Christopher Columbus Steals the Moon
Monday, October 12, 2015
While today is federally recognized as Columbus Day, that name has become controversial in recent years, as public awareness grows that its namesake and his crew did some absolutely abominable things to the people who lived on this continent before he “d... more

Equation Works Out Kinks In Knot Math
Friday, October 09, 2015
Image credit: fdecomite via flikr | are everywhere, from laces of shoes to stitches that seal cuts. Sailors and others have known since antiquity that some knots are stronger than others, but such knowledge came largely ... more

Radiofrequency electromagnetic waves can power wireless brain implants in mice!

Wireless Neural Implants

Radiofrequency electromagnetic waves can power brain implants in mice

Femtosecond-pulse lasers have enabled the creation of free-floating, interactive holograms!

Plasma Fairies: Femtosecond Laser Holograms

Lasers have enabled the creation of free-floating, interactive holograms!

Pollia thumbnail image

Color-Tunable Elastic Fibers

By mimicking the structure of organisms like the Pollia condensata berry, researchers have invented an elastic fiber that changes color when stretched!

Water droplets on the strands of a spider's web act as tiny prisms, creating a metallic rainbow of colors.

Spiderweb Diffraction HD

The dewy strands of a spiderweb can form a natural diffraction grating


Hoag's Object

The "Eye" in the Sky

Coronal Loops

Coronal Loops

Plasma arcs from the surface of the sun, guided back down by powerful magnetic field lines.

The blasted ruins of a temple in Nagasaki, Japan.


Decades after the bombings of Hiroshima and Nagasaki, scientists debate their application to modern radiation safety standards.


India's Connection to the Stars

Documenting the astronomical beliefs of several Indian ethnic groups.


The Science Behind World Cup Passing Networks

Network theory reveals successful World Cup strategies

Inverted Wineglass Harp

Inverted Wineglass Harp

A new take on a musical physics classic


3D and Polarization at Home

Grab some 3D glasses for this home experiment


Sewing Kit Cartesian Diver

Exploring buoyancy with this quick experiment


Meteorite Markings Offer Clues to their Past
October 08, 2015
A slice of meteorite has a lot to say about where it came from, if you know how to listen!

A Time Capsule of the Universe
September 16, 2015
The DASCH initiative, "Digital Access to a Sky-Century at Harvard", seeks to scan and upload tens of thousands of photographic plates, creating a comprehensive record of what the night sky has looked like over the past hundred years.

Science and Entertainment
June 24, 2015
From the physics behind Thor's Hammer to the beautiful black hole renderings of Interstellar, science has a lot to offer the film industry and vice versa. What does it take to pull off a successful collaboration?

May 06, 2015
New satellite tracks Earth's changing climate from variations in its gravity.

Podcast Archive


Spectra: High Intensity

Ms Alignment

I hope you are having a great time doing the activities for Spectra's High Intensity, you can submit your answers here. You do not have to have completed all the activities to submit your answer. If you've only had time to do a few or only one activity you can still submit answers and be eligible to win fabulous prizes! 

Miss Alignment has broken out of jail and is on the loose hatching evil plans. Armed with a high IQ, an inferiority complex, and a secret lair, she will try yet again to control the town. Your students can help Spectra, her gang, and her new friend the Quantum Mechanic stop Miss Alignment’s focus on evil.

In celebration of the International Year of Light, this kit will have all of the equipment needed to teach students about bending light, spherical lenses, how color and energy are related, and how the sun’s light also carries heat. As the students do these activities, they will be applying all the skills they need to help our superheroes prevent Miss Alignment’s attempted town domination.

For more information about the overall program, please visit the PhysicsQuest About Page.



Create your own spectroscope with our free iPhone/Ipad app: SpectraSnapp. Now you can see the spectral lines behind the fluorescent lights, neon signs, sodium lamps, and other light sources you encounter everyday!

Comic Books

Click to Read Physics Comics

Read all of our physics comic books online, and follow the adventures of Spectra, the original laser superhero.

Science off the Sphere

Science off the Sphere

Astronaut and chemist Dr. Don Pettit did physics demos that are out of this world while he was aboard the International Space Station. Now you can enjoy videos of his fantastic micro-gravity experiments safely on the surface!

Watch the Videos

Physics Stuff

View & Order Physics Stuff

cannonball cheeseburgers

Spectra Sound

Purchase Posters, Spectra Sound, Tshirts and More in the APS Store.

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Resources for Educators

PhysicsCentral runs programs for all ages with the goal of making physics fun and interesting for everyone. From coloring books to at home experiments we have something perfect for you and your students to enjoy. 

Resources for Educators