When people name the most important inventions in history, light bulbs are usually on the list. They were much safer than earlier light sources, and they made more activities, for both work and play, ...
Saturday, December 21 is the shortest day of the year so we thought it would be a good time to appreciate the history of light bulbs. We walk into a dark room and flick a light switch and don’t think ...
(Original Caption) Thomas A. Edison exhibits a replica of his first successful incandescent lamp, which gave 16 candlepower of illumination, in contrast to the ultimate in today's achievement, a ...
Saturday, December 21 is the shortest day of the year so we thought it would be a good time to appreciate the history of light bulbs. RELATED: Livermore’s 123-year-old Centennial Lightbulb glows up We ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...