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The Levallois technique of flint-knapping. In archaeology, in particular of the Stone Age, lithic reduction is the process of fashioning stones or rocks from their natural state into tools or weapons by removing some parts.
The Wayoh reservoir, viewed from the Edgworth side with the Entwistle viaduct in the background.. The West Pennine Moors is an area of the Pennines covering approximately 90 square miles (230 km 2) of moorland and reservoirs in Lancashire and Greater Manchester, England. [1]
Arrowheads are attached to arrow shafts to be shot from a bow; similar types of projectile points may be attached to a spear and "thrown" by means of an atlatl (spear thrower). The arrowhead or projectile point is the primary functional part of the arrow, and plays the largest role in determining its purpose. Some arrows may simply use a ...
In agriculture, a harrow is a farm implement used for surface tillage. It is used after ploughing for breaking up and smoothing out the surface of the soil . The purpose of harrowing is to break up clods and to provide a soil structure , called tilth , that is suitable for planting seeds .
Wheat developmental stages on the BBCH and Zadok's scales. Wheat normally needs between 110 and 130 days between sowing and harvest, depending upon climate, seed type, and soil conditions. Optimal crop management requires that the farmer have a detailed understanding of each stage of development in the growing plants.
Top view of a Spanish threshing board Bottom view of a Spanish threshing board. A threshing board, also known as threshing sledge, [1] is an obsolete agricultural implement used to separate cereals from their straw; that is, to thresh.
Some wheat headers, called "draper" headers, use a fabric or rubber apron instead of a cross auger. Draper headers allow faster feeding than cross augers, leading to higher throughputs due to lower power requirements. On many farms, platform headers are used to cut wheat, instead of separate wheat headers, so as to reduce overall costs.
One of 12 roundels depicting the "Labours of the Months" (1450-1475) A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting or reaping grain crops, or cutting succulent forage chiefly for feeding livestock.