Infinity (∞) is a concept that describes something that is “not bound” (in theory), typically in math and physics where it has many real world applications.

## Fibonacci Introduced the Modern Numeral System to EuropeFact

Leonardo Fibonacci introduced the modern decimal numeral system (the Hindu–Arabic numeral system) to Europe in 1202. Before this Roman numerals were used.

## Ramanujan Had no Formal TrainingFact

Srinivasa Ramanujan had no formal mathematics training in his early years. He did his research in isolation, rediscovering old theorems and producing new ones.

## A System is a Set of PropertiesFact

A system is any “bound”, finite, set of physical and/or conceptual properties (elements) such as physical objects, rules, or space time coordinates.

## Gravitational Waves are Ripples in SpacetimeFact

Gravity is the result of the curvature of spacetime by matter. Non-symmetric acceleration of matter produces gravitational waves that ripple across the universe at light speed.

## Infinity is a NumberMyth

Infinity (∞) isn’t a number, it’s a concept. It describes something that can’t be expressed by a “finite” natural or real number.

## There are Different Types of InfinityFact

There are different types of infinity (∞) which differ by size, countability, “flavor” and more. Most types have practical real world applications.

## Nothing Can Travel Faster Than the Speed of LightFact

No “thing” (including particles) can travel faster than light speed, but some “non-things” can. In both ways “nothing travels faster than the speed of light”.

## E=mc^2 (Mass and Energy are Equivalent)Fact

Einstein’s mass-energy equivalence equation (E=mc2) shows that mass and energy are equivalent (but not “exactly the same”) properties of a physical system.

## Pi is an Irrational NumberFact

Pi (π) is an irrational number, meaning it represents a real number with a non-repeating pattern that can’t fully be expressed.