Cover art from the book, “Timeless Thomas: How Thomas Edison Changed Our Lives,” by Gene Barretta
Continue reading
Tag Archives: edison
Thomas Edison quote Posters
nikola tesla thomas alva edison invention inventor genius bright brilliant smart intelligent intelligence electricity electrical engineer wise science scientist professor phd teacher science scientist research experiment education quote quotation geek nerd dork electric teaching imagination
Edison light bulb postcard
The incandescent light bulb or incandescent lamp is a source of artificial light that works by incandescence. An electrical current passes through a thin filament, heating it until it produces light. The enclosing glass bulb prevents the oxygen in air from reaching the hot filament, which otherwise would be destroyed rapidly by oxidation. The operating principle of an incandescent lamp is similar to that of blackbody radiation.