However, the latter two apparent contrasts may be the result of differences in measurement technique.
As the 19th century progressed so did the measurement techniques.
Therefore, handwriting movement has been researched since measurement techniques became available.
For this reason, improved data and measurement techniques may be available in the future.
The high end limitations are imposed by both measurement techniques and for scientific reasons.
But the current measurement techniques shed little light on these points.
Hair analysis has recently become a new, noninvasive measurement technique.
"We're also building in new measurement techniques that were not technically possible before."
You will gather from this that there is no list of measurement techniques.
As a result, it forms the basis of most two-pulse measurement techniques.