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

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.