underwent emergency surgery ear
infection 1906 and 1908. Several his
men had been crushed ore milling equipment, and one
experimenter had died from radiation poisoning. The desperate search find
the bugs the battery wore him out drove himself the
limit save the project.
In 1900 Edison was sprightly 53-year-old, but his
health had begun deteriorate and the early twentieth century
marked serious decline. Such was the danger this
condition that Edison decided "retire from commercial
business altogether" 1907."
The failing health the founder presented immediate
. Experimenting was dangerous work;
Edison had been burnt explosions, gased toxic fumes, and
exposed radiation the course his work.
The storage battery research had detrimental effect on
both Edison's finances and health. The mental
trauma unsuccessful R&D campaign also took its toll and
Dickson was probably not the only mucker suffer nervous
breakdown.VIII-19
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developing the battery and preparing for manufacture. became seriously ill 1900 and
again 1901. The pressures managing the Edison enterprise was
too much for Johnny Randolph, who took his own life 1908. Edison's business associates
and the general public were told that had retired from
commercial work and was now going devote himself general
scientific experimenting for his own personal enjoyment. In
1908 his secretaries announced their correspondence that "we
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no longer commercial work the lab
