A device comprised of a base, a pan for holding the object to be measured, and three calibrated beams with sliding weights (riders) is used to determine mass in scientific settings. The combined readings from the three beamstypically graduated in hundreds, tens, and units of gramsprovide a precise measurement. For example, if the riders are positioned at 100 grams, 50 grams, and 3.2 grams, the object’s mass is 153.2 grams. This instrument does not inherently calculate; the user sums the values indicated by the rider positions.
Precise mass measurement is fundamental in numerous scientific disciplines, including chemistry, physics, and biology. Historically, this instrument has been a cornerstone of laboratory work, providing a reliable, non-electronic method for obtaining accurate mass data. This simple yet effective design requires minimal maintenance and offers robust performance without relying on external power sources. Its continuing relevance underscores the importance of fundamental measurement principles in scientific endeavors.
