Here's a breakdown of different types of signal lights and their inventors:
Traffic Signals:
* Early forms: While not technically a signal light, Garrett Morgan (1923) invented a three-position traffic signal that was a precursor to the modern traffic light.
* Electric traffic light: The first practical electric traffic signal is credited to Lester Wire in 1914.
* Color signals: The three-color system we use today is credited to James Hoge (1917), who later patented it.
Signal lights in automobiles:
* Turn signals: The first turn signal using a mechanical arm was patented by Alfred L. Boerner in 1914.
* Electrical turn signals: Electric turn signals were later developed and became standard in automobiles.
Other signal lights:
* Morse code: The first practical use of signaling with light was with Samuel Morse's invention of the telegraph in 1837.
* Lighthouses: Lighthouses have been used since ancient times, but modern lighthouse systems using lights were invented in the 18th century.
It's important to note that the development of signal lights involved contributions from many individuals over time. There's no one "inventor" but rather a series of inventors who built upon each other's work.
