query: How both inertial frames of reference are valid when it comes to time dilation?
positive_passages.docid: 8475
positive_passages.text: How is the classical twin paradox resolved?
negative_passages.docid: 67661
negative_passages.text: Is there an observable of time?
negative_passages.docid: 128242
negative_passages.text: Are gravitational force and gravitational time dilation proportional?
negative_passages.docid: 12986
negative_passages.text: Why does GPS depend on relativity?
negative_passages.docid: 39989
negative_passages.text: Is gravitational time dilation different from other forms of time dilation?
negative_passages.docid: 67570
negative_passages.text: Work done changes between reference frames?
negative_passages.docid: 139987
negative_passages.text: Special Relativity, 2nd Postulate -- Why?
negative_passages.docid: 44525
negative_passages.text: Chosing a reference frame in which the Earth is at rest and doesn't rotate
negative_passages.docid: 152937
negative_passages.text: Which observer's time is proper time?
negative_passages.docid: 83672
negative_passages.text: Time dilation in a gravitational field and the equivalence principle
negative_passages.docid: 102963
negative_passages.text: What sort of experiment would directly test time reversal invariance?
negative_passages.docid: 95561
negative_passages.text: Gravitational waves and time
negative_passages.docid: 78717
negative_passages.text: Does velocity or acceleration cause time dilation?
negative_passages.docid: 137110
negative_passages.text: What happens to net acceleration in a non-inertial reference frame with cenripetal force?
negative_passages.docid: 50651
negative_passages.text: Does special relativity imply that time dilation is affected by an orientation of clocks?
negative_passages.docid: 88457
negative_passages.text: Can you help me resolve this paradox for a geodesic orbit? Does it maximize proper time to sit still rather than orbit for 1 year?
negative_passages.docid: 30683
negative_passages.text: $F=ma$ calculation taking relativity into account?