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Their method of depositing single-layer films onto substrates culminated in the Langmuir-Blodgett trough, a lab apparatus the two invented to apply films and measure the resulting phenomena.

Langmuir was taken with Katherine’s great enthusiasm for science and encouraged her to continue studying math and physics so she could come back and claim a place in the lab.

Katharine graduated with a BA from Bryn Mawr in 1917.

One day, Katharine tried dipping a metal plate into one of Langmuir’s films.

The plate attracted some of the molecules and they formed the same type of mono-molecular coating, now known as a Langmuir-Blodgett film, on its surface.

Katharine was a surface chemist for General Electric and a visionary engineer who discovered a way to make ordinary glass 99% transparent.Her invention enabled the low-cost production of nearly invisible panes and lenses for everything from picture frames and projectors to eyeglasses and spyglasses.They eventually settled in New York City and Katharine was enrolled at Rayson, a prestigious private boarding school for girls.When she was fifteen, Katharine won a scholarship to Bryn Mawr for the promise she showed in science and mathematics.