What Is Black Tourmaline?
Black tourmaline is a particular variant of tourmaline, a crystalline borosilicate mineral. It is thought that the particular hue of black tourmaline is due to…
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Arc Length Formula (Equation) With Examples
The arc length of a circle refers to the measure of the length of a curve on the outside of a circle. The general formulas for…
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Small Intestine Function: Duodenum, Jejunum And Ileum
Though it is called the small intestine, it is somewhat ironically the longest portion of the gastrointestinal tract. As part of the digestive system, the small…
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How Many Feet Are In 1 Acre?
An acre is a unit of area that historically has been used to measure tracts of land. 1 acre of land is approximately equal to 43,560 sq….
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How Tall Was Napoleon Bonaparte?
How tall was Napoleon? Napoleon Bonaparte was between 5’4’’ and 5’5” tall. Even in the early 19th century, that was considered a short height for…
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Diphosphorus Pentoxide: Formula And Molar Mass
Diphosphorus Pentoxide is a covalent compound that has an empirical formula of P2O5 and a chemical formula of P4O10. The molar mass of diphosphorus pentoxide is the…
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Divers Just Found A Mayan Secret: The World’s Largest Underwater Cave
Despite the extensive explorations that took place throughout the 19th and the 20th century, new sites of scientific and historical importance continue to be discovered….
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Cursive Handwriting: Tips And Practice Sheets
There can be no doubt that cursive writing is not as popular as it once was. But, if you are learning cursive handwriting, we have…
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Verb Examples: Identify The Types Of Verbs
Verbs are best learned with examples as it can often be confusing to know which one to use and when. As a part of speech,…
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20 Interesting Mexico Facts
These Mexico facts will amaze you: Mexico is officially named Estados Únidos Mexicanos, translating to the United Mexican States. Mexico is the 11th most populous…
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Is NH3 Polar Or Nonpolar?
Ammonia, chemical formula NH3, is a colorless gas frequently used in the production of fertilizer, as a cleaning chemical, and in the creation of nitrogenous…
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