How might the scientific advancements of the 19th century have influenced the realists?

Realists fought against Romanticism, which had dominated French literature and art since the early 1900s. Realism rebelled against the Romantic movement's exotic subject matter, overblown sentimentality, and drama.

The 19th century has been famous for Science and technology advancement. By the turn of the century, there was a tremendous amount of optimism about science's power and benefits, as well as the technologies that it could produce.

Chemistry and physics both advanced significantly in theory and practice during the century.

Public policies that allow and encourage formal and informal scientific collaboration across national borders, in recognition that scientific advancement is a global pursuit.

Public policies that strike a balance between scientific freedom and national trade and stability interests.

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Explanation:

The scientific advancements of the 19th century influenced the realist in a number of ways

first, Scientific advancement of the 19th century enabled them to embrace modernism whereby they could seek truths through the reexamination and overturning of traditional systems of values and beliefs through a new conception of artist becoming  self-publicist example are Gustave Courbet, Édouard Manet.

becasue in the south they disallowed slavery but in the north slavery was illegial this boilled into because mexico wanted slavery