'taco' warning, anybody?...see previous posts:
https://en.wikipedia.org/wiki/Very-long-baseline_interferometry
However, since the VLBI technique measures the time differences between the arrival of radio waves at separate antennas, it can also be used "in reverse" to perform earth rotation studies, map movements of tectonic plates very precisely (within millimetres), and perform other types of geodesy.
https://en.wikipedia.org/wiki/Geodesy
skornik had been most interested in 'higher geodesy', let us say:
Geodesy in the German-speaking world is divided into "higher geodesy" ("Erdmessung" or "höhere Geodäsie"), which is concerned with measuring Earth on the global scale, and "practical geodesy" or "engineering geodesy" ("Ingenieurgeodäsie"), which is concerned with measuring specific parts or regions of Earth, and which includes surveying. Such geodetic operations are also applied to other astronomical bodies in the solar system. It is also the science of measuring and understanding Earth's geometric shape, orientation in space, and gravitational field.
....and when you hit the ball out of court, let us say....see previous notes upon nasa 'n' baseball programming:
anyway, what was it about dr Christian jessen, then - Robert?
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