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Gemstones are precious or semi-precious stones that are cut, polished and set to create beautiful pieces of jewelry. Most are made from minerals and rock and are mined from the Earth. However pearl and coral are often classed as gemstone as well. Gemstones are highly prized for their amazing colors and surface textures. Some of the most well known gemstones are sapphire, diamond, rubies, emerald and amethyst.
The liver is a major organ that is located in the upper right quadrant of the abdominal cavity. It is dark reddish-brown and has four lobes. The liver is a triangular shaped organ that weights approximately 1.44–1.66 kg (3.2–3.7 lb) in an adult human. The liver is connected to the hepatic artery and the portal vein. It is the second largest organ of the human body and has a number of functions within the body.
A moon is classified as a natural satellite that orbits a planet, dwarf planet or minor planet. Over 160 moons have been discovered orbiting the planets in the Solar System and many more have been found orbiting smaller planets. Many people believe that Earth’s Moon is the largest in the solar system, but it is actually the 5th largest moon. If you want to know which moon is the largest, keep reading to find out.
Independence Hall, originally called the Pennsylvania State House, is one of the most important buildings in the history of the United States. It is also known as the birthplace of the United States because it was where the Declaration of Independence was adopted and the Constitution was drafted and signed. It is located in Philadelphia, Pennsylvania and is a part of the Independence National Historical Park, which is operated by the National Park Service. Due to its important place in US history the site was made a cultural UNESCO World Heritage Site in 1979. If you want to know who built this important structure, keep reading to find out.
Chickenpox is a common highly contagious illness that is best known for causing a distinctive itchy skin rash. However, chickenpox commonly causes other symptoms such as nausea, muscle pain, fever, headache, sore throat, ear pain, lack of appetite and fatigue. There are rarely serious complications from this illness, but adult males and those with suppressed immune systems are most at risk of complications.
Citric acid is a natural acid that exists in many fruits and vegetables, but is well known for high concentrations in some citrus fruits such as lemons and limes. Citric acid can also be produced by feeding sugar to a certain type of mold called Aspergillus niger. This technique was discovered in 1917 and is still used today to produce citric acid. This acid has many important applications and more than a million tonnes are made each year.
Bruce Lee was a celebrity actor best known for his skill in martial arts. He began working in Hong Kong cinema at a very young age, but didn’t begin learning martial arts until 12 when he was beaten up by a street gang. He moved to the United States when he was 18 where he entered college and opened a martial arts school. It was at a martial arts event where he met a Hollywood hair stylist who introduced him to a television producer. As they say, the rest is history. Up until his sudden death in 1973 he was one of the best known martial arts actors in the world and is credited with popularizing martial arts films in the Western World. The following is a list of movies that Bruce Lee acted in during his career.
Hong Kong is a city-state that is located on the south coast of China. It is surrounded by the Pearl River Delta and the South China Sea. Hong Kong has a population of approximately 7,061,200 people and has a total land area of 426 sq mi (1,104 km2). It is one of the two special administrative regions of the People’s Republic of China, and it was previously a crown colony of the United Kingdom. Hong Kong means “fragrant harbour” and is a good approximation of the Cantonese name for the city.
Sewage, also written sewerage, is the word used to describe any substance that is disposed of into the sewage system. This includes any substance that goes down the drain or is flushed down a toilet. The largest percentage of sewage is water (99%). There are different classifications of sewage domestic, commercial, industrial, agricultural and surface run off. All these types of sewage are channeled and collected in a sewage treatment facility where it is either treated or disposed of.
The Titanic is the most infamous cruise ship of all time. The Titanic left port in England on a transatlantic voyage to New York City, United States. Along the way the ship struck an iceberg and sank killing a total of 1,522 people, leaving just 705 survivors. If you ever wondered who captained this ill-fated voyage, read this article to find out.