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A Typology and Nomenclature for New York Projectile Points, New York State Museum Bulletin Number 384. Albany, New York: The University of the State of New York, The State Education Department. Thomas, David Hurst (1981). "How to Classify the Projectile Points from Monitor Valley, Nevada". Journal of California and Great Basin Anthropology.
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 sharpened tip of the solid shaft, but it is far more common for separate arrowheads to be made, usually from metal, horn, rock, or some other hard material.
Combining Diacritical Marks is a Unicode block containing the most common combining characters.It also contains the character "Combining Grapheme Joiner", which prevents canonical reordering of combining characters, and despite the name, actually separates characters that would otherwise be considered a single grapheme in a given context.
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 ...
Elko Side Notch points are triangular with a flattened to slightly elliptical cross section and ranging on average of 33 to 51 mm long. The blade is narrowly serrated with an average arrowhead width of 13 to 17 mm. The base is fairly flat to slightly concave with a small notch and stem at the base.
17 is a Leyland number [3] and Leyland prime, [4] using 2 & 3 (2 3 + 3 2) and using 4 and 5, [5] [6] using 3 & 4 (3 4 - 4 3). 17 is a Fermat prime. 17 is one of six lucky numbers of Euler. [7] Since seventeen is a Fermat prime, regular heptadecagons can be constructed with a compass and unmarked ruler.
Milled and marked materials were delivered to the work site for cutting and assembly by a carpenter. Windows, doors and some cabinetry were built at the yard. Frames, shelves, trim and some fixtures were cut and assembled on site. Most wood parts had a part number and corresponding instructions and drawings for joining, fit and finish.
Susquehanna broad projectile point from central New York State. Made from rhyolite, probably quarried near Gettysburg, Pennsylvania.. Susquehanna broad projectile points are stone projectile points manufactured by Native Americans in what is now the Northeastern United States, generally in the time interval of 1200–700 BC.