How To Calculate The Volume Of A Right Cone
Mathematics / Geometry
Cones are used every day for a variety of purposes. Perhaps the most useful application of the cone shape is as a funnel. For finding the volume, a cone is best viewed as a stack of circles, each one continue reading this fact

Who Invented Zero?
Mathematics / History
Many concepts that we all take for granted sounded strange and foreign when first introduced. Take the number zero for instance. Any firstgrader can recognize and use zeros. They sound so logical and continue reading this fact

Prime Numbers
Mathematics / Number Theory
A prime number is a number that is divisible only by one and by itself. Factors are numbers that can be divided into a number with no remainder. The factors of 18 are the numbers 1, 2, 3, 6, 9, and 18 continue reading this fact
