नाम : थॉमस अल्वा एडीसन / Thomas Alva Edison जन्म : February 11, 1847 Milan, Ohio, U.S. मृत्यु : October 18, 1931 (aged 84)West Orange, New Jersey, U.S राष्ट्रीयता : American उपलब्धियाँ (Achievements) : Invented phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. Edison is the fourth most prolific inventor in