Edison Patents Phonograph

February 19, 1878

Thomas Alva Edison was awarded U.S. Patent No. 200,521 for the phonograph, the first device to both record sound and play it back. The phonograph was a result of his work on two other devices, the telephone and the telegraph. … Continue reading

Posted in EVENTS, SCIENCES, THING | Tagged , , , | Comments Off

Light Bulb Race: Edison v. Swan

February 3, 1879

Thomas Edison is credited with having invented the incandescent light bulb. However, scientists and inventors have actually been working on developing a long-lasting and cost effective bulb for almost eighty years before Edison joins the race.¬†In fact, Humphrey Davy develops¬†the … Continue reading

Posted in EVENTS, SCIENCES | Tagged , , | Comments Off