> the researchers looked for centimeter-scale bumps caused by the gravitational influence of a seamount Remarkable and even puzzling on two counts: 1) Gravity

> the researchers looked for centimeter-scale bumps caused by the gravitational influence of a seamount Remarkable and even puzzling on two counts: 1) Gravity is so weak at human scales we tend to forget that each and every body leaves a gravitational imprint. Yet a mountain sized mass creates detectable influence. 2) Centimeter-sized height sea level differences are detectable from space. Pressumably this integrates over long periods of wave "noise" and tidal swells that are significantly higher than a centimeter...