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Margaret Butler helps assemble the ORACLE computer with Oak Ridge National Laboratory engineer Rudolph Klein. In 1953, ORACLE was the world’s fastest computer. Designed at Argonne, it was constructed at Oak Ridge. Butler was a pioneering scientist who spent her career at the forefront of computer science and nuclear energy. Her spirit, drive, and analytical talents led to a lifetime of scientific contributions during an era when women were a rarity in a major scientific setting.

Rear Admiral Grace Hopper, the oldest active duty service member when she retired from the US Navy at age 80, developed the first compiler for programming languages & invented the term "debugging".

Melba Roy, NASA Mathmetician, at the Goddard Space Flight Center in Maryland in 1964. Ms. Roy led a group of NASA mathmeticians known as “computers” who tracked the Echo satellites. The first time I shared Ms. Roy on VBG, my friend Chanda Prescod-Weinstein, a former postdoc in astrophysics at NASA, helpfully explained what Ms. Roy did in the comment section. I am sharing Chanda’s comment again here: “By the way, since I am a physicist, I might as well explain a little bit about what

Grace Hopper - The inventor of the COBOL computer language - Instrumental to the development of our current digital lifestyle

Ellen Swallow Richards: industrial & environmental chemist in the 19th-century US, pioneering the field of home economics. She was the first woman admitted to MIT & its first female instructor; the first woman in the US accepted to any school of science or Technology, & the first American woman with a degree in chemistry. And she has a cat on her shoulder.

TIME.comfrom TIME.com

The 25 Most Powerful Women of the Past Century

Two-time Nobel laureate Marie Curie discovered polonium and radium, founded the concept of radiology and — above all — made the possibility of a scientific career seem within reach for countless girls and women around the world. The first woman to receive the Nobel Prize and the first female Professor of General Physics in the Faculty of Sciences at the Sorbonne in Paris, Curie was beloved by her colleagues for her calm, singular focus, lack of pretense and professional drive. Her work with…

BuzzFeedfrom BuzzFeed

34 American Lady Scientists Who Changed The World

Roger Arliner Young (1889–1964) was a zoologist and biologist and the first African-American woman to receive a doctorate in zoology. During her long career she studied radiation, paramecium, and hydration and dehydration of living cells. | 34 American Lady Scientists Who Changed The World

Annie Easley on the cover of NASA’s Science and Engineering Newsletter, circa 1960s. Easley’s career at NASA spanned 34 years, where she developed computer programs related to alternative energy solutions, including wind and solar power, energy conversion, and vehicular batteries.

NASAfrom NASA

She Was a Computer When Computers Wore Skirts

Katherine Johnson, research mathematician and scientist who worked at NASA’s Langley Research Center 1953 to 1986, calculated the trajectory of the early space launchesKristina Johnson, optoelectronic processing systems and liquid crystal devices, IEEE Fellow 2003, ABI Women of Vision Award for Leadership 2010, US Under Secretary for Energy 2009-2010

Nettie Stevens was a cytogeneticist. She received her PhD from Bryn Mawr in 1903 and then studied in Europe. She is the discoverer of the chromosomal determination of sex (those X and Y chromosomes that determine whether the baby is a boy or girl) and published about thirty-eight professional papers.

Women in Science - A Selection of 16 Significant Contributors, from The San Diego Supercomputer Center of USD La Jolla. Bios of 16 distinguished women scientists from the 1800s until now. Also includes mathematics, statistics, computers, and management. Good source material here. Going in History > Women's History

Irene Curie Joliot. The elder daughter of Pierre and Marie Curie, Irène Curie-Joliot (1897-1956) followed in her parents' footsteps into the lab. She received a Nobel Price in chemistry in 1935. The Granger Collection, New York. Photos from: "Ten Historic Female Scientists You Should Know"

WOMEN IN SCIENCE AND ENGINEERING: In honor of International Women's Day and Women's History Month, the Smithsonian Institution Archives (SIA) is pleased to present a sampling of images documenting women scientists and engineers from around the world, most of whom were pioneers in their respective fields, or were the first women to receive advanced graduate degrees in their discipline.

Mashablefrom Mashable

Teen Develops Computer Algorithm to Diagnose Leukemia

She may be only 18, but Brittany Wenger built a custom, cloud-based artificial neural network that can help with leukemia diagnosis.

Aeronautical engineer Laurel van der Wal had a career as a model, art instructor, & deputy sheriff before training to be a pilot. At UC she became an aeronautical engineer, winning the Society of Women Engineers Achievement Award in '61 when she was head of bioastronautics at Space Technology Labs. The press release emphasized that the "pretty head of bioastronautics at Space Technology Laboratories, Inc." was a "former model" even though LA Times had just named her Woman Scientist of the…

Deborah Estrin, Professor of Computer Science UCLA, pioneer in the field of embedded network sensing and is the director of the Center for Embedded Networked Sensing (CENS) at UCLA, Fellow IEEE 2004, ACM Fellow 2000, Fellow of the American Academy of Arts and Sciences, 2007 Anita Borg Institute Women of Vision Award for Innovation, WITI Hall of Fame 2008

Susana Reyes is a nuclear engineer at the Livermore Lab, and also the 2012 recipient of the American Nuclear Society Mary Jane Oestmann Professional Women's Achievement Award. In this photo, Susana shares career information with students at a local science and technology career fair.

During World War II, Josephine Baker served with the French Red Cross and was an active member of the French resistance movement. Using her career as a cover Baker became an intelligence agent, carrying secret messages written in invisible ink on her sheet music. She was awarded honor of the Croix de Guerre, and received a Medal of the Resistance in 1946.

October 15 is Ada Lovelace Day, named for the world's first computer programmer. A Victorian-era mathematical genius, Lovelace was the first to describe how computing machines could solve math problems, write new forms of music, and much more. Lovelace is hardly the only woman to be erased from the history of her own work.