Although the measured speed of light has decreased only about 1 % during the past three centuries, the decrease is statistically significant,
because measurement techniques can detect changes thousands of times smaller.
But early efforts failed, possibly
because the measurement techniques of the time were not sufficiently detailed, he says.
Not exact matches
«Notably, this progression has been largely invisible to previous work
because its primary antecedents occur behind closed doors, out of view of many
measurement techniques.»
Because the
technique makes repeated
measurements rapidly over the same path, it is immune to signal distortions caused by atmospheric turbulence.
Noise has traditionally been difficult to study in biology,
because most biological
techniques, such as
measurement of gene activity, average the output of many cells, erasing individual variability.
Because of an old - fashioned bra
measurement technique (called «Plus 4») and basic supply and demand.
Moreover,
because of the effects of wind speed, evaporation, and precipitation intensity, different types of rain gauge, and observation
techniques induce different errors in precipitation
measurements.
The belief that the high precision of FNI allows to overcome this limitation is an illusion,
because the limitation is of logical nature and not caused by insufficient precision of a
measurement technique.