Beam Balance -

The balance serves as a prototype for the Archimedes experiment , which aims to measure the interaction between electromagnetic vacuum fluctuations and the gravitational field.

An interesting and highly relevant paper on the subject of the is: beam balance

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 The balance serves as a prototype for the