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Obsidian hydration dating (OHD) is a geochemical method of determining age in either absolute or relative terms of an artifact made of obsidian.. Obsidian is a volcanic glass that was used by prehistoric people as a raw material in the manufacture of stone tools such as projectile points, knives, or other cutting tools through knapping, or breaking off pieces in a controlled manner, such as ...
Obsidian Publish is a web hosting service that allows subscribers to publish their Obsidian vaults onto the internet. Vaults that are published with the service are typically formatted similarly to the application, with a graph view provided for links between pages. The service provides support for using custom domains, themes and analytics ...
Roblox is an online game platform and game creation system built around user-generated content and games, [1] [2] officially referred to as "experiences". [3] Games can be created by any user through the platform's game engine, Roblox Studio, [4] and then shared to and played by other players. [1]
Obsidian scalpels older than 2100 BC have been found in a Bronze Age settlement in Turkey. [48] In the eastern Mediterranean area the material was used to make tools, mirrors and decorative objects. [49] The use of obsidian tools was present in Japan near areas of volcanic activity. [50] [51] Obsidian was mined during the Jōmon period.
USACE New York-New Jersey harbor estuary map 2016. The Sea Bright communities of Navesink Beach, Normandie, Downtown, and Low Moor and the northern portion of Monmouth Beach, known as Galilee, are located on the barrier spit of land south of the Sandy Hook peninsula (part of the Gateway National Recreation Area) between the Atlantic Ocean and the Shrewsbury River estuary.
Despite being sharper, prismatic obsidian is also considerably more brittle than steel; obsidian blades of the type used on the macuahuitl tended to shatter on impact with other obsidian blades, steel swords or plate armour. Obsidian blades also have difficulty penetrating European mail. The thin, replaceable blades used on the macuahuitl were ...
Thread safe, MT-safe: Use a mutex for every single resource to guarantee the thread to be free of race conditions when those resources are accessed by multiple threads simultaneously. Thread safety guarantees usually also include design steps to prevent or limit the risk of different forms of deadlocks , as well as optimizations to maximize ...
In J. R. R. Tolkien's fantasy writings, Isengard (/ ˈ aɪ z ən ɡ ɑːr d /) is a large fortress in Nan Curunír, the Wizard's Vale, in the western part of Middle-earth.In the fantasy world, the name of the fortress is described as a translation of Angrenost, a word in Tolkien's elvish language, Sindarin, a compound of two Old English words: īsen and ġeard, meaning "enclosure of iron".