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While Lamb's analysis assumed a straight wavefront, it has been shown [8] that the same characteristic equations apply to cylindrical plate waves (i.e. waves propagating outwards from a line source, the line lying perpendicular to the plate). The difference is that whereas the "carrier" for the straight wavefront is a sinusoid, the "carrier ...
A photo of the Kincaid Site showing (clockwise from left) mounds 7, 8, and 9 Diagram of site on one of three information plaques on display. The Chicago excavators in the 1930s documented a prehistory in the Kincaid area stretching back thousands of years, into what is now known as the Archaic Period (8000 to 2000 BCE).
Carving at the LDS Temple Quarry. There are many non-contributing, modern structures in the district. The district was declared a National Historic Landmark in 1961. [2] It is significant as the headquarters of The Church of Jesus Christ of Latter Day Saints from 1839 and 1846, and as an important early example of community planning by the Latter Day Saint movement.
The Lamb Site (11SC24) is an archeological site located in the central Illinois River Valley (CIRV). Excavations of this site began in the 1990s to attempt to understand the Mississippinization of the area following several generations after the intervention of the Cahokians before Columbus's discovery of America. During the eleventh and ...
A map showing approximate areas of various Mississippian and related cultures (c. 800-1500 CE) This is a list of Mississippian sites. The Mississippian culture was a mound-building Native American culture that flourished in what is now the Midwestern, inland-Eastern, and Southeastern United States from approximately 800 CE to 1500 CE, varying regionally. [1]
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The Cairo Historic District is a historic district encompassing a large section of Cairo, Illinois.The district is roughly bounded by Park, 33rd, Sycamore, 21st, Cedar, and 4th Streets and the Ohio River; it includes most areas of Cairo developed by 1890, save for two sections which are almost entirely renovated or deteriorated.
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