Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising Magazine Sponsor RF Cafe RF Electronics Symbols for Visio RF Electronics Symbols for Office Word RF Electronics Stencils for Visio Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Anritsu Alliance Test Equipment Amplifier Solutions Anatech Electronics Axiom Test Equipment Berkeley Nucleonics Centric RF Conduct RF Copper Mountain Technologies Empower RF everything RF Exodus Advanced Communications Innovative Power Products ISOTEC KR Filters PCB Directory Rigol San Francisco Circuits Reactel RF Connector Technology TotalTemp Technologies Triad RF Systems Windfreak Technologies Withwave LadyBug Technologies Wireless Telecom Group Sponsorship Rates RF Cafe Software Resources Vintage Magazines RF Cafe Software RF Cafe Sponsor Links Temwell Werbel Microwave Thank you for visiting RF Cafe!
KR Electronics (RF Filters) - RF Cafe

British 2-Pound Marconi Commemorative Coin
- RF Cafe Cool Pic -

Cool Pic Archive Pages

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |

These images have been chosen for their uniqueness. Subject matter ranges from historic events, to really cool phenomena in science and engineering, to relevant place, to ingenious contraptions, to interesting products (which now has its own dedicated Featured Product category).

A decision was made by the United Kingdom in 1994 to produce 2-pound (£2) coins for general circulation. Public input was sought regarding a theme for the design of the reverse face (back) of the coins; the obverse (front) would feature the standard bust of the Queen. Four years later, the British Royal Mint issued its first coin. The bi-color coins all have a nickel-brass (dark) inner component and a cupro-nickel (light) outer component. Designs would tell the story, through symbolic devices, of technological development from the Iron Age to the Industrial Revolution and from the Computer Age to the Internet. An edge inscription was included to identify the object or event being commemorated.

Designed by Robert Evans, the third coin in the yearly series pays tribute to the contributions of Guglielmo Marconi. Per the British Royal Mint's website: "100th Anniversary of Marconi's 1st Wireless Transmission across the Atlantic. Radio waves decorating centre and outer border while a spark of electricity linking the zeros of the date represents the generation of the signal designed by Robert Evans." The chosen design contains a rendition of the familiar Smith Chart in the center (admittance circles drawn as implemented), with what can be interpreted as skywaves propagating around the Earth (DXers will appreciate that). Four radial lines emanate from the left edge of the Smith Chart, each containing two sets of three small circles when beginning with the bottom line and progressing counter-clockwise, move farther away from the origin, probably representing information packets moving through space. Why four lines and groups of three dots? Darned if I know. The innermost admittance circle has the year 2001 inscribed, with a portion of an electrical 'zap' between '20' and '01.' Hash marks on the inner rim of the circle at first look like compass rose increments, but they are actually irregular and most likely are suppose to look like frequency components on a spectrum analyzer. An inscription along the edge reads, "Marconi 1904   Wireless Bridges the Atlantic."

Some of the other designs include commemorations to Isaac Newton, the discovery of DNA by Watson and Crick, the steam locomotive engine by Richard Trevithick, structural engineer Isambard Kingdom Brunel (what a name!), Johannes Gutenberg's moveable type printing press, and nursing stalwart Florence Nightingale.

BTW, I love the British Royal Mint's listing in its credentials, "With more than 1,000 years of experience, the Royal Mint is planning for organic growth and sustainable profits." How many companies can claim a millennium of existence?

Thanks to RF Cafe visitor Paul P. for alerting me to the coin and for generously mailing one to me all the way from the U.K!

 

British 2-Pound Marconi Commemorative Coin - RF Cafe

British 2-Pound Marconi Commemorative Coin

 

 

Posted December 16, 2012

TotalTemp Technologies (Thermal Platforms) - RF Cafe
everythingRF RF & Microwave Parts Database - RF Cafe
Innovative Power Products Passive RF Products - RF Cafe

RF Electronics Shapes, Stencils for Office, Visio by RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free

 

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:

AirplanesAndRockets.com