Apologies for the delayed reply -- HN's noprocrast setting is a powerful taskmaster. What we do is search for deviations from Newton's inverse square law. Depe

Apologies for the delayed reply -- HN's noprocrast setting is a powerful taskmaster. What we do is search for deviations from Newton's inverse square law. Depending upon the distance over which an experiment is performed, the ISL can be correct to a precision as high as ~10^-10 [1]. In particular, our group works to test whether the inverse-square law (or indeed gravity at all) happens as predicted at distances shorter than 100 microns [2]. It still amazes me that at distances shorter than half the diameter of a human hair, nobody has any idea whether gravity even happens. Newton's early observations (and Kepler's) have been replicated many times -- there is no risk of a major replication-crisis upheaval there. [1] https://arxiv.org/abs/hep-ph/0307284 https://arxiv.org/abs/hep-ph/0307284 (Figure 4) [2] https://arxiv.org/abs/hep-ph/0611184 https://arxiv.org/abs/hep-ph/0611184