query: About light in the universe
positive_passages.docid: 151176
positive_passages.text: If I point a torch up, would the photons hit anything?
negative_passages.docid: 77372
negative_passages.text: "Speed" of Gravity and Speed of Light
negative_passages.docid: 129566
negative_passages.text: What happens to light in a perfect reflective sphere?
negative_passages.docid: 144256
negative_passages.text: Light formed by the sun?
negative_passages.docid: 81158
negative_passages.text: Light "diode" and 2nd law of thermodynamics
negative_passages.docid: 28070
negative_passages.text: The frequency of the white light
negative_passages.docid: 12597
negative_passages.text: Does the speed of medium affect the path of light?
negative_passages.docid: 155738
negative_passages.text: Can light be a spinor?
negative_passages.docid: 79708
negative_passages.text: Is the energy density of vacuum uniform in the whole universe?
negative_passages.docid: 41750
negative_passages.text: The age of the universe
negative_passages.docid: 31156
negative_passages.text: Is light amplitude spatial?
negative_passages.docid: 26074
negative_passages.text: Seeing strange things in light
negative_passages.docid: 138493
negative_passages.text: How does light oscillate?
negative_passages.docid: 115786
negative_passages.text: Speed of gravitational waves and light
negative_passages.docid: 128577
negative_passages.text: Intensity of light
negative_passages.docid: 56079
negative_passages.text: Do two beams of light attract each other in general theory of relativity?
negative_passages.docid: 37941
negative_passages.text: Can light travel slower than the maximum?