Stamp: Rainbow (Hong Kong(Weather Phenomena) Mi:HK 1877,Sn:HK 1631,Yt:HK 1712,Sg:HK 1856,WAD:HK021.2014 📮

Stamp catalog : Stamp › Rainbow

Rainbow

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Country:
Hong Kong
Series:
Weather Phenomena
Catalog codes:
Michel HK 1877
Stamp Number HK 1631
Yvert et Tellier HK 1712
Stanley Gibbons HK 1856
WADP Numbering System - WNS HK021.2014
Themes:
Meteorology | Rainbows | Weather
Issued on:
2014-03-27
Size:
35 x 35 mm
Colors:
Multicolor
Format:
Stamp
Emission:
Commemorative
Perforation:
Syncopated 14
Printing:
Offset lithography
Face value:
1.70 HK$ - Hong Kong dollar
Score:
77% Accuracy: Medium
Description:
Perforation: "Shz. 13¾" for Mi, "13¾ Syncopated" for Sn
A rainbow is an optical phenomenon. Sunlight is composed of light of different wavelengths. When there are water droplets in the atmosphere, sunlight gets refracted and reflected in them and a rainbow is formed. The stamp illustrates a double rainbow in the sky over the urban area of Hong Kong. When sunlight passes through water droplets and gets reflected twice, two rainbows are developed. The primary rainbow, formed by one reflection, is brighter while the secondary rainbow, produced by two reflections, is fainter.

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