query: Can light projection on a wall travel faster than the speed of light?
positive_passages.docid: 25121
positive_passages.text: Is it really possible to break the speed of light by flicking your wrist with a laser pointer?
negative_passages.docid: 91265
negative_passages.text: Has the speed of light changed over time?
negative_passages.docid: 13817
negative_passages.text: reflection at speed of light when both mirror and viewer is travelling at the speed of light
negative_passages.docid: 65533
negative_passages.text: Does gravity slow the speed that light travels?
negative_passages.docid: 22118
negative_passages.text: If all motion is relative, how does light have a finite speed?
negative_passages.docid: 54020
negative_passages.text: Does a moving object curve space-time as its velocity increases?
negative_passages.docid: 47988
negative_passages.text: Reflection At Speed of Light
negative_passages.docid: 8865
negative_passages.text: Could gravity accelerate light?
negative_passages.docid: 128320
negative_passages.text: In superluminal phase velocities, what is it that is traveling faster than light?
negative_passages.docid: 12267
negative_passages.text: (Almost) double light speed
negative_passages.docid: 24764
negative_passages.text: Why can't light pass through walls but sound can?
negative_passages.docid: 50289
negative_passages.text: The vacuum light speed: Is it really constant, i.e., independent of location in space-time?
negative_passages.docid: 102908
negative_passages.text: Explaining to an 8-year-old why nothing can travel faster than light
negative_passages.docid: 39399
negative_passages.text: Will free-fall object into black hole exceed speed of light $c$ before hitting black hole surface?
negative_passages.docid: 22402
negative_passages.text: If I am travelling on a car at around 60 km/h, and I shine a light, does that mean that the light is travelling faster than the speed of light?
negative_passages.docid: 26363
negative_passages.text: How does faster than light travel violate causality?
negative_passages.docid: 12597
negative_passages.text: Does the speed of medium affect the path of light?