The Notebooks of Leonardo Da Vinci

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Author: Leonardo da Vinci

949.
THAT THE OCEAN DOES NOT PENETRATE UNDER THE EARTH.

The ocean does not penetrate under the earth, and this we learn from the many and various springs of fresh water which, in many parts of the ocean make their way up from the bottom to the surface. The same thing is farther proved by wells dug beyond the distance of a mile from the said ocean, which fill with fresh water; and this happens because the fresh water is lighter than salt water and consequently more penetrating.

Which weighs most, water when frozen or when not frozen?

FRESH WATER PENETRATES MORE AGAINST SALT WATER THAN SALT WATER AGAINST FRESH WATER.

That fresh water penetrates more against salt water, than salt water against fresh is proved by a thin cloth dry and old, hanging with the two opposite ends equally low in the two different waters, the surfaces of which are at an equal level; and it will then be seen how much higher the fresh water will rise in this piece of linen than the salt; by so much is the fresh lighter than the salt.

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Chicago: Leonardo da Vinci, "949. That the Ocean Does Not Penetrate Under the Earth.," The Notebooks of Leonardo Da Vinci, trans. Richter, Jean Paul, 1847-1937 in The Notebooks of Leonardo Da Vinci (New York: Dover Publications, Inc., 1970), Original Sources, accessed April 20, 2018, http://www.originalsources.com/Document.aspx?DocID=CMV497VMYCAAH26.

MLA: Vinci, Leonardo da. "949. That the Ocean Does Not Penetrate Under the Earth." The Notebooks of Leonardo Da Vinci, translted by Richter, Jean Paul, 1847-1937, in The Notebooks of Leonardo Da Vinci, New York, Dover Publications, Inc., 1970, Original Sources. 20 Apr. 2018. www.originalsources.com/Document.aspx?DocID=CMV497VMYCAAH26.

Harvard: Vinci, LD, '949. That the Ocean Does Not Penetrate Under the Earth.' in The Notebooks of Leonardo Da Vinci, trans. . cited in 1970, The Notebooks of Leonardo Da Vinci, Dover Publications, Inc., New York. Original Sources, retrieved 20 April 2018, from http://www.originalsources.com/Document.aspx?DocID=CMV497VMYCAAH26.