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Several historical figures have reported that certain great ideas came to them in dreams or visions. In science, mathematics, and engineering, such figures include:
*[[Isaac Singer]]: idea for the [[sewing machine]] came from a vision of cannibals running with their spears going up and down
*[[August Kekulé]]: discovered the structure of the [[benzene ring|benzene]] from a vision or dream of children playing in a circle and holding hands (see [[double bond]] in [[organic chemistry]]).
*[[Ramanujan]] claimed that most of his ideas came to him in dreams.<ref>He claimed that the goddess of Namakkal inspired him with formulae in dreams. [http://uzweb.uz.ac.zw/science/maths/zimaths/ramanhdy.htm Ramanujan] by [[G.H. Hardy]]</ref>
==Notes==
<references />
==Links==
* [http://www.storyofmathematics.com/20th_hardy.html]