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Physics Toy Store 02



Dipole Magnets with Iron Filings

Get one here:

From Amazon: BUY NOW Dipole Magnet Viewer



Acrylic Rattleback

Acrylic Rattleback: prefers to spin counter clockwise. If spun clockwise, a complicated combination of friction, precession, and instability induced vibrations transforms the rotational energy into into rattling (energy of oscillations) and then into rotational energy in the opposite direction! This behavior is related to the asymmetric shape of the bottom of this kind of rattleback, it's somewhat propeller shaped with an "S" curve along the bottom ridge. ➡️ Follow the link in my @physicsfun profile for info on where to get a rattleback and learn more about its physics. #rattleback #celt #physics #physicstoy #rotation #instability #kineticenergy #torque #friction #angularmomentum #precession #science #scienceisawesome #kineticart

A video posted by physicsfun (@physicsfun) on


These acrylic versions work great and are inexpensive:


From Educational Innovations: BUY NOW Rattlebacks


From Amazon: BUY NOW Rattlebacks

For further details on the curious physics and behavior this amazing physics toy, please see my short blog post on the rattleback.



Tree Tops

By Areaware-- get some here:

From ebay: BUY NOW Tree Tops


From Amazon: BUY NOW Tree Tops



Time's Up Inverted Timer

Get one here:

From Amazon: BUY NOW Time's Up Liquid Timer
From eBay: BUY NOW Time's Up Liquid Timer



Seven Sphere Newton's Cradle

This version of the Newton's cradle has a solid and heavy metal frame and has seven spheres instead of the regular configuration of five. Well made!

From Amazon: BUY NOW Newton's Cradle



CYMK Coasters

These coasters also available for The Mona Lisa, Starry Night, and The Scream:

From Amazon: BUY NOW CMYK Coasters

From eBay: BUY NOW CMYK coasters

The CMYK model and colorspace on Wikipedia- also Vermeer's famous 1665 painting.


Balance Dragonfly

Inexpensive, hand-crafted, physics toys!

From Amazon: BUY NOW Balance Dragonfly Set

From eBay: BUY NOW Balance Dragonfly Set


Spinpal: Gyroscopic Fidget
Get one here:

From kickstarter: Buy Now Spinpal Fidget
Click on "Pre-order Now"

Here's another view of the Spinpal

A video posted by physicsfun (@physicsfun) on


If you like the Spinpal- see the SPINPAL Mini (next video!)

How does this work? See this wonderful explanation by Michael of Vsauce in his video "Spinning"



Tessellating Geckos

Get a set of Escherian Geckos here

From SauterStudio on Etsy: BUY NOW Escher Glow Acrylic Gecko Tessellation Puzzle

Forks and Toothpick Balance

Explore many amazing and fun physics "tricks" with everyday objects as described in the pages of these fantastic books by Martin Gardner

From Amazon: BUY NOW "Magic of Physics" books by Martin Gardner



UV Color Changing Beads

UV Color Changing Beads: the photochromic pigment molecules actually change shape when struck by UV light, and the new shape alters their absorption properties such that they reflect brilliant colors. The color is temporary- if brought indoors, room temperature thermal energy bumps the molecules back into their original configuration, and the color fades back to white in a few minutes. Here is a bracelet under indoor light and then exposed to sunlight- the change is quick, dramatic, and can be cycled thousands of times. (Somehow a regular bead made it on the bracelet- can you spot it?) ➡️ Follow the link in my profile for more info and where to buy this and many of the amazing items featured here on @physicsfun #ultraviolet #colorchange #physics #physicstoy #chemistry #pigment #uv #colorchangingbeads #sun #sunlight #spf #amazing #photochromic #science #scienceisawesome

A video posted by physicsfun (@physicsfun) on



I got these toy color-changing beads beads from Educational Innovations a long time ago-- still the best source:


From Educational Innovations: BUY NOW UV Color Change Beads
The photochromic pigment in these beads is sensitive enough to be used as a UV radiation detector- Educational Innovations sells these beads encapsulated with a color scale to make day-to-day comparisons and offers this teachers' guide to more science fun. For example: On overcast days you will find that the UV is still pretty intense.

From Educational Innovations: BUY NOW UV Intensity Indicator

The color changing charms can be found here:

From Amazon: BUY NOW UV Color Changing Charms



Orbit Spinning Disk

Two versions to choose from-- Get one here:

From Grand Illusions: BUY NOW Orbit Disk Top (bright colors)


From Grand Illusions: BUY NOW Orbit Disk Top (clear/metal)



Modern LED Newton's Cradle

Get one here:

From Amazon: BUY NOW LED Newton's Cradle


From eBay: BUY NOW LED Newton's Cradle


Wind Spinner

Get one here:

From Amazon: BUY NOW Wind Spinners


Magnetite Hourglass
Available here. The versions with a wood base seem to work best.

From Amazon: BUY NOW Magnetic Hourglass


The Helicone
Available here!

From Amazon: BUY NOW Helicone Kinetic Sculpture


Jupiter Globe by Mova
A video posted by physicsfun (@physicsfun) on
Available for all the planets and several versions of Earth:

From Amazon: BUY NOW Mova Globes: all types
From Amazon: BUY NOW Mova Globes: Jupiter


From eBay: BUY NOW Mova Globes: all types
From eBay: BUY NOW Mova Globe: Jupiter



Tea Light Steam Engine

Tea-Light Engine: a candle powered super simple steam engine. The engine is just a coil of copper tubing filled with water. Steam builds up pushing water out with an explosive jet- which then results in a vacuum in the coil which pulls more water in to repeat the process. The water expulsion is in the form of jet directed out the end of the tube whereas the refill comes back in to the tube from a larger range of angles- so on balance the engine moves opposite to the direction of the jets. ➡️ Follow the link in my profile for info on where to get this simple engine kit and other amazing items featured here on @physicsfun #engine #physics #thermodynamics #physicstoy #steamengine #phasechange #poppopboat #science #tealight #scienceisawesome #candle #heatengine

A video posted by physicsfun (@physicsfun) on


Get the kit here:

From Grand Illusions: Tea Light Engine



The Lava Lamp

Now available in a wide variety of colors and sizes. The one in the video is the 11.5 inch model.

From Amazon: BUY NOW Lava Lamps


From eBay: BUY NOW Lava Lamps

Wikipedia: Operation and history of the Lava Lamp



Spectral Decoder CD Art: Bright Eyes Cassadaga

Spectral Decoder CD Art: hidden images are revealed through ingenious and intricate Moiré pattern interference on the CD Cassadaga by the band Bright Eyes. Carefully align and slide the included transparent sheet of horizontal prisms (similar to a Fresnel lens) and the secret images pop into view giving insights and artistic renderings of the songs on this release. The Spectral Decoder process is patented and manufactured by 3D Images Ltd. of London. The accompanying music is the opening bars from the 8th track of this CD "Middleman". ➡️ Follow the link in my profile for info on where to get this CD and many other physics toys. #moire #moirepattern #constructiveinterference #interference #physics #physicstoy #math #mathtoy #mathstoy #FocalDecoder #fresnellens #art #mathart #science #scienceisawesome #physicsfun #BrightEyes #cassadaga

A video posted by physicsfun (@physicsfun) on


Interesting band and incredible physics toy CD art:

From Amazon: BUY NOW Cassadaga



Magnetic Field Demonstrator

Get a set here:

From Amazon: BUY NOW Magnetic Field Demonstrator Set


Square Kaleidocycle: MC Escher Lizards

Square Kaleidocycle: a ring of eight linked tetrahedra. The hinged connections allow the ring to be rotated through its center. The faces of the pyramids are decorated with the famous tessellation work of MC Escher, a pattern of interlocking lizards. Note that as the kaleidocycle is rotated the lizards at the center change through each of four colors. Made from card stock, this kaleidocycle was cut and assembled from a book by mathematicians Doris Schattschneider and Wallace Walker. ➡️ Follow the link in my profile for info on where to get this and many of the amazing items featured here on @physicsfun #physics #math #maths #physicstoy #mathtoy #mathstoy #Escher #MCEscher #flexagon #hexaflexagon #kaleidocycle #tessellation #tessellations #tetrahedron #cycles #science #scienceisawesome

A video posted by physicsfun (@physicsfun) on


Make kaleidocycles, including the one in the video and several others, by directly cutting and gluing from this book:

From Amazon: BUY NOW MC Escher Kaleidocycles
From eBay: BUY NOW MC Escher Kaleidocycles


Turning Card: Moiré Pattern Kinetic Art

I purchased this card in the Exploratorium Museum Shop. The only source I could find online is the manufacture in Germany.

From Bizarr Verlag: Moire Turning Cards

Here are some drink coasters that use the same effect.

From Amazon: Moire Coasters



Cylindrical Lens Puzzle

A nice version of this puzzle is available here:


From Educational Innovations: BUY NOW Cylindrical Lens Puzzle



Flying Seagulls by Otagiri

Action and Motion series Kinetic Art by Otagiri can often be found on eBay. Vintage from the 1970s, these sculptures utilize the physics of low center of mass (and associated stable equilibria), pendulum motion, and angular momentum.

From eBay: Otagiri Kinetic Art

Kyle's Kinetics offers state of the art stainless steel kinetic art on Etsy: Kyle's Kinetics
Check out an example of his recent work in the video below:


Balancing Man: low center of mass kinetic art

Balancing Man: low center of mass kinetic art sculpture by Kyle Auga @kyleskinetics has the curious motion of a 3D physical pendulum- the complex motion can be broken down into oscillations along two dimensions and rotation about the point of contact. Made of stainless steel with a powder-coated base, the stick figure plus counterweights and bar structure is designed such that its center of mass is few centimeters below the contact point when at rest. When the sculpture is tipped the center of mass swings under the pivot point in this stable equilibrium condition- no magnets needed to create this physics magic. ➡️ Follow the link in my profile for info on where to get Kyle's work and many other physics toys. #KylesKinetics #kineticart #centerofmass #lowcenterofmass #balancetoy #physicstoy #physicsart #physics #stableequilibrium #equilibrium #oscillations #physicalpendulum #pendulum #torque #restoringforce #desktoy #science #scienceisawesome #newtonssecondlaw #centerofgravity

A video posted by physicsfun (@physicsfun) on


Kyle Auga creates incredible kinetic sculptures- all of them use physics to showcase the unexpected nature of nature.

Check out Kyle's art on Etsy: Kyle's Kinetics


Photicular 3D Animation Book
Photicular 3D Animation Book: the latest in lenticular image technology produces these looping motion images that look like videos on a computer screen. This amazing book of 8 astonishing moving images was created by photographer/artist/inventor Dan Kainen where the moving images use Kainen's patented process where a specially processed image slides under a thin film of lenticular lenses. Writer Carol Kaufmann puts each image into context incorporating fun science facts appropriate for kids yet informative to all. My review: a wonderful use of physics to teach science! ➡️ Follow the link in my profile for info on where to buy this book (and four others in this series) as seen here on @physicsfun #photicular #lenticular #photicularbook #3D #physics #physicstoy #optics #stereoscopic #magnifier #cylidricallens #lens #science #scienceisawesome
A video posted by physicsfun (@physicsfun) on
Kainen and Kaufmann now offer four books in this series- all amazing!

From Amazon: BUY NOW Photicular Animation Books
Including:





Vortex II Coin Bank


Transparent version of the famous Vortex Bank (see next video). Improved performance on how long it takes the coins to drop with the added benefit of viewing the motion from the side.

From Amazon: BUY NOW Vortex II Bank


Vortex Coin Bank

A video posted by physicsfun (@physicsfun) on



Get one here:


From Educational Innovations: BUY NOW The Vortex Bank



Vintage Radiometer Collection

Vintage Novelty Radiometers: my collection of hard to find radiometers with images that spin with kinetic energy converted from light. The five shown here include one with the standard black and white square "vanes", a cutout Mickey Mouse, a spacewalking astronaut, a waving US flag, and a set of silhouetted airplanes. Light heats up the vanes which then heat up the very thin gas left in the bulb- the black side of the vane is hotter and any gas molecules that comes into contact with the black fly off at a faster speed imparting impulse to the rotor. Most of theses were produced in the 1960s by Kyp-go, maker of Balafire bulbs. Radiometers with special vanes like this are no longer in production but sometimes pop up for sale online as antiques. ➡️ Follow the link in my @physicsfun profile for more info and places to purchase a radiometer. #CrookesRadiometer #radiation #radiometer #light #lightmill #physics #physicstoy #photon #thermodynamics #science #kineticenergy #KypGo #Balafire #MickeyMouse #Disneyana #momentumtransfer #recoil #impulse #angularmomentum #scienceisawesome

A video posted by physicsfun (@physicsfun) on


Available from these sources:


From Educational Innovations: BUY NOW Radiometer

A wide variety available here, including some nice blown glass displays:

From Amazon: BUY NOW Radiometers

Hundreds of options on eBay:

From eBay: BUY NOW Radiometers

A bit of history about this classic physics toy: The Radiometer



Spinning Copper Cutout Top

Get this amazing top here:

From Etsy- ShirePostMint: BUY NOW Spinning USA Top

Another look:


See the next video for another physics toy made by ShirePostMint

Strobe Coin Spinner
Strobe Coin Spinning Top: beautiful coin tops made of solid copper and silver display a remarkable spinning strobe pattern when viewed on video from a smartphone. Incredible art/physics from @shirepostmint that takes advantage of aliasing and the wagon-wheel effect. The black enamel pattern on the top of the coin is specifically designed to interact with the frame rate of the video process to produce the intricate motions of the concentric circle patterns seen here, and on the back of the coin a starburst pattern provides similarly interesting effects. These coins can be spun on both sides with spin times reaching 12 minutes! The contact points are super hard spheres of silicon nitride black ceramic (Si3N4) providing a low friction bearing. ➡️ Follow the link in my profile for information on where to buy - and a coupon code to save 10%! #physicstoy #executivetoy #coin #cointop #strobetop #pockettip #spinningtop #angularmomentum #physics #rpm #aliasing #wagonwheeleffect #science #scienceisawesome
A video posted by physicsfun (@physicsfun) on
SPECIAL OFFER!! for @physicsfun followers from Shire Post Mint: Use discount code "PHYSICSFUN" and save 10% on a purchase of any Strobe Coin Spinner.

These are not just tops, but works of art. Available in Copper and in Silver!

From Shire Post Mint on Etsy: Copper Strobe Top

and in one Troy once of 999 silver

From Shire Post Mint on Etsy: Silver Strobe Top

Here is another video of these Strobe Coins from @ShirePostMint


Climbing Sphere Spiral Illusion

I bought this kinetic illusion at the Exploratorium Museum back in 1995. Not sure if this model is still available anywhere. Here are some available kinetic illusions that operate on the same principle:

From Amazon: Spiral Spinner Illusion


From eBay: Spiral Spinner Illusion




Click here for more:
Physics Toys,

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