Nick Holonyak and the first practical visible LED A coal-miner’s son helped change how the world makes light. At fifteen, Nick Holonyak Jr. helped repair flood damage on the Illinois Central Railroad,…
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Thomas Edison and the light bulb
Long before electric light became a part of daily life, illumination meant fragile flames, gas lines, and constant fire hazards. While Thomas Edison was not the first to imagine the incandescent bulb,…