Home›Sources›Gravity, Inertia, and the Two Bulges (NOAA Tides and Currents Tutorial)SourcesGravity, Inertia, and the Two Bulges (NOAA Tides and Currents Tutorial)Government Ocean Science Agency PageCitation FormatsGeneral ReferenceGeneral Reference Citation TextNature Atlas. "Gravity, Inertia, and the Two Bulges (NOAA Tides and Currents Tutorial)." Accessed August 30, 2026. https://nature.interactiveatlas.org/sources/noaa-tides-and-currents-gravity-inertia-two-bulges.Copy General ReferenceAPA StyleAPA Style Citation TextNature Atlas. (n.d.). Gravity, Inertia, and the Two Bulges (NOAA Tides and Currents Tutorial). Retrieved August 30, 2026, from https://nature.interactiveatlas.org/sources/noaa-tides-and-currents-gravity-inertia-two-bulgesCopy APA StyleBibTeXBibTeX Citation Text@misc{natureatlas-gravity-inertia-and-the-two-bulges-noaa, author = {Nature Atlas}, title = {Gravity, Inertia, and the Two Bulges (NOAA Tides and Currents Tutorial)}, year = {2026}, url = {https://nature.interactiveatlas.org/sources/noaa-tides-and-currents-gravity-inertia-two-bulges}, note = {Accessed August 30, 2026} }Copy BibTeXReference and ClassificationVerifiedA NOAA National Ocean Service tides and water levels tutorial explaining why gravity produces one tidal bulge facing the Moon while inertia produces a second bulge on the opposite side of the Earth, with a note on the Sun's own contribution.FactsSourcesClaims Backed By This Source (9 claims)Comments (0)Reader Challenges (0 open reader challenges)FactsPublisherWell-attestedNOAA National Ocean ServiceURLWell-attestedhttps://oceanservice.noaa.gov/education/tutorial_tides/tides03_gravity.htmlSource TypeWell-attestedscientific-agencySourcesGravity, Inertia, and the Two Bulges (NOAA Tides and Currents Tutorial)NOAA National Ocean ServiceView the SourceClaims Backed By This Source (9 claims)This source backs 9 claims across the atlas. As facts: 7 well-attested. As cited relationships: 1 connected. Plus 1 entities citing it as a general reference with no single fact or relationship attached.Disposition By TopicArticles, 6 claims: 4 well-attested, 1 connected, 1 general references.Sources, 3 claims: 3 well-attested.Well-attested7ArticlesTides: The Moon, the Sun and the Rhythm of the SeaSourcesGravity, Inertia, and the Two Bulges (NOAA Tides and Currents Tutorial)Connected1ArticlesTides: The Moon, the Sun and the Rhythm of the SeaGeneral References1ArticlesTides: The Moon, the Sun and the Rhythm of the SeaComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0 open reader challenges)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.View At A Past YearThe atlas records no dated fact of its own for this entry, so there is no other year to choose.Show This Year