4 ms·
I don't know how they even measure such a minute change. I mean they must need reference to compare against a stable point in space. What is that reference and
by quaintdev 3y ago
I don't know how they even measure such a minute change. I mean they must need reference to compare against a stable point in space. What is that reference and what point of city you compare against that stable reference?
- rhtgrg 3y agoThey don't even question that it is sinking. They take that as granted -- sinking 1-2mm according to "sattelite" data. Then they spend the study demonstrating why this is attributable to the weight of the buildings they estimated.
- ars 3y agoThey measured nothing at all. That's how. This is simply their calculation. And it's absolutely possible to measure this, see: https://www.thoughtco.com/measuring-plate-motion-1441107 https://www.thoughtco.com/measuring-plate-motion-1441107 and https://www.youtube.com/watch?v=S1m1tAGbfL4 https://www.youtube.com/watch?v=S1m1tAGbfL4