Search results
Results From The WOW.Com Content Network
Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, [1] [2] categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone tools and start fires. Flint occurs chiefly as nodules and masses in sedimentary rocks, such as chalks and limestones.
Flint mining is the process of extracting flint from underground. Flint mines can be as simple as a pit on the surface or an area of quarrying, or it may refer to a series of shafts and tunnels used to extract flint. Flint has been mined since the Palaeolithic, but was most common during the Neolithic.
Flint corn (Zea mays var. indurata; also known as Indian corn or sometimes calico corn) is a variant of maize, the same species as common corn. [1] Because each kernel has a hard outer layer to protect the soft endosperm , it is likened to being hard as flint , hence the name. [ 2 ]
When flint and steel were used, the fire steel was often kept in a metal tinderbox together with flint and tinder. In Tibet and Mongolia, they were instead carried in a leather pouch called a chuckmuck. In Japan, percussion fire making was performed using agate or even quartz. It was also used as a ritual to bring good luck or ward off evil.
The Clactonian is the name given by archaeologists to an industry of European flint tool manufacture that dates to the early part of the Hoxnian Interglacial (corresponding to the global Marine Isotope Stage 11 and the continental Holstein Interglacial) around 424–415,000 years ago. [1] Clactonian tools were made by Homo heidelbergensis. [2]
It is not known where or when the design originated, but it was manufactured locally in several countries in Central Asia. [citation needed] One known, still active, hub of metalwork was the area between Lanzhou, Xining and Labrang, the NE part of Amdo which incorporates the Amdo Tibetans, some Mongol regions, the Salar, the Hui and Han Chinese.
The president did not immediately offer details on how the U.S. would manage the site and what it would do with it. “The U.S. will take over the Gaza Strip, and we will do a job with it too.
South Asia in World History (Oxford UP, 2017) Goldin, Peter B. Central Asia in World History (Oxford UP, 2011) Holcombe, Charles. A History of East Asia: From the Origins of Civilization to the Twenty-First Century (2010). Huffman, James L. Japan in World History (Oxford, 2010) Jansen, Marius B. Japan and China: From War to Peace, 1894-1972 (1975)