moving medium वाक्य

To gain more clout, Kinsley has to figure out how to make the new medium work for the largest possible audience _ i . e ., how to get people to read long pieces in a fast-moving medium that you can not easily curl up with on the couch.
According to the theories prevailing at the time, light traveling through a moving medium would be dragged along by the medium, so that the measured speed of the light would be a simple sum of its speed " through " the medium plus the speed " of " the medium.