Physical Science
Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.
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 Does Mummification Have to Do With Gene Hackman?
What do bugs have to do with forensic science?
5 Things You Didn't Know About Autopsies
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
Congruent Angles: Definition, Symbol and Key Theorems
Adjacent Angles: Types and Examples
What Is the Associative Property of Mathematics?
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 13
Finding the range of a set of numbers is an easy subtraction problem!
The list of superstar athletes accused of - and admitting to - taking performance-enhancing drugs is almost as impressive as the number of sports that they compete in. And we're not just talking about steroids.
By William Harris, Jennifer Walker-Journey & Austin Henderson
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
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You use the number zero all the time, but it may surprise you to learn that it sometimes isn't a number at all. It may surprise you even more to learn that it was all but invented. See what else surprises you about zero in this article.
By Josh Clark
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
You've heard of Google, but what about a Googol? If not, then this tutorial is for you.
By Mark Mancini
Mathematician Andrew Booker has found the three cubes that add up to the number 33, a long-unsolved math problem.
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Borax, a popular addition to laundry detergents and slime recipes, is a natural ingredient that has been getting flack for possibly being harmful to children. But is this true?
By Alia Hoyt
It's an odorless gas that's present in a variety of home products, cosmetics, car exhaust and even humans. But is it bad for us?
Two mathematicians have solved a decades-old math problem by harnessing the power of a virtual supercomputer.
And it'll take XIV minutes flat.
By Alia Hoyt & Desiree Bowie
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How do you calculate absurdly high numbers without writing them out in numerals? You use scientific notation. We'll give you examples and show you how.
By Mark Mancini & Yara Simón
You might wonder what phosphates do, but they are so intrinsic to our daily lives that the question really is: What don't phosphates do?
You may remember from math class that a prime number is a number that can only be divided by 1 and itself. But why are they important anyway?
Rational numbers can be expressed as the ratio of two integers, while irrational numbers, such as square roots of non-square numbers, cannot.
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In 1999, Hisashi Ouchi, a Japanese nuclear fuel plant worker was exposed to critical levels of radiation. He suffered the worst radiation burns in history. He lived for 83 agonizing days afterward as his body all but disintegrated.
There are two different scales of measuring temperature on Earth, but they merge at just one very cold number.
Adrenochrome has been linked to schizophrenia and the LSD counterculture movement. Now QAnon conspiracy theorists say it's part of a child sex-trafficking cult. So what's the truth behind this chemical compound?