Questions with the keyword 'light bulb'

• who made the first light bulb and how did he/she make it by 285ghtg37 to Dervil, Moises, Pramod, Saoirse, Stephen Comments: (No comments so far )
• How bright is a light bulb ?? by niamh05 to Moises Comments: (No comments so far )
• how many light bulbs would you need to be as bright as the sun by m and m 2004 and 1 other. to Dervil, Moises, Pramod, Saoirse, Stephen Comments: (so far, 3s comments )