Across
- 3. invented the 3 way traffic signal and a safety hood
- 5. developed inventions that led to creation of caller ID
- 7. developed a UV camera used in Apollo 16's flight
- 9. the first African-American in space
- 12. invented the multiple-effect vacuum evaporator
- 15. invented a durable hairbrush
- 16. creator of the super soaker water gun
- 19. first African American woman to receive a PhD in mechanical engineering from Howard University (the ninth character is a dash (-))
- 20. first African American to complete a residency in ophthalmology
- 21. a pioneer of the gaming industry, creating a mechanism that allowed for repeated insertion and removal of game cartridges without damaging the semiconductors
Down
- 1. first African-American female astronaut
- 2. created a line of homemade hair care products for Black women
- 4. received a patent for a wire precision resistor, which was used in radios and televisions
- 6. founded PEERCP and helped the environment
- 7. nicknamed the "termite lady" because of her extensive research on termites
- 8. a famous sculptress
- 10. invented the color PC monitor and the first gigahertz chip
- 11. invented the multiplex telegraph
- 13. developed electret transducer technology for microphones
- 14. first African American woman and first Native American to hold a pilot's license
- 17. invented three-dimensional viewing glasses
- 18. invented a lubricating cup that distributed oil over an engine's moving parts