Invention_of_Light_Bulb_Presentation.pptx

inevetion of the bulb

1. The Invention of the Light Bulb From Darkness to Brilliance Your Name | Course | Date

2. Introduction What if we still lived in a world lit only by candles? - Importance of Artificial Light - Objective of the Presentation

3. The Need for Artificial Light Before the Light Bulb: - Candles, oil lamps, gas lamps (fire hazards, smoke, maintenance) - Industrial revolution increased demand for efficient lighting

4. Early Attempts at Electric Light Key figures: - 1802: Humphry Davy - Arc Lamp - 1841: Warren de la Rue - Platinum Filament - 1860s: Joseph Swan - Vacuum Bulb Problem: Short lifespan, too costly, high power use

5. Thomas Edison’s Breakthrough (1879) Key Innovations: - Carbonized bamboo filament (1,200+ hours) - Vacuum-sealed bulb - Complete electrical system (generators, wiring) - Made bulbs affordable & long-lasting

6. How the Light Bulb Works Components: - Filament (Tungsten) - Glass enclosure - Gas filling (Argon, Nitrogen) - Electrical contacts Working Principle: Electricity heats filament → Glows & emits light

7. Impact on Society - Extended working/studying hours - Industrial & economic growth - Safer cities with street lighting - Boosted electrification projects

8. Evolution of the Light Bulb Major Milestones: - 1879: Incandescent (Edison) - 1930s: Fluorescent Tubes - 1980s: CFLs - 2000s: LED Bulbs - Future: IoT-enabled Smart Lighting

9. Challenges & Solutions Problems: - Short lifespan - High energy consumption - Fragile components Modern Solutions: - Tungsten Filament (1910s) - Gas-filled bulbs - LED Technology (90% less energy)

10. Interesting Facts 💡 Edison’s team tested 6,000+ materials for the filament 💡 The Centennial Bulb has been burning since 1901 💡 Edison didn’t 'invent' the bulb—he made it practical

11. Environmental & Economic Impact Pros of Modern Bulbs: - Lower electricity costs - Longer lifespan (reducing waste) - Reduced carbon footprint (LEDs) Cons of Early Bulbs: - High energy wastage - Frequent replacements = more waste

12. Conclusion ✅ The light bulb revolutionized society ✅ Edison’s work led to city electrification ✅ Modern lighting is energy-efficient & smarter Final Thought: 'Edison didn’t just invent a bulb—he illuminated the world'

13. References & Credits Books, articles, credible websites, and image sources