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23 hours ago · Sofia Danova (1879–1946), Bulgarian teacher and philanthropist, first Bulgarian woman to graduate in mathematics. Christine Darden (born 1942), American aeronautical engineer who researches sonic booms. Geraldine Claudette Darden (born 1936), one of the first African-American women to earn a PhD in mathematics.
Jun 14, 2024 · USS Texus was an X class prototype, mostly the result of reverse engineering of a captured alien spaceship. Its light but strong hull slipped over the water under the power of an anti-gravity engine. Its shape and cloaking device made it impossible to detect with conventional radar, and could become invisible to optical equipment for short periods.
