She was a brilliant rocket scientist who followed her husband from job to job and took eight years off from work to raise three children. “The world’s best mom,” her son Matthew said.
In the early 1970s, Mrs. Brill invented a propulsion system to help keep communications satellites from slipping out of their orbits.
The system became the industry standard, and it was the achievement President Obama mentioned in 2011 in presenting her with the National Medal of Technology and Innovation.
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