Born in Sunderland, he studied chemistry and moved to Tyneside where, after many years of persistent effort, he created the first successful 'incandescent filament electric lamp' - the light bulb.
When Edison patented the light bulb in 1880, its exact value was hard to gauge; widespread electrification was still decades away. Still, Johnson, Edison and others invested $35,000 to form the ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback