The USA issued a set of 50 stamps on State Flags of States of the USA on 23 Feb 1976. We are listing them in Alphabetical order of States name. All stamps are 13 cents denomination. This stamp is 31st in the series
New Mexico State Flag – New Mexico adopted state Flag in 1925. The main features of the Flag are
The colours on Flag are Red & Yellow of Old Spain.
Reflect American Pueblo and Mexico Hispano roots.
The Centre design is ancient Zia Symbol. Zia Indians regard sun as sacred.
Sun in Centre with four rays pointing in each of four directions.
Four is a sacred number for Zia – Four Cardinal directions on a compass, four seasons of the year, four periods of the day , Four seasons of life (Childhood, youth, middle age & old age).
Stamps on Ocean Thermal Energy Conversion – Stamps of Nauru 1982
Ocean Thermal Energy Conversion (OTEC) uses the temperature difference between the cooler deep and warmer shallow or surface seawater to run a heat engine and produce useful work, usually in form of electricity. OTEC can operate with a very high capacity factor.
Among Ocean energy sources, OTEC is one of the continuously available renewable energy sources. Up to 88,000 TWh/yr of Power could be generated from OTEC without affecting ocean’s thermal structure. Currently, World’s only operating OTEC plant is in Japan overseen by Saga University.
In 2002, India also tested a floating 1 MW OTEC plant near Tamil Nadu.
In 1970, The Tokyo Electric Power Company successfully built and deployed a 100Kw closed-cycle OTEC plant on the Island of Nauru. The Plant became operational on 14 Oct 1981, producing 120 KW of electricity, 90 KW was used to power the plant and remaining electricity were used to power a school and other places. This set a world record for power output from an OTEC system where power was sent to the real power grid.
Nauru issued a set of Four stamps (two se-tenant pairs ) on the OTEC plant on 10 June 1982. A Sheetlet with two 40c stamps is listed. It features the OTEC plant on the stamps and on left and right side labels The finished 100KW electricity generating plant is featured. The bottom label shows the pipelines of the plant during low tide.