Math Concepts
Math is often called the universal language because no matter where you're from, a better understanding of math means a better understanding of the world around you. Learn about math concepts such as addition, subtraction, fractions, ratios and more.
Brown Noise vs. White Noise: Which Is Best for Quality Sleep?
Can a sound wave kill you?
Can two cans and a string really be used to talk over a distance?
Understanding the Empirical Formula in Chemistry
The Most Expensive Metal in the World Isn't Gold or Platinum
Delta-8 vs. Delta-9: Comparing Types of THC
How Electricity Works
How Faraday Cages Work
How Gasoline Works
What do bugs have to do with forensic science?
5 Things You Didn't Know About Autopsies
Do a Person’s Fingerprints Change After Death?
How Alchemy Paved the Way for Chemistry
How did Nikola Tesla change the way we use energy?
Time May Not Exist, Say Some Physicists and Philosophers
Why Does Ice Stick to Your Fingers?
What if I forgot to remove a piercing before an MRI?
A Kid-friendly Introduction to Magnets and Magnetism
5 Hugely Fun Facts About Mass (Not Weight)
Antarctica's Spooky Cosmic Rays Might Shatter Physics As We Know It
Entropy: The Invisible Force That Brings Disorder to the Universe
The Demon Core: A Tale of Atomic Ambition and Tragic Fate
Half-Life Formula: Components and Applications
Could an 'X17 Particle' Hint at a Fifth Force in the Universe?
Why Are School Buses Yellow?
HowStuffWorks: How To Draw An Impossible Shape
What Are the Colors in the Visible Spectrum?
Learn More / Page 4
A world without math is unimaginable. It's a part of who we are. It's the analytical juice of our left brain. In the words of physicist Richard Feynman, even a fool can use it. So why do so many of us turn our backs on numbers?
By Robert Lamb
For many of us, a number is just a number, a bit of information that tells you, say, what time it is. But mathematicians look at that same number and divine relationships that underlie nature itself. Ready to enter the trippy world of number theory?
By Robert Lamb
The Fibonacci sequence has been a numerical sequence for millennia. But what does it have to do with sunflower seeds or rabbits?
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An imaginary number is a value that's the square root of a negative number. It can't exist on a one-dimensional number line. We'll explain.
With a little patience, you can master this trick of converting binary code to decimals — and have fun doing it!
By Mark Mancini
If you're already familiar with subtracting fractions, learning how to add fractions will be a piece of cake for you. And if you haven't learned how to subtract fractions yet, don't worry — we've got you covered!
You can find the distance between two points by using the distance formula. It's an application of the Pythagorean theorem. Remember that from high school algebra?
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The very idea of trying to subtract one fraction from another may send you into convulsions of fear, but don't worry — we'll show you how.
Want to know the area of your pizza or the kitchen you're eating it in? Come on, and we'll show you how to figure it out with an area formula.
We take the mystery out of reporting the percent error correctly and show you how to use it in real life.
By Mark Mancini
The Collatz conjecture can be worked on by 9-year-old math whizzes, but it's flummoxed some of the greatest minds of the past century. Will it ever be solved?
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A new geometric shape called the "einstein" shape has been discovered and when you tile it, no repeating pattern emerges.
Math is a language of symbols and equations and knowing the basic signposts is the first step in solving mathematical problems.
It's seeped into movies and popular culture, but what does "six degrees of separation" really mean? Are we really that connected to each other?
By Dave Roos
There are two different scales of measuring temperature on Earth, but they merge at just one very cold number.
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How large does a random group of people have to be for a 50 percent chance to exist that at least two of the people will share a birthday?