Black History Month: Inventors Who Changed Our World

12345678
Across
  1. 2. First Black female ophthalmologist to invent Laserphaco probe, to eliminate cataracts.
  2. 4. Weary of cold New Jersey winters, this inventor designed a natural gas furnace.
  3. 6. Known as "the wealthiest colored man in the Northwest" who created an automatic device to open and close elevator doors.
  4. 7. Black nurse who contrived an early security unit, later patented as a home security system in 1969.
  5. 8. In 1989, this aerospace engineer and entrepreneur devised one of the world's best selling toys, the Super Soaker water gun.
Down
  1. 1. Social activist and businessman who invented the improved traffic signal, later patented as the three-way traffic light.
  2. 3. IBM chief engineer who aided in the creation of IBM'S first color monitor and first gigahertz processor.
  3. 5. Chef and restaurateur who invented the first potato chip.