18 meters of air, ~12 meters of glass, ~36 meters of going through glass instead of air, and a lot of meters for going through faster glass rather than slower glass when connection is tightened (and don't think of the signal bouncing at an angle and arriving slower, that's not how fibre optics works). If they have a long glass cable, you can be certain that delay has to be actually measured because speed is temperature dependent.
The point of the conversion from nanoseconds to meters is to have some sort of intuitive reference just how much behind the signal must get via lousy connection.
18 meters of air, ~12 meters of glass, ~36 meters of going through glass instead of air, and a lot of meters for going through faster glass rather than slower glass when connection is tightened (and don't think of the signal bouncing at an angle and arriving slower, that's not how fibre optics works). If they have a long glass cable, you can be certain that delay has to be actually measured because speed is temperature dependent.
And in terms of the actual change in how far the light travels - quite possibly 0 meters.
...The point of the conversion from na
A mundane cause for a surprising result. Consider this unconfirmed for now, however unsurprising it sounds.
Source: Science/AAAS