Who Invented The Light Bulb?

In 2018 the LED lighting market was worth almost $52 billion and is expected to reach over $112 billion by 2024. But 200 years before LEDs were a multibillion-dollar industry, and decades before Edison showed up, light bulbs were an idea just starting to enter the minds of curious scientists.

• #تحصیلات_و_یادگیری
• #cnbc
• #business
• #news
• #finance_stock
• #stock_market