|
Ridgeway Site
The Ridgeway Site (also known as the "Ridgeway Kame" or the "Richardson Kame") is a former archaeological site and burial site in the west-central part of the U.S. state of Ohio. Revealed to be a leading site by the construction of a railroad, it yielded a large and highly informational number of artifacts and buried bodies. It is the type site of the Glacial Kame culture: all other sites of the same culture are measured against it. Background Located between the villages of Ridgeway and Mount Victory in southeastern Hardin County's Hale Township, it consisted of a large kame of gravel that had been deposited by glaciers. In the first years of white settlement of Ohio, the kame was not widely known to be an archaeological site; locals found artifacts and skeletons there, but news of its existence first reached a wider audience in 1856. In that year, the Bellefontaine and Indiana Railroad began constructing a rail line between Mount Victory and Ridgeway. Because the ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hardin County, Ohio
Hardin County is a county located in the west central portion of the U.S. state of Ohio. As of the 2020 census, the population was 30,696. Its county seat is Kenton. The county was created in 1820 and later organized in 1833. It is named for John Hardin, an officer in the American Revolution The American Revolution was an ideological and political revolution that occurred in British America between 1765 and 1791. The Americans in the Thirteen Colonies formed independent states that defeated the British in the American Revolut .... Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.1%) is water. Adjacent counties *Hancock County, Ohio, Hancock County (north) *Wyandot County, Ohio, Wyandot County (northeast) *Marion County, Ohio, Marion County (east) *Union County, Ohio, Union County (southeast) *Logan County, Ohio, Logan County (south) *Auglaize County, Ohio, Auglaize County (southwest) *Allen County, Ohio, Alle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ann Arbor, Michigan
Ann Arbor is a city in the U.S. state of Michigan and the county seat of Washtenaw County, Michigan, Washtenaw County. The 2020 United States census, 2020 census recorded its population to be 123,851. It is the principal city of the Ann Arbor List of metropolitan statistical areas, Metropolitan Statistical Area, which encompasses all of Washtenaw County. Ann Arbor is also included in the Metro Detroit, Greater Detroit Combined statistical area, Combined Statistical Area and the Great Lakes megalopolis, the most populated and largest Megaregions of the United States, megalopolis in North America. Ann Arbor is home to the University of Michigan. The university significantly shapes Ann Arbor's economy as it employs about 30,000 workers, including about 12,000 in the University of Michigan Health System, medical center. The city's economy is also centered on high technology, with several companies drawn to the area by the university's research and development infrastructure. Ann A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rattlesnake
Rattlesnakes are venomous snakes that form the genera ''Crotalus'' and ''Sistrurus'' of the subfamily Crotalinae (the pit vipers). All rattlesnakes are vipers. Rattlesnakes are predators that live in a wide array of habitats, hunting small animals such as birds and rodents. Rattlesnakes receive their name from the rattle located at the end of their tails, which makes a loud rattling noise when vibrated that deters predators or serves as a warning to passers-by. Rattlesnakes are the leading contributor to snakebite injuries in North America, but rarely bite unless provoked or threatened; if treated promptly, the bites are seldom fatal. The 36 known species of rattlesnakes have between 65 and 70 subspecies, all native to the Americas, ranging from British Columbia through Ontario in southern Canada, to central Argentina. The largest rattlesnake, the eastern diamondback, can measure up to in length. Rattlesnakes are preyed upon by hawks, weasels, king snakes, and a variety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Stone
Bird stones are prehistoric, abstract stone carvings made by Native Americans. The artifacts were a common inclusion in graves and thought to have ceremonial importance. They are noted for their distinctive simplicity and beauty. They first appeared in the middle Archaic period around 5,000 years ago and continued into the early Woodland period to about 2,500 years before present. The exact purpose of these artifacts is not known, but most have a small hole drilled at the base of the neck and another at the aft end, presumably for mounting. Some theories suggest they were part of an atlatl (a short rod to hurl spears), in addition to their ceremonial uses. A new theory recently arising from an amateur archaeologist focused on Native American fiber processing, is the bird stone was a tool used for mat-making and weaving. Many stones have been found near waterways and swamp areas where reeds grow, these areas being where materials for mat-making were collected and processed. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shell Gorget
Shell gorgets are a Native American art form of polished, carved shell pendants worn around the neck. The gorgets are frequently engraved, and are sometimes highlighted with pigments, or fenestrated (pierced with openings). Shell gorgets were most common in Eastern Woodlands of the United States, during the Hopewell tradition (200 BCE– 500 CE) and Mississippian cultural period (ca. 800–1500 CE); however, tribes from other regions and time periods also carved shell gorgets. The earliest shell gorgets date back to 3000 years BP. They are believed to have been insignia of status or rank,C. Andrew Buchner"Cox Mound Gorget."''The Tennessee Encyclopedia of History and Culture.'' (retrieved 23 July 2010) either civic, military, or religious, or amulets of protective medicine. Due to the placement of the holes in the gorgets, they are also thought to be spinners that could produce whistling sounds. Materials and techniques Lightning whelk (''Sinistrofulgur perversum'') is the mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Tool
A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. Although stone tool-dependent societies and cultures still exist today, most stone tools are associated with prehistoric (particularly Stone Age) cultures that have become extinct. Archaeologists often study such prehistoric societies, and refer to the study of stone tools as lithic analysis. Ethnoarchaeology has been a valuable research field in order to further the understanding and cultural implications of stone tool use and manufacture. Stone has been used to make a wide variety of different tools throughout history, including arrowheads, spearheads, hand axes, and querns. Stone tools may be made of either ground stone or knapped stone, the latter fashioned by a flintknapper. Knapped stone tools are made from cryptocrystalline materials such as chert or flint, radiolarite, chalcedony, obsidian, basalt, and quartzite via a process known as lithic reduction. One simple form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bead
A bead is a small, decorative object that is formed in a variety of shapes and sizes of a material such as stone, bone, shell, glass, plastic, wood, or pearl and with a small hole for threading or stringing. Beads range in size from under to over in diameter. Beads represent some of the earliest forms of jewellery, with a pair of beads made from ''Nassarius'' sea snail shells dating to approximately 100,000 years ago thought to be the earliest known example. Beadwork is the art or craft of making things with beads. Beads can be woven together with specialized thread, strung onto thread or soft, flexible wire, or adhered to a surface (e.g. fabric, clay). Types of beads Beads can be divided into several types of overlapping categories based on different criteria such as the materials from which they are made, the process used in their manufacturing, the place or period of origin, the patterns on their surface, or their general shape. In some cases, such as millefiori and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertebrate Trachea
The trachea, also known as the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs. The trachea extends from the larynx and branches into the two primary bronchi. At the top of the trachea the cricoid cartilage attaches it to the larynx. The trachea is formed by a number of horseshoe-shaped rings, joined together vertically by overlying ligaments, and by the trachealis muscle at their ends. The epiglottis closes the opening to the larynx during swallowing. The trachea begins to form in the second month of embryo development, becoming longer and more fixed in its position over time. It is epithelium lined with column-shaped cells that have hair-like extensions called cilia, with scattered goblet cells that produce protective mucins. The trachea can be affected by inflammation or infection, usually as a result of a viral illness affecting other parts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartilage
Cartilage is a resilient and smooth type of connective tissue. In tetrapods, it covers and protects the ends of long bones at the joints as articular cartilage, and is a structural component of many body parts including the rib cage, the neck and the bronchial tubes, and the intervertebral discs. In other taxa, such as chondrichthyans, but also in cyclostomes, it may constitute a much greater proportion of the skeleton. It is not as hard and rigid as bone, but it is much stiffer and much less flexible than muscle. The matrix of cartilage is made up of glycosaminoglycans, proteoglycans, collagen fibers and, sometimes, elastin. Because of its rigidity, cartilage often serves the purpose of holding tubes open in the body. Examples include the rings of the trachea, such as the cricoid cartilage and carina. Cartilage is composed of specialized cells called chondrocytes that produce a large amount of collagenous extracellular matrix, abundant ground substance that is rich in pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ossification
Ossification (also called osteogenesis or bone mineralization) in bone remodeling is the process of laying down new bone material by cells named osteoblasts. It is synonymous with bone tissue formation. There are two processes resulting in the formation of normal, healthy bone tissue: Intramembranous ossification is the direct laying down of bone into the primitive connective tissue ( mesenchyme), while endochondral ossification involves cartilage as a precursor. In fracture healing, endochondral osteogenesis is the most commonly occurring process, for example in fractures of long bones treated by plaster of Paris, whereas fractures treated by open reduction and internal fixation with metal plates, screws, pins, rods and nails may heal by intramembranous osteogenesis. Heterotopic ossification is a process resulting in the formation of bone tissue that is often atypical, at an extraskeletal location. Calcification is often confused with ossification. Calcification is sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cremation
Cremation is a method of Disposal of human corpses, final disposition of a Cadaver, dead body through Combustion, burning. Cremation may serve as a funeral or post-funeral rite and as an alternative to burial. In some countries, including India and Nepal, cremation on an Pyre, open-air pyre is an ancient tradition. Starting in the 19th century, cremation was introduced or reintroduced into other parts of the world. In modern times, cremation is commonly carried out with a Crematorium, closed furnace (cremator), at a crematorium. Cremation leaves behind an average of 2.4 kg (5.3 lbs) of remains known as "ashes" or "cremains". This is not all ash but includes unburnt fragments of bone mineral, which are commonly ground into powder. They do not constitute a health risk and may be buried, interred in a memorial site, retained by relatives or scattered in various ways. History Ancient Cremation dates from at least 17,000 years ago in the archaeological record, with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Rattlesnake")
.jpg "Click for more on -> Ossification")
