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Bostadh (Iron Age Settlement)
The Bostadh settlement (also known as Traigh Bosta; Traigh Bostadh; Bosta) is a settlement of houses located on Bosta Beach. The Bostadh Iron Age settlement is located on the island of Great Bernera in the Outer Hebrides, Scotland. The settlement originally dates to the Late Iron Age, about 400-800 CE. A later Norse structure was built on top of the Iron Age settlement. The settlement was located in an advantageous area; it had easy access to a freshwater stream to the south, and its proximity to the ocean provided easy access to fishing waters. The Bostadh Iron Age settlement is a scheduled monument. It is monitored by Historic Environment Scotland and is managed by the Comunn Eachdraidh sgire Bhearbaraidh (Bernera Historical Society). Archaeology Prior to excavation there was a variety of evidence indicating the presence of a settlement on Bosta Beach, including artefacts and signs of the presence of structures. As early as 1966 the presence of midden deposits and stone stru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Bernera
Great Bernera (; ), often known just as Bernera (), is an island and community council, community in the Outer Hebrides of Scotland. With an area of just over , it is the thirty-fourth largest List of islands of Scotland, Scottish island. Great Bernera lies in Loch Roag on the north-west coast of Isle of Lewis, Lewis and is linked to it by a road bridge. Built in 1953, the bridge was the first pre-stressed concrete bridge in Europe. The main settlement on the island is Breaclete (Gaelic: ''Breacleit''). The island, under the name of "Borva", was the setting for ''A Princess of Thule'' (1873) by the Scottish novelist William Black (novelist), William Black. The novel is notable for its descriptions of the local scenery. History The island's name is Old Norse, Norse in origin and is derived in honour of Bjarnar, father of the Norse Chieftain of Lewis Ketil Bjarnarson (or the Flatneif). The vast majority of placenames in the district are similarly Norse, implying extensive Viki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hammerstone
In archaeology, a hammerstone is a hard cobble used to strike off lithic flakes from a lump of tool stone during the process of lithic reduction. The hammerstone is a rather universal stone tool which appeared early in most regions of the world including Europe, India and North America. This technology was of major importance to prehistoric cultures before the development of metalworking. Materials A hammerstone is made of a material such as sandstone, limestone or quartzite, is often ovoid in shape (to fit the human hand better), and develops telltale battering marks on one or both ends. In archaeological recovery, hammerstones are often found in association with other stone tool artifacts, debitage and/or objects of the hammer such as ore. The modern use of hammerstones is now mostly limited to flintknappers and others who wish to develop a better understanding of how stone tools were made. Usage Hammerstones are or were used to produce flakes and hand axes as well a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thatching
Thatching is the craft of building a roof with dry vegetation such as straw, water reed, sedge ('' Cladium mariscus''), rushes, heather, or palm branches, layering the vegetation so as to shed water away from the inner roof. Since the bulk of the vegetation stays dry and is densely packed—trapping air—thatching also functions as insulation. It is a very old roofing method and has been used in both tropical and temperate climates. Thatch is still employed by builders in developing countries, usually with low-cost local vegetation. By contrast, in some developed countries it is the choice of some affluent people who desire a rustic look for their home, would like a more ecologically friendly roof, or who have purchased an originally thatched abode. History Thatching methods have traditionally been passed down from generation to generation and numerous descriptions of the materials and methods used in Europe over the past three centuries survive in archives and early publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground-penetrating Radar
Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. It is a non-intrusive method of surveying the sub-surface to investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry. This nondestructive method uses electromagnetic radiation in the microwave band ( UHF/ VHF frequencies) of the radio spectrum, and detects the reflected signals from subsurface structures. GPR can have applications in a variety of media, including rock, soil, ice, fresh water, pavements and structures. In the right conditions, practitioners can use GPR to detect subsurface objects, changes in material properties, and voids and cracks. GPR uses high-frequency (usually polarized) radio waves, usually in the range 10 MHz to 2.6 GHz. A GPR transmitter and antenna emits electromagnetic energy into the ground. When the energy encounters a buried object or a boundary between materials having different permittivities, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Resistance Survey
Electrical resistance surveys (also called earth resistance or resistivity survey) are one of a number of methods used in archaeological geophysics, as well as in engineering geology investigations. In this type of survey electrical resistance meters are used to detect and map subsurface archaeological features and patterning. Overview Electrical resistance meters can be thought of as similar to the Ohmmeters used to test electrical circuits. Archaeological features can be mapped when they are of higher or lower resistivity than their surroundings. A stone foundation might impede the flow of electricity, while the organic deposits within a midden might conduct electricity more easily than surrounding soils. Although generally used in archaeology for planview mapping, resistance methods also have a limited ability to discriminate depth and create vertical profiles (see Electrical resistivity tomography). Further applications include the measurement of the electrical resistivity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Age Life At Bosta - Bostadh - Geograph
Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most abundant element in the Earth's crust, being mainly deposited by meteorites in its metallic state. Extracting usable metal from iron ores requires kilns or furnaces capable of reaching , about 500 °C (900 °F) higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BC and the use of iron tools and weapons began to displace copper alloys – in some regions, only around 1200 BC. That event is considered the transition from the Bronze Age to the Iron Age. In the modern world, iron alloys, such as steel, stainless steel, cast iron and special steels, are by far the most common industrial metals, due to their mechanical propertie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
