Work
Blodgett was hired by General Electric as a research scientist as soon as she had received her Master's degree in 1920. She was the first woman to work as a scientist for General Electric Laboratory in Schenectady, New York. During her research, she often worked with Langmuir, who had worked with her father. Blodgett and Langmuir worked on monomolecular coatings designed to cover surfaces of water, metal, or glass. These special coatings were oily and could be deposited in layers only a few nanometers thick. It wasn’t until the 1930s that she discovered uses for the coatings.
In 1938, she devised a method to spread these monomolecular coatings one at a time onto glass or metal. She used a barium stearate film to cover glass with 44 monomolecular layers that made the glass more than 99% transmissive, creating "invisible" glass. This coating is now called the Langmuir-Blodgett film. One such use for her glass was in the stunning cinematography of the popular film, Gone with the Wind (1939). The Langmuir-Blodgett trough is also named after her. She also invented the color gauge, a method to measure the molecular coatings on the glass to one millionth of an inch.
The "color gauge" employs the concept that different thicknesses of coatings are different colors. She saw that soap bubbles were different colors and discovered that at each place that the soap bubble was a new color, it has a different thickness. Before her invention, the best instruments were only accurate to a few thousandths of an inch. She made a glass "ruler" to show different colors corresponding to the thicknesses. Measuring thickness became as simple as matching colors. her other inventions were poison gas adsorbents, methods for deicing aircraft wings, and improving smokescreens.
Dr. Blodgett was issued eight US patents during her career. She was the sole inventor on all but two of the patents. On those two she was the primary inventor with Vincent J. Schaefer as co-inventor. Blodgett also published over 30 technical papers in various scientific journals.
Read more about this topic: Katharine Burr Blodgett
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“We visualized her less as a woman at work than as a light widening as it brightened.”
—Elizabeth Bowen (1899–1973)
“Do not put off your work until tomorrow and the day after. For the sluggish worker does not fill his barn, nor the one who puts off his work; industry aids work, but the man who puts off work always wrestles with disaster.”
—Hesiod (c. 8th century B.C.)