Black Mathematicians and Scientists

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Across
  1. 2. First Black president of the American Psychological Association
  2. 3. Invented car devices
  3. 6. Designed long-distance flight airplane
  4. 7. Performed first successful open-heart surgery on humans
  5. 9. lauded for humanitarian achievements and earned 130 chemical patents
  6. 11. First African American to study and work as a professionally trained nurse in the United States
  7. 12. Ethnic studies in education and
  8. 13. Proved that insects can hear and can distinguish pitch
Down
  1. 1. Invented ironing board that allows sleeves to be ironed.
  2. 2. Discovered many uses for vegetables and fruit, especially peanuts
  3. 4. Invented refrigerated truck systems
  4. 5. Helped with treatment for leprosy with chaulmoogra oil.
  5. 8. First African-American woman to receive a patent for a web-based software invention
  6. 10. First African-American department chair at Harvard Medical School.