Viking Age arms and armour to claim it for Odin. Possibly due to its cultural significance, pattern welded blades are common in spear heads, and the sockets were often decorated with silver inlaid patterns. A polearm known as the "atgeir" is mentioned in several sagas of Icelanders and other literature. "Atgeir" is usually translated as "halberd", akin to a glaive. Gunnar Hámundarson is described in "Njáls saga" as cutting and impaling foes on his "atgeir". Several weapons (including the "kesja" and the "höggspjót") appearing in the sagas are Viking halberds. No weapon matching their descriptions have been found in graves. These weapons may have been
Types of beacons Types of beacons Beacons are small devices that enable relatively accurate location within a narrow range. Beacons periodically transmit small amounts of data within a range of approximately 70 meters, and are often used for indoor location technology. Compared to devices based on Global Positioning System (GPS), beacons provide more accurate location information and can be used for indoor location. Various types of beacons exist, which can be classified based on their type of Beacon protocol, power solution and location technology. In December 2013, Apple announced iBeacon: the first beacon protocol in the market. iBeacon works with Apple's iOS and