February 7, 1867.
News from the East African colony had not yet reached Europe, so Ernst still did not know that the colony had taken Zanzibar.
Today was an important day for Ernst. The improved electric lamp could finally be put to commercial use.
In fact, the first person to invent the electric lamp was the British Humphry Davy. Using two thousand batteries and two carbon rods, he created the Arc Lamp. However, this Arc Lamp was too bright, generated severe heat, and was not durable, making large-scale adoption impossible.
In 1854, Heinrich Göbel, a German who had immigrated to the United States, invented the first practical electric lamp. It remained lit for four hundred hours, but he did not apply for a patent.
In 1860, the British Joseph Swan created the Carbon Filament Lamp, which was already the most mature solution. However, Swan was constrained by the Vacuum Technology of the era, so the lamp he invented could not operate for long periods. Historically, he would not complete his improvements and apply for a patent until 1878.
As for now? Ernst was going to bid him goodbye. Having broken through Vacuum Technology, Berlin Electric Company became the first company in this time and space to patent and mass-produce a mature, commercially viable electric lamp.
"Ernst, it has already been lit for more than a dozen hours without the slightest problem. This is absolutely an invention that spans the ages."
Prince Constantin said this as he gazed in astonishment at the electric lamp still glowing before him.
As the driving force and investor behind the invention of the electric lamp, Ernst had naturally installed this product of a new age in his own home first.
Just yesterday, after the workers had finished the installation, Ernst had kept more than twenty