Unit Of Luminous Intensity (candela)
Mathematics / History
Originally, each country had its own, and rather poorly reproducible, unit of luminous intensity; it was necessary to wait until 1909 to see a beginning of unification on the international level, when continue reading this fact
|
Picture This
Mathematics / Geometry
What 3 dimensional shape will pass through a rectangle, triangle and circle each time filling the whole space? The answer may surprise you in it's simplicity. Before I tell you what it is, see if you 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 first-grader can recognize and use zeros. They sound so logical and continue reading this fact
|
