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Orford Ness is an internationally important site for nature conservation. It contains a significant portion of the European reserve of vegetated shingle habitat, [3] which is internationally scarce, highly fragile, and very easily damaged.
An astrocompass is a navigational tool for determining the direction of true north through the positions of various astronomical bodies. It is an evolution of earlier solar compass designs. [1] There are certain circumstances when magnetic compasses and gyrocompasses are unreliable. The most obvious is in polar regions, where the force exerted ...
The Ministry of Defence Magnetic Range, (a.k.a. the Portland Bill Land Magnetic Facilities or the Defence Test and Evaluation Organisation Establishment) is a Ministry of Defence site used for magnetic measurement on the Isle of Portland, Dorset, England. The facility is situated at Portland Bill, where tests can be performed well away from ...
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In mathematics, a transcendental number is a real or complex number that is not algebraic – that is, not the root of a non-zero polynomial with integer (or, equivalently, rational) coefficients. The best-known transcendental numbers are π and e. [1] [2] The quality of a number being transcendental is called transcendence .
The Jesuit China missionsof the 16th and 17th centuries introduced Western science and astronomy, while undergoing its own scientific revolution, at the same time bringing Chinese knowledge of technology back to Europe. [1][2]In the 19th and 20th centuries the introduction of Western technology was a major factor in the modernization of China.
Magnetic compass adjustment and correction is one of the subjects in the examination curriculum for a shipmaster's certificate of competency. The sources of magnetic deviation vary from compass to compass or vehicle to vehicle. However, they are independent of location, and thus the compass can be calibrated to accommodate them.
A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers.