How the Color Blue Changed Lighting

The video explores the evolution of lighting technology, highlighting the significant impact of LEDs on energy efficiency and environmental sustainability. It traces the history from incandescent and fluorescent lights to the invention of LEDs, focusing on the breakthrough of the blue LED by Shuji Nakamura. The video emphasizes the global implications of LED technology in reducing energy consumption and greenhouse gas emissions, particularly in developing regions.

What percentage of global electricity consumption is accounted for by gadgets lighting?

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What are the advantages of LED bulbs compared to incandescent lighting?

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What significant discovery did Japanese scientists make in the 1990s regarding LED technology?

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Who were the inventors of the first practical light emitting diode?

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What was the key ingredient that proved difficult to grow in a lab for creating blue LEDs?

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What motivated Shuji Nakamura to use gallium nitride for his research?

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What impact could switching all lighting to LED have on carbon dioxide emissions?

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