**Granville T. Woods: Also known as the "Black Edison," Woods worked in various fields, including telegraphy and electrical engineering. He invented the "troller," a grooved metal wheel that allowed streetcars to collect electric power from overhead wires, which became a standard component of early streetcar systems.** - Image #3 <@1125226580306837565>
Granville T. Woods Also known as the Black Edison, Woods worked in various fields, including telegraphy and electrical engineering. He invented the troller, a grooved metal wheel that allowed streetcars to collect electric power from overhead wires, which became a standard component of early streetcar systems.