query: Why are we still considering gravity as one of four fundamental forces?
positive_passages.docid: 55099
positive_passages.text: Why do we still need to think of gravity as a force?
negative_passages.docid: 49577
negative_passages.text: Spherical / Relative Gravity
negative_passages.docid: 139646
negative_passages.text: Can we rigorously define force?
negative_passages.docid: 104844
negative_passages.text: Why is gravity such a unique force?
negative_passages.docid: 125082
negative_passages.text: Why is force a vector?
negative_passages.docid: 43858
negative_passages.text: Is acceleration due to gravity constant?
negative_passages.docid: 2631
negative_passages.text: Can all fundamental forces be fictitious forces?
negative_passages.docid: 29340
negative_passages.text: Why does no physical energy-momentum tensor exist for the gravitational field?
negative_passages.docid: 82362
negative_passages.text: Is there a fundamental reason why gravitational mass is the same as inertial mass?
negative_passages.docid: 83262
negative_passages.text: Why is there a factor of $4\pi$ in certain force equations?
negative_passages.docid: 123571
negative_passages.text: A change in the gravitational law
negative_passages.docid: 87475
negative_passages.text: Why are there only four fundamental interactions of nature?
negative_passages.docid: 17427
negative_passages.text: Is Pauli-repulsion a "force" that is completely separate from the 4 fundamental forces?
negative_passages.docid: 133388
negative_passages.text: Why centrifugal force (not centripetal force) is considered while deriving the effect of rotation of Earth on "g"?
negative_passages.docid: 50566
negative_passages.text: Nature of gravity: gravitons, curvature of space-time or both?
negative_passages.docid: 24042
negative_passages.text: Why does gravity need to be quantised?
negative_passages.docid: 7291
negative_passages.text: Gravity as a gauge theory