Born 1847. Died 1931.
Where the hours went: In the lab, trial after trial.
He had a few months of school.
He turned a lab of men into the first invention factory.

A lab that ran trials day and night at Menlo Park.
No fewer than six thousand plant materials tested for one filament.
Electric light and power for whole cities, recorded sound and the motion picture.
Most men think the titans got there on talent.
They got there on where the hours went.
The legendHe failed a thousand times before the light bulb worked.
The repsNo fewer than six thousand plant materials tested for the filament, by his own count.
A lab of men running trials day and night at Menlo Park.[3][4]
The legendHe found ten thousand ways that would not work.
The repsHe said several thousand, in 1910, about the storage battery.
That job took him about ten years.[1][6]
The legend counts failures.
The record counts reps.
Thousands of trials, then a lamp that burned for more than twelve hundred hours.
Every year the record allows, with its source.
Louis Bachrach, Bachrach Studios, Thomas Edison, about 1922. Public domain, via Wikimedia Commons.
In the lab, with the team, day and night.
On the next trial, not the last one.
Ready to start over at sixty seven.