An Abbe refractometer is a bench-top device for the high-precision measurement of an index of refraction.
For high-precision measurements the above types of meter are inadequate.
These results have not gained much attention from mainstream science, since they are in contradiction to a large quantity of high-precision measurements, all of them confirming special relativity.
This program thus requires both high-precision measurements and high-precision theoretical calculations.
Since the first high-precision measurements of their orbit in the 1980s, both binaries have moved only a few degrees in position angle.
Indeed, high-precision measurements of the speed of light and other crucial physical constants have revealed no detectable change in their values over recent time.
They are now attempting to explain the discrepancy, and re-examining the results of both previous high-precision measurements and complicated calculations.
It was at Super-K that the first definitive evidence for neutrino oscillations was measured, via a high-statistics, high-precision measurement of the atmospheric neutrino flux.
In 1716, Halley suggested a high-precision measurement of the distance between the Earth and the Sun by timing the transit of Venus.
FOS is designed for high-precision measurement of surface topography (see Fig.)