Dark matter is believed to make up a large fraction of the matter in the universe, yet its true nature remains unknown. Most past experiments have focused on heavier dark matter candidates, while much ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Torsion balances are used to measure ...

Torsion balances are used to measure weak natural forces. Torsion balances generally consist of a straight rod with masses attached to each end, suspended from a wire. It is then encased in metal to ...