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Thomas Alva Edison - 135th anniversary of the construction of the bulb silver proof

Czech coins catalogue - Thomas Alva Edison - 135th anniversary of the construction of the bulb silver proof Czech coins catalogue - Thomas Alva Edison - 135th anniversary of the construction of the bulb silver proof

Original name 'Thomas Alva Edison - 135. výročí sestrojení žárovky stříbro proof'
Silver commemorative medal 1 Oz
Designer: MgA. Tereza Eisnerová
Engraver: Tomáš Lamač, Alžběta Slámová, DiS.
Minted by: Prague Mint

diameter: 37 mm
weight: 31,1 g
purity: 999/1000 Ag
edge plain, numbered
limited mintage quality proof: 282 pcs
limited mintage quality antique: 98 pcs
issue day: October 2014

Item ID Price
CRM1681 1 790,00 Kč
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CRM1680 1 790,00 Kč
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Ujistěte se, jak rychle je toto zboží dostupné ...

Product availability: Centrála - dostupnost na prodejnách ?
ID: CRM1681 ... the construction of the bulb silver proof - same day
ID: CRM1680 ... construction of the bulb silver patina - same day

Credit for loyalty program ZLATÉ MINCE
ID: CRM1681 Your purchase gives +54,00 ZM
ID: CRM1680 Your purchase gives +54,00 ZM


Goods are sorted into categories:
- Prague Mint > Kalendárium 2014 stříbro

(translated thanks google translation service...)

Thomas Alva Edison (11. 2. 1847 - 18. 10. 1931) - American inventor and innovator. His name is listed under hundreds of patents, which often significantly accelerate technical progress. In 1789 he built the first light bulb with carbon fiber, which after improvements became a model for modern mass-produced lamps.

Thomas Alva Edison was born in Milan, Ohio. In childhood was considered too clever and had a problem with the teaching, so that his mother had done at school and his education took care of itself. Edison was full of entrepreneurial spirit, organizational skills and extraordinary diligence. This was joined by curiosity about the natural sciences, which led him to the first attempts at a young age.

In 1886, built a research center in the Villa Glenmont in West Orange, which is still maintained as a heritage site (Edison National Historical Site). At that time he was two years a widower. He married again with Mina, daughter of a wealthy inventor and marketer of agricultural machinery Lewis Miller. Of the two marriages came six children.

Edison employed many significant inventors, among them the famous Nikola Tesla. Now with him but got into a dispute about the use of alternating current. Edison did not recognize what options brings this kind of power and steadfastly advocated DC. Tesla's solution proved to be better for the transmission of electricity over long distances. This loss does not reduce Edison's importance as a world enriched by a number of inventions and technical improvements. Patents left behind more than a thousand.

In 1877, for example, patented the phonograph, which was the forerunner of the gramophone, later improved version then serially manufactured.

Among his most famous inventions include the electric bulb: the first is lit for a short time in the spring of 1879. Through constant experiments with carbon fiber was able to increase the lifespan of up to industrial use. In 1911 he visited Brno to look at the local theater lighting (today Mahenova), which implemented the engineer Emil Kolben. In his entourage then came to Prague. The American genius was known emphasis on quality, from which it was not going to compromise, even if it would bring financial gain.

Edison's inventions hit into all industries, invented and improved even in the military, but there most of his ideas remained unused.


This minting was designed and engraved by czech artists:

Alžběta Slámová

Tereza Eisnerová

Tomáš Lamač


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