(physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them
They say the observations cannot be explained by theoriesofgravity that remove the need for dark matter.
他们指这些观察并不能以拉力定理所说的必需移走暗物质来解释。
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Other theoriesof quantum gravity, including string theory and loop quantum gravity, are far more difficult for newcomers to embrace.
量子引力的其它理论,包括弦论和圈量子引力,对新人来说都更难以涉足其中。
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To be fair, however, m theory does take one important step toward unification by removing the infinities that plagued earlier theoriesof quantum gravity.