retroelectro
Ohm's Day By David Ray Cyber City Circuits March 16
1840s - The dashes and dots of the telegraph With the dissolution of the Holy Roman Empire in the recent past, Europe was quickly becoming full of unrest and military action. The superpowers of the time knew that fast and reliable communication would win the upcoming conflicts for territory. By the 1840s, the electrical telegraph had become the cutting edge of technology. Quickly, all over Europe, telegraph lines were installed on overhead poles, along railways and highways, and through mountains and fields. Overhead cable only required little in the way of planning or measurement. In 1843, Sir Charles
March 16: Ohm’s Day March 16, 2024 marks Georg Ohm’s 235th Birthday. As you
already know, the ohm is the unit of electrical resistance in a conductor such that a constant current of one ampere produces a potential difference of one volt. The international standardization of the 'ohm' to denote the practical unit of electrical resistance dates to the first International Electrical Congress of 1881 in Paris. It was here that the units we are all fond of today… amperes, volts, farads… were all etched in stone. That is the ending of this story. It started many years earlier.
we get technical
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