3 ms·
going through the earth is a shorter distance but unfortunately light speed is slower that way
by bawana 9y ago
going through the earth is a shorter distance but unfortunately light speed is slower that way
- ec109685 9y agoWhy is light slower that way?
- Simon_says 9y agoI'm not sure if this is what he's referring to, but light (and the passage of time) is slower in a gravity well. A geodesic in spacetime will minimize the time it takes for light to travel between two points. In the case of going through the Earth, the geodesic will be only slightly deflected from what you would consider the straight-line path through a sphere in a flat spacetime.