Zheng He

or Cheng Ho orig. Ma Sanbao

(born circa 1371, Kunyang, Yunnan province, China—died April 1433, Calicut, India) Eunuch admiral and diplomat who helped extend Chinese maritime and commercial influence throughout the region bordering on the Indian Ocean.The Yongle emperor named Zheng commander in chief of missions to the “Western Oceans.” He first set sail in 1405 and on this mission visited Champa (southern Vietnam), Siam (Thailand), Malacca, and Java, traveled through the Indian Ocean as far as Sri Lanka, and returned to China in 1407. Subsequent voyages took him to Arabia, the eastern coast of Africa, Southeast Asia, and India. Chinese emigration to, and influence in, Southeast Asia increased in the wake of these missions, resulting in tributary trade to China that lasted into the 19th century.

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or Huang Ho English Yellow River

River, northern, central, and eastern China. The second longest river in China and one of the world's longest, it flows 3,395 mi (5,464 km) from the Plateau of Tibet generally east to the Yellow Sea (Huang Hai). In its lower reaches it has often overflowed its banks, flooding vast areas of rich farmland. Its outlet has shifted over the years to enter the Yellow Sea at points as far apart as 500 mi (800 km). Irrigation and flood-control works have been maintained for centuries, and dams, begun in the mid-1950s, exploit the river's hydroelectric potential.

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Method of dating that depends on the production of helium during the decay of radioactive isotopes of uranium and thorium. Because of this decay, the helium content of any mineral or rock capable of retaining helium will increase during the lifetime of that mineral or rock, and the ratio of helium to its radioactive progenitors then becomes a measure of geologic time. Fossils may also be dated by helium dating. The relatively large amount of helium produced in rocks may make it possible to extend helium dating to rocks and minerals as young as a few tens of thousands of years old.

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Chemical element, chemical symbol He, atomic number 2. A noble gas, it is colourless, odourless, tasteless, completely unreactive, and nontoxic. First found by spectroscopy of the Sun's atmosphere in 1868, it is the second most abundant and second-lightest element in the universe (after hydrogen). Helium makes up a tiny proportion of the atmosphere but as much as 7percnt of natural gas. It is the product of radioactive decay (see radioactivity) and is used in helium dating. It is used as an inert gas in welding, rocket propulsion, balloon flight, hyperbaric chambers, deep-sea diving (see nitrogen narcosis), gas chromatography, luminous signs, and cryogenics. Liquid helium, which exists only below −452 °F (−268.9 °C, about 4° C above absolute zero), is a “quantum fluid” (see fluid mechanics; quantum mechanics), with unique properties, including superfluidity, superconductivity, and near-zero viscosity.

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Heeia is a census-designated place comprising several neighborhoods located in the City & County of Honolulu and the Koolaupoko District on the Island of Oahu north of Kāneohe. In Hawaiian the words hee ia mean washed away, alluding to a victory achieved by the populace against others from leeward Oahu, aided by a tsunami that washed the combatants off the shore.

Heeia includes Haikū Valley and Heeia Kea. The population was 4,944 at the 2000 census. The area is almost entirely one of homes and apartments. Parts of Heeia lie along Kāneohe Bay, but public access is non-existent owing to private ownership of the property behind the shore.

Notable in the Heeia area are:

• Haikū Valley, a former United States Coast Guard radio transmitter site with the Stairway to Heaven hiking trail.
• Heeia Fishpond, the largest remaining fishpond on Oahu.

Heeia Kea is a community and small, undeveloped valley separated from Heeia by Heeia Marsh and Kealohi Point. Heeia Kea Small Boat Harbor, the only public pier and boat ramp on Kāneohe Bay, is found here. Several fishponds have been restored in recent years. Although fishponds were developed on most of the islands, the largest concentrations were found in Keehi Lagoon, Pearl Harbor, and Kāneohe Bay on Oahu.

The U.S. postal code for Heeia and Heeia Kea is the same as for Kāneohe: 96744.

Geography

Heeia is located at (21.426200, -157.812248). Heeia is essentially part of Kāneohe and the nearest town to the northwest is Āhuimanu, reached by either Kahekili Highway (State Rte. 83) or Kamehameha Highway (State Rte. 830) along the coast.

According to the United States Census Bureau, the CDP has a total area of 2.3 square miles (5.9 km²), of which, 2.0 square miles (5.3 km²) of it is land and 0.2 square miles (0.6 km²) of it is water. The total area is 10.92% water.

Demographics

As of the census of 2000, there were 4,944 people, 1,557 households, and 1,367 families residing in the CDP. The population density was 2,419.4 people per square mile (935.7/km²). There were 1,604 housing units at an average density of 784.9/sq mi (303.6/km²). The racial makeup of the CDP was 25.67% White, 0.44% Black or African American, 0.14% Native American, 40.84% Asian, 8.52% Pacific Islander, 0.77% from other races, and 23.62% from two or more races. 4.83% of the population were Hispanic or Latino of any race.

There were 1,557 households out of which 28.0% had children under the age of 18 living with them, 73.2% were married couples living together, 9.9% had a female householder with no husband present, and 12.2% were non-families. 9.2% of all households were made up of individuals and 3.8% had someone living alone who was 65 years of age or older. The average household size was 3.17 and the average family size was 3.32.

In the CDP the population was spread out with 21.4% under the age of 18, 6.9% from 18 to 24, 24.4% from 25 to 44, 31.5% from 45 to 64, and 15.8% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 98.9 males. For every 100 females age 18 and over, there were 96.4 males.

The median income for a household in the CDP was $87,528, and the median income for a family was $90,435. Males had a median income of $55,179 versus $34,983 for females. The per capita income for the CDP was $33,990. 0.5% of the population and 0.0% of families were below the poverty line. Out of the total population, 0.0% of those under the age of 18 and 0.8% of those 65 and older were living below the poverty line.

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