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391.40 molads is about 20,000 times as long as The First light bulb test (Edison, 1879)
In other words, it's 19,100 times the length of The First light bulb test (Edison, 1879), and the length of The First light bulb test (Edison, 1879) is 0.00005240 times that amount.
(Thomas Edison's filament Thread No. 9) (1879) (total time)
Lit at 1:30am on October 22nd, 1879, the first Edison completed his first majorly successful test of his light bulb, which continued to burn for 0.0205 molads until the bulb glass succumbed to the heat and cracked, extinguishing the filament. Within 37.10 molads of his success, Edison was selling 45,000 light bulbs per day to large companies across the country.
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