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Harrow (tool) 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. Coarser harrowing may also be used to remove ...
Harrows, whether spring tooth, spike tooth or disc harrows can have a drag connection or have a 3 point mounting. A drag harrow is pulled and cannot be backed up. Three point implements can be raised and lowered hydraulicly and maneuvered more easily. A spring-tooth harrow is a type of harrow, and specifically a type of tine harrow. It uses ...
Disc harrow. A disc harrow is a harrow whose cutting edges are a row of concave metal discs, which may be scalloped or set at an oblique angle. It is an agricultural implement that is used to till the soil where crops are to be planted. It is used to chop up unwanted weeds or crop residue. It is also one of the many soil cultivation implements ...
Crystal radio was invented by a long, partly obscure chain of discoveries in the late 19th century that gradually evolved into more and more practical radio receivers in the early 20th century. The earliest practical use of crystal radio was to receive Morse code radio signals transmitted from spark-gap transmitters by early amateur radio ...
Ben Affleck on Aug. 8, 2024. Ben Affleck was seen heading to the office as rumors continue to swirl regarding his marriage to Jennifer Lopez. Affleck, 51, was photographed wearing a gray blazer, a ...
The rise and fall of the company, and Vance’s role in it, cuts against his image as a champion for the working class — an image that helped catapult him to the top of the Republican ticket as ...
The Hudson River Chains were a series of chain booms constructed across the Hudson River at West Point by Continental Army forces from 1776 to 1778 during the American Revolutionary War. These served as defenses preventing British naval vessels from sailing upriver and were overseen by the Highlands Department of the Continental Army .
A landmark ruling on Monday that Alphabet's Google illegally monopolizes Web search also came with a rebuke for the tech giant for obscuring potential evidence in the case, and a warning to other ...