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@3RU7AL
the filament (the part of the bulb that produces light when heated by an electrical current) and the bulb’s atmosphere (whether air is vacuumed out of the bulb or it is filled with an inert gas to prevent the filament from oxidizing and burning out). These early bulbs had extremely short lifespans, were too expensive to produce or used too much energy.
Yes, I'll admit that the idea was older than Edison, but it was his contribution, both in the filament material and in the inner-bulb environment, that produced the first enduring incandescent light bulb that had commercial value.
Did I not say in my #28 "...so, they, too, are on that path of wish > hope > plan > execute > fail > revise plan > succeed > revise plan > improve > revise plan > achieve a perfect light?"
your memory is estimated to be roughly 2.4 petabytes.
Yes, but is that the max potential volume, or merely current state? I suspect the latter, since I am still learning and creating memory.