By Eric Knorr
When Edison invented the lightbulb, it had a problem: It needed to be hardwired to the lamp. Hence the Edison screw, which became the standard that, to this …read more
Source:: OpenSource
By Eric Knorr
When Edison invented the lightbulb, it had a problem: It needed to be hardwired to the lamp. Hence the Edison screw, which became the standard that, to this …read more
Source:: OpenSource