Beam Balance Here

Determination of the Gravitational Constant with a Beam Balance describes using a mass comparator to measure the gravitational force of 13 tons of mercury, refining the accuracy of the Newtonian gravitational constant

The balance operates in a low-seismic-noise laboratory in Sardinia, Italy. It has achieved sensitivity in the tens of mHz frequency band, limited only by thermal noise, which is essential for detecting the incredibly small forces associated with vacuum energy. Other Notable Papers & Perspectives beam balance

Review On Balance Beam Models discusses how balance beams are used in labs to assess motor skills, coordination, and the effects of neurological diseases like Parkinson's in animal models. Determination of the Gravitational Constant with a Beam