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Viviparus georgianus, commonly known as the banded mystery snail, is a species of large freshwater snail in the family Viviparidae, the river snails. It is native to North America, generally found from the northeastern United States to Florida and the Gulf of Mexico, and thrives in eutrophic lentic environments such as lakes, ponds and some low ...
Etymology The name "giraffe" has its earliest known origins in the Arabic word zarāfah (زرافة), ultimately from Persian ز رن اپ ا (zurnāpā), a compound of ز رن ا (zurnā, "flute, zurna") and پ ا (pā, "leg"). In early Modern English the spellings jarraf and ziraph were used, probably directly from the Arabic, and in Middle English jarraf and ziraph, gerfauntz.
Sodium chloride / ˌsoʊdiəm ˈklɔːraɪd /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic, and occurs as the mineral halite. In its edible form, it is commonly used as a condiment and food ...
Confucius. Confucius ( 孔子; pinyin: Kǒngzǐ; lit. 'Master Kong'; c. 551 – c. 479 BCE ), born Kong Qiu ( 孔丘 ), was a Chinese philosopher of the Spring and Autumn period who is traditionally considered the paragon of Chinese sages, as well as the first teacher in China to advocate for mass education. Much of the shared cultural heritage ...
Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH.It is a white solid ionic compound consisting of sodium cations Na + and hydroxide anions OH −.Sodium hydroxide is a highly corrosive base and alkali that decomposes lipids and proteins at ambient temperatures and may cause severe chemical burns.
Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
The Lockheed Martin/Boeing F-22 Raptor is an American twin-engine all-weather stealth fighter aircraft developed and produced for the United States Air Force (USAF). As a product of the USAF's Advanced Tactical Fighter (ATF) program the aircraft was designed as an air superiority fighter, but also incorporates ground attack, electronic warfare ...
