Adobe Acrobat Pro DC is a comprehensive solution for managing PDFs. This article covers the key features you must know to create and edit PDFs like a pro. Adobe Acrobat Pro DC is a comprehensive solution for managing PDFs.
No, it wasnât Thomas Edison. Light bulbs were in use long before Edison applied for the patent in 1879. British inventor Humphry Davy invented an incandescent light bulb in 1801 and created the âarc lampâ in 1809. In 1835, Scottish inventor James Bowman Lindsay demonstrated a constant electric light in Dundee.
This is an early sketch from Thomas Edison of his light bulb. Thomas Edisonâs serious incandescent light bulb research began in 1878, filing his first patent later that yearâ¦âImprovement In Electric Lightsâ in October 1878. His experiments involved the fabrication and testing of many different metal filaments, including platinum.