What Is Holistic Kinesiology?
Geokinetics is a branch of geophysics that studies various mechanical processes, force sources, and mechanical properties of large-scale or global motion of the earth.
Earth kinematics
- Chinese name
- Earth kinematics
- Foreign name
- Earth kinematics
- Geokinetics is a branch of geophysics that studies various mechanical processes, force sources, and mechanical properties of large-scale or global motion of the earth.
- Knowledge of Earth Kinematics (1) Knowledge of Earth Shape and size. The shape of the earth is an irregular sphere with slightly flat poles. The average radius of the earth is 6371 kilometers, the equatorial radius is 6378 kilometers, and the polar radius is 6357 kilometers. The circumference of the equator is about 40,000 kilometers.
2. Latitude and longitude, longitude and longitude.
(1) Weft threads: Weft threads are all round, also known as weft loops, with varying lengths. The equator is the longest, gradually shortening from the equator to the poles, and finally becomes a little. The parallels indicate the east-west direction. Latitude: The equator is the zero-degree parallel. Latitudes north of the equator are called north latitudes and are coded with "N"; latitudes south of the equator are called south latitudes and coded with "S". The north and south latitudes are each 90 °. Low, middle and high latitudes. Division of the northern and southern hemispheres.
(2) Meridian: Also called meridian. The meridians are semicircles and all meridians are equal in length. Longitude indicates north-south direction. Longitude: The zero meridian is called the prime meridian. From the beginning of the meridian to the east and west, it is divided into 180 degrees, and 180 degrees to the east belong to the east longitude, and "E" is used as the code; The east-west 180 ° meridian is combined into one meridian. With the warp coils of 20 ° W and 160 ° E, the earth is divided into east, west, and two hemispheres.
(II) The method of determining geographic coordinates based on the longitude and latitude network The longitude and latitude network can be used to accurately determine the geographic coordinates of any point on the surface of the earth.
Side plan view Cylindrical projection view Figure 1
- Determine latitude and latitude
- On the side and cylindrical projections, the parallels are straight. The latitude value increases to the north and the south to the south. In the top view, the latitude lines are a set of concentric circles. If the center of the circle is the north pole, each latitude line indicates the north latitude, and the value increases toward the north pole.
Determine the longitude and longitude. On the side view, the longitude is the line connecting the north and south poles; on the top view, the longitude is a group of line segments that radiate from the pole to the surroundings; on the cylindrical projection, the longitude is a line segment perpendicular to each latitude. Regardless of the longitude and latitude network, the value of east longitude increases with the rotation direction of the earth, and the value of west longitude decreases with the rotation direction of the earth.
(3) Calculating the distance using the latitude and longitude network On the longitude and latitude network map, the distance between two points can be calculated according to the latitude and longitude measurement. The arc length on the ground corresponding to 1 ° latitude (that is, the length of the meridian) is about 111km, and the arc length on the ground corresponding to 1 ° on the equator is also about 111km, so as long as you know the latitude difference between any two places, or the equator The difference in longitude between any two places can be used to calculate the actual distance between them.
The length of the interval of 1 ° latitude around the world is equal (because all the lengths of the meridians are equal), it is about 111km / 1 °.
The longest interval on the equator with a longitude of 1 ° is about 111