A-frame. [41] Tree house units have 3 walls and an open entrance with catwalks connecting the cabins. The cave unit consists of platforms on the ground with no walls (two tree house style buildings are also in this unit). The A-frame unit has three buildings with screened in windows and ...
One’s biological age, which measures the body’s physiological state, may help predict who is at risk for developing colon polyps, a known risk factor for colorectal cancer.