¿what is the domain of validity of inverse square laws of newton and coulomb? I think (correct me if this is false) that at the small scale these laws have been verified accurately , but ¿what happens with large distances? :uhh: . ¿Have been done an experiment which measured the electrical force between charges at kilometric distances? (for example) . ¿Are there any experiments designed to verify these laws now? . I would like to know which is the experimental basis of these laws and most recent investigations about the topic, thanks for replying in advance.