In 1912 was released a very interesting book engineer V. A. Aleksandrov, "What you need to know to spend less for electricity."
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The Foreword sounds interesting. And electric light even cheaper than any other.
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Reading this book you forget that it was written more than a hundred years ago. The description fits the present.
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Surprised by the mention of fire and security alarm systems. Nowadays, every house has such.
A saying about bad workmen, which in good companies do not exist, raises a smile. Like for 100 years, nothing has changed.
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Light bulbs, cartridges, sockets and plugs since that time, is also virtually unchanged.
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I was surprised by the presence of cigar-shaped or tubular bulb. What is this lamp?
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Types of lamps were different. Filaments inside was bigger than it is now. I wonder how did a carbon filament?
Judging by the bulbs of one watt and half watt, power supply was smaller than it is now. Now the light bulb of the flashlight power like these old lamps.
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By the way about that would shake the light bulb energized. I did when the thread was hanging on a single barbel, in principle worked.
The book is quite a lot of explains how to use bulbs in the advertisement. And is a running line and alternately appearing words already being used. Not to mention the electric illumination during the holidays.
Can't get past electric drills at that time.
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In the book there is a description of appliances. Fans, room heaters and even lighting. Curling iron hair "air shower" (Hairdryer). Electric samovar and an electric iron.
And even an electric machine for wrinkle removal!!!
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Electric waxing of floors and the washing machine!!!
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The book is still a lot of descriptions of all electrical equipment. Lifts, electric brushes for combing horses, stage lights with special effects.
But most of all, my attention was drawn to the electricity meter, which could be two tariff!!!
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And here is the two-tariff counter.
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So people lived in 1912. Moreover, electricity was available to all. Even in rural areas.
After reading this book, I was visited by doubts.
We are certainly living in times of technological progress?