Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.
Why Can You Hear the Ocean When Holding a Seashell to Your Ear?
Can a sound wave kill you?
Can two cans and a string really be used to talk over a distance?
Why Do Bubbles Pop?
It's Elementary: The Periodic Table Quiz
10 Things You Should Never Mix With Alcohol
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
Can you explain the diameter measurements used in bullets, wire and nails?
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
We've Got Your Numbers Quiz
HowStuffWorks: Illustrated: Scutoids! Just Like Spheres and Cubes, But Not
11 Basic Math Symbols and How to Use Them
5 Hugely Fun Facts About Mass (Not Weight)
Antarctica's Spooky Cosmic Rays Might Shatter Physics As We Know It
Could Newly Measured W Boson Break the Standard Model?
Could an 'X17 Particle' Hint at a Fifth Force in the Universe?
Where do they get the particles for accelerators?
5 Baffling Subatomic Particles
Why Are School Buses Yellow?
Why Spinning Blades Look Weird on TV
HowStuffWorks: How To Draw An Impossible Shape
Learn More / Page 13
Researchers have come up with the most precise determination of Planck's constant ever, making it possible to reframe the idea of what a kilogram even is.
The seriously ambitious experiment aims to understand the mysterious neutrino and maybe even figure out why matter won out over antimatter during the Big Bang.
A reinterpretation of an ancient Babylonian tablet shows that trigonometry might be 1,000 years older than thought. But there's some disagreement.
Scientists have figured out why some objects stick more to each other. And it's a very cool trick.
By Alia Hoyt
They say gunshot residue is not a good way to ID a suspect.
Mary, Queen of Scots was in the news again when amateur cryptologists found the key to decoding some letters that had remained a mystery for 500 years. How did they manage to break the code?
By Dave Roos
A new geometric shape called the "einstein" shape has been discovered and when you tile it, no repeating pattern emerges.
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.
Metallurgy involves studying how metals behave and using that understanding to manipulate and shape them into various forms.
It's called fusion ignition and it's being hailed as a historic development in nuclear fusion that could pave the way for clean energy. We talked to a nuclear physicist who explained it all.
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.
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?