4 ms·

I'm not buying this. Someone please explain, in detail, how 2.2mm of sea level can be measured precisely? What kind of tolerance are we talking about? 2.2mm +/-

• noiv 7y ago
  If you have volume and divide by surface area you'll get height.
  • assblaster 7y ago
    So is the sea level being measured or estimated?
  • pupdogg 7y ago
    How do you accurately (down to mm precision) determine volume of a moving target?
  • bregma 7y ago
    ... and what's the precision on the volume? How many significant digits?