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Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.
A diagram of a typical nautical sextant, a tool used in celestial navigation to measure the angle between two objects viewed by means of its optical sight. Celestial navigation, also known as astronavigation, is the practice of position fixing using stars and other celestial bodies that enables a navigator to accurately determine their actual current physical position in space or on the ...
In this case, the position would be ahead and above the horizon, an advantageous position for the attacker. The phrase "on your six" refers to the six o'clock or the adjacent positions; that is, the expression cautions that someone is behind you or on your tail. Likewise, "check your six" or "check six" means "watch your back" or "watch out for ...
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“This position offers intimacy and allows for deep penetration while providing a sense of comfort and relaxation,” Moore explains. “The woman can control the pressure and angle of ...
In order to calculate the position line, the time of the sight must be known so that the celestial position i.e. the Greenwich Hour Angle (Celestial Longitude - measured in a westerly direction from Greenwich) and Declination (Celestial Latitude - measured north or south of the equational or celestial equator), of the observed celestial body is ...
A new study finds the traditional way of taking blood pressure may not give accurate results. Researchers discovered that some people only had high blood pressure while lying down.
The term is loosely used to refer to any clock that shows, in addition to the time of day, astronomical information. This could include the location of the Sun and Moon in the sky, the age and Lunar phases , the position of the Sun on the ecliptic and the current zodiac sign, the sidereal time , and other astronomical data such as the Moon's ...