What Is a Tidal Force?
Based on theoretical reasoning and mathematical analysis, the expressions of tidal forces that cause periodic fluctuations in the earth are obtained. The tidal forces caused by tidal forces have wavelengths and amplitudes that vary with the distance of the earth from the ecliptic plane. Increasing, the wavelength and amplitude gradually decrease, but the amplitude points on the same ring line are consistent. The period of about 12 hours of the Earth s expansion and contraction characteristics and the speed of radial change along the orbit are one of the determinants affecting the tidal energy of the earth. 2 68 ° 1 5 is where the tidal energy is greatest. The tidal force of the earth is generated by the elliptical orbital motion. Since the orbital motion of the moon is the focus of the earth, a tide affected by the earth can be generated on the moon, and the opposite tide cannot be generated because the sea or magma does not follow the moon Focus on orbital motion.
- When a celestial body A is affected by the gravity of celestial body B, the effect of the force field on the surface of A facing B and facing away from B is very different. This caused a lot of strain on the nails, and they even turned into fragments (see
- A new perspective on the cause of tidal forces is summarized as follows: The earth performs both revolutions and revolutions, and the directions of rotation and revolution are the same, so the part of the earth facing the sun orbits
- Based on theoretical reasoning and mathematical analysis, the expressions of the tidal forces that cause periodic fluctuations in the earth are obtained. The tides caused by tidal forces, their wavelengths and
- Scientists have discovered two 'contaminated' by matter through the Hubble Space Telescope
- In a non-uniform gravitational field, due to the non-uniformity of the gravitational distribution, the objects are subjected to a pair of tensile forces. The gravitational fields of the celestial bodies such as the sun, the earth, and the moon are all spherically symmetric gravitational fields. The strength of the gravitational field is inversely proportional to the square of the distance from the observation point to the center of the planet, so they are all non-uniform fields. If the size of an object in such a non-uniform field cannot be ignored, the gravity of each part of the unit will be different. If someone on the surface of the earth is 1.8 meters tall, the gravity acceleration at the center of gravity is g, the head is farther from the center of the earth than the feet, the unit mass of the head is less than g, and the unit mass of the foot is greater than g (as shown). This situation is equivalent to: In addition to the uniform weight g of each unit of the person, a pair of tidal forces are pulled outward. According to actual tests and theoretical calculations, when a person of 1.8 meters in height is standing upright, the gravity phase of the mass of the foot unit is affected.
- Analysis of Yueling Formation Mechanism
- Yueling, as one of the common linear structure types of the moon surface, has a certain distribution law. Based on the LRO (Lunar Reconnaissance Orbiter) DEM data, the Yueling section was extracted and the structural analysis was carried out. It is considered that the Yueling body is the compression structure forming mechanism of the thrust fault superimposed with traction folds. The previous generation used the subsidence of the Moon Sea Basin and the contraction of the Moon s thermal energy to explain the cause of the Moon Ridge, but it could not explain the preferred orientation of the Moon Ridge in the basin near the north-south direction. This phenomenon may be affected by near-east-west regional compression stress. Consistent with the state of the tidal force acting on the middle and low latitudes of the moon, it is speculated that the tidal force may be the main cause of the formation of the Moon Ridge in the central basin. By comprehensively using Chang'e-1 CCD image data, Lunar Orbiter and LRO full-color image data, the interpretation and identification of 1,464 moon ridges at the middle and low latitudes of the moon front. Statistics on its direction indicate that the overall trend of Yueling is similar to the tectonic pattern formed by the tidal force predicted by Melosh. It is inferred that the distribution of Yueling has a strong correlation with tidal force, which further proves that the formation of Yueling is related to tidal force. [6]
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