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In soil science, agriculture and gardening, hardpan or soil pan is a dense layer of soil, usually found below the uppermost topsoil layer. [1] There are different types of hardpan, all sharing the general characteristic of being a distinct soil layer that is largely impervious to water. Some hardpans are formed by deposits in the soil that fuse ...
The term handpan has been discussed with much controversy over the instrument's relatively short life. Critics pointed out that the Hang, which most makers of the handpan use as a standard model, is essentially defined through its difference from the steelpan, even though it is based on the same physical principles.
A call for a next generation plate, to stop even greater velocity threats than the ESAPI plate was issued by the U.S. Army in 2008. [5] The X Threat Small Arms Protective Insert plates are specifically allowed scalar or flexible systems, and asked for better coverage, with less than a pound of additional weight.
A manhole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.
The requirement that a fragipan can slake in water separates it from a Petrocalcic Horizon and a duripan. Fragipans are very hard, even when thoroughly wet, to the extent that roots cannot penetrate. A fragipan does not contain calcium carbonate or magnesium carbonate, which would make it a Petrocalcic Horizon.
webOS, also known as LG webOS and previously known as Open webOS, HP webOS and Palm webOS, [2] is a Linux kernel-based multitasking operating system for smart devices
A plate is a broad, mainly flat vessel on which food can be served. [1] A plate can also be used for ceremonial or decorative purposes. Most plates are circular, but they may be any shape, or made of any water-resistant material. Generally plates are raised round the edges, either by a curving up, or a wider lip or raised portion.
A builder's plate is usually a metal plate that is attached to railway locomotives and rolling stock, bogies, construction equipment, trucks, automobiles, ...