Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.
Can you really shatter a glass with a high note?
Why Compressed Air Canisters Shouldn’t Be Shaken
Light Pollution Is Stealing the Night
Why DNA Evidence Can Be Unreliable
Who was the first scientist?
The Chinese Are a Magnet Superpower
Concept of Zero Is Centuries Older Than Assumed, Analysis Suggests
Scientists Have Devised a Revolutionary Way to Redefine the Kilogram
ITER Nuclear Fusion Plant Is Halfway Finished
Why Do We Get So Much Pleasure From Symmetry?
The International Thermonuclear Experimental Reactor plant aims to demonstrate that nuclear fusion could be a viable source of power in the future.
By Patrick J. Kiger Dec 19, 2017
It's a force of habit to shake spray canisters, but when it comes to canned air, that inclination could cause frostbite.
By Laurie L. Dove Dec 6, 2017
Nights on Earth are getting artificially brighter, bringing unintended consequences.
By Patrick J. Kiger Dec 5, 2017
Why do we love looking at a perfectly stacked display of soup cans or six flower petals around a stamen? Our brains seem wired for it -- but why?
By Dave Roos Nov 6, 2017
A new analysis of the ancient Indian Bakhshali manuscript suggests the numerical symbol zero, as we use it today, may be centuries older than previously believed.
By Patrick J. Kiger Sep 26, 2017
Scientists have figured out why some objects stick more to each other. And it's a very cool trick.
By Alia Hoyt Sep 20, 2017
If you're one of those people who chooses invisibility as your desired superpower, it could mean you have a dark side.
By Alia Hoyt Sep 6, 2017
A reinterpretation of an ancient Babylonian tablet shows that trigonometry might be 1,000 years older than thought. But there's some disagreement.
By Jesslyn Shields Sep 5, 2017
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.
By Ian O'Neill Aug 25, 2017
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.
By Patrick J. Kiger Jul 21, 2017
Stanford University researchers for have for the first time observed the formation of a super-dense frozen water crystals called ice VII, which don't naturally exist on Earth.
By Patrick J. Kiger Jul 19, 2017
Two physicists have worked out a mathematical model for time travel. Now we just need some heretofore unseen exotic matter to get traveling.
By Ian O'Neill May 10, 2017
New data shows extremely high radiation levels inside one of the reactor containment vessels. Are post-tsunami radiation levels spiking? Not so fast …
By Patrick J. Kiger Feb 10, 2017
DNA found at a crime scene doesn't automatically mean the person matching it is guilty, say researchers of new forensics guide.
By Dave Roos Feb 8, 2017
Light-reflective glasses promise to foil CCTV cameras. Here's how.
By Michelle Adelman Dec 26, 2016
Science is still working out exactly what makes frozen water so slippery, but there are a few intriguing theories.
By Laurie L. Dove Nov 30, 2016
The race is on to build some seriously strong magnetic fields that are capable of doing amazing thing, like literally mapping neurons.
By Kate Kershner Nov 18, 2016
Electronics giant Samsung reportedly has patented 3-D TV tech that projects a hologram so that viewers don't have to wear special glasses.
By Patrick J. Kiger Nov 17, 2016
Helicopters, ceiling fans, even tricked-out car tire rims: Sometimes they can even look like they're going backward, or bending.
By Laurie L. Dove Nov 9, 2016
A wall of Lego-like bricks creates the illusion of hyper-vivid, three-dimensional audio, altering sound waves much like a hologram does visible light.
By Patrick J. Kiger Oct 21, 2016
It's a young lady! It's an old woman! It's a blue dress! No, it's gold! Why are we fooled by optical illusions and what do they tell us about how the brain works?
By Meisa Salaita
Whereas the majority of sighted people see a world with just a million colors, or fewer if you're color-blind.
By Kate Kershner Jul 26, 2016
There's some serious science behind the sparkle, with different metals, compounds and other elements creating the fun firework.
By Christopher Hassiotis Jul 4, 2016
Dangerous and unpredictable, rogue waves in the ocean seem to more closely resemble light waves than water waves.
By Jesslyn Shields Jun 23, 2016
In 1957, Hugh Everett first wrote about the multiverse — different realms where every choice spawns a separate universe in which another version of ourselves does something different. It sounds crazy, but here are some reasons it might be true.
By Patrick J. Kiger
The Gross, the Guest Suite, and the Grumpy: Our Best Stories You Might Have Missed This Week
Biomedical Big Brother in Your Belly?
DNA Database Helps Nab Rhinoceros Poachers