1. The Traffic Light
Garrett Morgan created the traffic light in 1923 after witnessing a car crash at a Cleveland intersection.
2. Closed Circuit TV
In 1966, Marie Van Brittan Brown created a device that sparked the invention of home surveillance cameras. She connected a motorized security camera to a monitor so that images could be viewed on the monitor.
3. The Laser Cataract Surgey
Patricia Bath a Howard University graduate created the laserphaco probe in 1986 for laser cataract surgeries. With this device, Bath was able to restore the sight of several individuals who had been blind for over 30 years. Bath was also the first African American female doctor to receive a medical patent.
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4. The Refrigerated Truck
Perishable foods used to be transported in trucks filled with ice. Federick McKinely is responsible for making and patenting a cooling system inside trucks so that they can transport anything. So the next time you see a big semi truck hauling food you’ll know it’s McKinely’s work.
5. Identifying Explosives Spot Test
Dr. Betty Harris was a known expert in the chemistry of explosives. She is responsible for creating and patenting a spot test for identifying explosives in a field environment.
6. Illusion Transmitter
In 1980, NASA employee Valerie Thomas invented the Illusion transmitter. This device used concave mirrors to create images that appear to be real, or in front of a mirror itself. This technology was used by NASA and has been used in surgery rooms and for television movie screen productions.
7. Electret Microphone
Dr. James West was an American inventor and professor responsible for creating the electret transducer or microphone in 1962. He created an inexpensive, highly sensitive, compact microphone that is now used in anything from the microphones on your phone to tape recorders, camcorders, baby monitors and so much more.