Science

Conjugate Surds The sum and difference of two simple quadratic surds are said to be conjugate surds to each other. Conjugate surds are also known…

Simplifying Fractions Fractions may have numerators and denominators that are composite numbers (numbers that have more factors than 1 and itself). Simplifying (or reducing) fractions…

Aikinite is a sulfide mineral of lead, copper, and bismuth with formula PbCuBiS3. It forms black to grey or reddish brown acicular orthorhombic crystals with…

Ahlfeldite, formula ((Ni,Co)[SeO3]·2H2O) is a mineral of secondary origin. It’s named after Friedrich Ahlfeld (1892–1982), a German-Bolivian mining engineer and geologist. Its type locality is…

Aheylite is a rare phosphate mineral with formula (Fe2+Zn)Al6[(OH)4|(PO4)2]2·4(H2O). It was named after Allen V. Heyl, an economic geologist associated with the U.S. Geological Survey.…

Definitions of surds: A root of a positive real quantity is called a surd if its value cannot be exactly determined. It is a number…

Aguilarite is an uncommon sulfosalt mineral with formula Ag4SeS. It was described in 1891 and was named after Ponciano Aguilar, the former superintendent of the…

Least Common Multiple The Least Common Multiple (LCM) is the smallest number that two or more numbers will divide into evenly. The LCM of two…

Definitions of surds: A root of a positive real quantity is called a surd if its value cannot be exactly determined. It is a number that…

Definitions of surds: A root of a positive real quantity is called a surd if its value cannot be exactly determined. It is a number…

Agrinierite, formula- [K2(Ca,Sr)(UO2)3O3(OH)2].5H2O is a mineral often found in the oxidation zone of uranium deposits. It was named for the engineer of the Mineralogy Laboratory…

Least Common Denominator The Least Common Denominator (LCD) is the Least Common Multiple of two or more denominators. In mathematics, least common denominator is the…