ความคิดเห็นที่ 10
แรงดึงดูด เกิดจากอะไรครับ
ผมว่าเกิดจากอะไร บอกยาก ผมก็ไม่รู้ว่าจากอะไร
http://www.regenerating-universe.org/13)_What_is_Gravity.htm
In view of the fact that Newton's law of gravity works, but without explanations of its true origin. Einstein's relativistic gravity gives an explanation of origin, but it is based on imaginary 4th dimension and space curvature. Gravity therefore is still shrouded somewhat behind a veil of mystery! In fact, for over 300 years since Newton's efforts, tens of thousands of the best minds in the history of science, including Newton and Galileo, had squeezed their brains dry trying to explain the origin of gravity. The difficulty and complexity are obvious! The hope of solving the mystery now must rest partly on modern Quantum physics and partly on astrophysics. Quantum physics probes into the fundamental nature and properties of atoms, because undoubtedly gravity is proportional to mass and therefore every atoms is somehow involved in the output of gravitational force (Note: Gravitation is a force as it is proven in calculations and in experiments since the days of Newton). Astrophysics studies cosmological motions and the energy that causes motions. This might just as well be, perhaps it might promote more dedicated studies on the extreme conditions at the galactic center where nature's own particle accelerator is hard at work, and conversions between mass and energy are going on all the time...
In the last many decades, quantum physicists have spared no efforts, nor costs, to come up with results that have greatly advanced modern science and technology. Yet, despite the achievements there's still a long way before human efforts can simulate the extreme conditions at the center of galaxies. Unless what really goes on at the galactic center is thoroughly studied and understood, some processes in nature's conversion between mass and energy will remain unknown and the efforts of quantum physics would not be complete. There are also the extreme diversities of natural conditions in different cosmological regions, or stars or planets, which are so different from those on earth, but under which evolution develops new lives, or new materials and structures, including subatomic structures. However, since presently such conditions and structures cannot be tested on earth, the lack of experimental knowledge must be compensated by theories based on strictly proven principles, tangible evidences, at least logics and common sense, certainly not random fantasies.
In the search for the origin of gravity, mere laboratory examinations on the properties and interactions within the mass or the atom is clearly not enough. In fact, it's quite useless searching for the source or the root of gravitation within the mass alone, because the mass or atom by itself does not have sufficient energy, nor mechanism powerful enough to create such persistent gravitational transmission, which is an extremely long range universal force able to cohere the galaxy or the universe. What's more, gravity is a force in waves, an attractive force yet without electric or magnetic properties, and still it must involve the whole weight of the mass concerned. Besides, gravitation has "field" effect as it influences all masses in the near... If the origin of gravity could be found inside mass alone, it would have been found hundreds of years ago by Newton, or Galileo and the like, or by advanced modern particle physics, which breaks down atoms for close look on daily bases.... So I believe really there are hardly many other possibilities, simply because there are not too many choices in the mass to work on!......
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