The surface of water in a lake is NOT always perfectly level in the sense of being geometrically flat. It is just \u201clevel\u201d in the sense of not having any transverse gravitational field, and follows the curvature of a gravitational equipotential which at the Earth\u2019s surface bends downwards about eight inches per mile.<\/p>\n
This is obvious if you ever look across a large lake towards a distant city with tall buildings, but is also possible to notice when swimming in a much smaller lake with your eyes just an inch or two above the surface.<\/p>\n
<\/p>\n
<\/p>\n
Source: (1002) Alan Cooper’s answer to If the Earth isn’t flat, how come the surface of water in a lake is always perfectly level? Since when does water have the ability to curve and stay curved? – Quora<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":" The surface of water in a lake is NOT always perfectly level in the sense of being geometrically flat. It is just \u201clevel\u201d in the sense of not having any transverse gravitational field, and follows the curvature of a gravitational equipotential which at the Earth\u2019s surface bends downwards about eight inches per mile. This is … Continue reading Bump on Lake<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topics":[],"class_list":["post-1843","post","type-post","status-publish","format-standard","hentry","category-all"],"_links":{"self":[{"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/posts\/1843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/comments?post=1843"}],"version-history":[{"count":1,"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/posts\/1843\/revisions"}],"predecessor-version":[{"id":1845,"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/posts\/1843\/revisions\/1845"}],"wp:attachment":[{"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/media?parent=1843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/categories?post=1843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/tags?post=1843"},{"taxonomy":"topics","embeddable":true,"href":"https:\/\/qpr.ca\/blogs\/physics\/wp-json\/wp\/v2\/topics?post=1843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}