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Science & Technology

Calculating Years Between BC and AD

Calculating Years Between BC and AD

The Christian method of dividing time is based on the estimated birth date of Jesus of Nazareth, using B.C. and A.D designations. The paths of math and religion don’t often cross, but if you need to calculate years across B.C.…

Understanding Input and Output in Mathematics

Understanding Input and Output in Mathematics

In mathematics, input and output are terms that relate to functions. Both the input and output of a function are variables, which means that they change. You can choose the input variables yourself, but the output variables are always determined…

Threatened Wildlife of the African Savanna

Threatened Wildlife of the African Savanna

The African savanna is a huge expanse of grassland, spread across 27 different countries on the African continent, including Kenya and Tanzania. Home to many species of birds and mammals, the savanna is also used by humans for cattle grazing…

Converting Grams to Liters Using Density

Converting Grams to Liters Using Density

Densities tell you how much mass occupies a certain amount of space, so if you need to find the amount of liters something will take up based on its mass, all you need is the density of the material in…

Understanding Delta in Mathematics

Understanding Delta in Mathematics

As mathematics developed over the course of history, mathematicians needed more symbols to represent the numbers, functions, sets, and equations that were coming to light. Because most scholars had some understanding of Greek, the letters of the ancient Greek alphabet…

Solving for Both X and Y

Solving for Both X and Y

Solving for two variables (normally denoted as “x” and “y”) requires two sets of equations. Assuming you have two equations, the best way for solving for both variables is to use the substitution method, which involves solving for one variable…

Flora and Fauna of Forests Exploring the Ecosystem

Flora and Fauna of Forests Exploring the Ecosystem

Knowing which plants and animals commonly inhabit forests could make woodland walks more interesting and satisfying and improve your understanding of the world. The variety of forest flora and fauna found in tree-dense areas depends very much on the type…

Exploring the Life Cycle of a Peacock

Exploring the Life Cycle of a Peacock

Possessing a span of feathers that are intended to impress, peacocks are one of the most ornamental of birds. There are several sub-species of this member of the pheasant family, each featuring different color combinations; some are all white. The…

Identifying Raw Gold

Identifying Raw Gold

Fool’s gold can be mistaken for placer gold – gold found as rounded or flat nuggets in dry and wet stream beds, and rivers or creeks – because they both look golden. But real gold stays bright even when out…