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Physics Toy Store 02


Orbit Spinning Top Disk
This unique toy came to me from Germany:

From Kreiselparadies.de: Orbit Spin Disk


RGB Color Addition

RGB Color Addition: three LED light boxes demonstrate the additive nature of colored light. Mixing Red, Green, and Blue to create Yellow, Magenta, and Cyan. An object casts shadows showing the following mixings: R+G=Y, G+B=C, and R+B=M. Adding all three R+G+B produces White (a little pinkish here as the Red is a little bit bright for complete white balance). RGB color addition is the basis for all computer and TV displays- all the colors you are looking at right now on your screen are made from adding pixels of R G and B in different proportions and intensities! ➡️ This video features Light Blox available from Laser Classroom @laserclassroom. Follow the link in my profile for info on where to get these and other amazing items featured on @physicsfun. #physics #physicstoy #RGB #RGBcolor #optics #shadow #coloraddition #visualperception #colorperception #science #wavelength #frequency #scienceisawesome

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These Light Blox are available in this nice kit from Laser Classroom, a science education supplier:

From Laser Classroom: Light, Color and Shadow Kit

Wikipedia has a fantastic introduction on the topic of RGB Color Theory


Avalanche at the at the Exploratorium

Avalanche @exploratorium : Spontaneous stratification from pouring granular mixtures. Typically pouring stuff together results in further mixing, yet here the result is an ordered sorting into layers. The larger rounded dark grains separate from the smaller sharp-edged white grains forming the layers you see here. The darker grains alone would stack into a steeper pile (larger angle of repose) than the white which would form a less steep pile. An amazing physics discovery of the 1990s showcased here by Ken Brecher and Erik Thogerson.๐ŸŒŸ With special thanks to the Exploratorium! ➡ Follow the link in my profile for more info about the Exploratorium and where to find many of the amazing items featured here on @physicsfun. #exploratorium #physics #physicsfun #physicstoy #granular #stratification #spontaneousstratification #angleofrepose #avalanche #kineticart #science #scienceisawesome

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Make a similar device using CD cases: Step by step instructions in this Exploratorium Science Snack: Avalanche

Visit the Exploratorium


Monochromatic Room at the Exploratorium

Monochromatic Room @exploratorium: a photo of colorful San Francisco is illuminated by a very narrow frequency band of light, with a wavelength of 589nm- the characteristic spectrum of sodium vapor lamps at low pressure. Seeing color is both about the source of illumination and how an object interacts with light. Here a white LED flashlight can momentarily “paint” the scene with color. Sodium vapor lights are a type of gas-discharge lamp that uses sodium metal vapor in an excited state with two dominant spectral lines at 589.0 and 589.6nm, producing the bright yellow light in this exhibit. ๐ŸŒŸ Thanks to the @exploratorium! ➡️Follow the link in my profile for more info and where to find many of the amazing items featured here on @physicsfun #physics #physicstoy #physicsfun #sodiumvapor #sodiumvapourlamp #monochromatic #monochromaticlight #excitation #dischargelamp #electronexcitation #colorvision #exploratorium

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The light source in this exhibit produces a frequency at 589nm

Wikipedia has a nice description of the physics and applications of Sodium Vapor Lamps

Visit the Exploratorium


MicroBank
Available here:

From eBay: BUY NOW MicroBank Coin Illusion
Galileo Drop Tubes

Galileo Drop Tubes: in a partial vacuum (left tube), paper confetti and balls of lead shot fall together and hit the bottom at the same time- as Galileo predicted some 400 years ago! The tube on the right has air at standard pressure, the left tube is at a partial vacuum similar to that of a light bulb. In slow motion one can see that the bits of paper fall at the same rate as lead shot when the effects of air resistance are reduced, showing that all objects fall with an acceleration of g=9.8 m/s2 near the Earth’s surface. ➡️ Follow the link in my profile for more info and where to find most of the amazing items featured here on @physicsfun #physics #physicstoy #physicsfun #glass #galileo #galileogalilei #freefall #gravitation #9.8m/s2 #droptubes #vacuum #acceleration

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These drop tubes where kindly sent to me from this shop in Germany:


From experimentis-shop.de: BUY NOW Galileo Tubes


Similar experiment ON THE MOON!

Element Enigma: Six Metal Puzzle
Available for order here:

From Kickstarter: Order NOW Element Enigma


Beat Interference Chimes

Beat Interference Chimes: these aluminum chimes resonate at slightly different frequencies. When both chimes are struck the sound waves interfere both constructively and deconstructively producing the interesting wavering sound called a beat. The beat frequency- the rate at which the sound goes loud to quiet- is equal to the difference between the frequencies of the two chimes. The same physics applies when tuning a guitar using fifth and seventh fret harmonics. ➡️ Follow the link in my profile to get a chime set and learn more about this physics phenomena. @physicsfun #physicstoy #soundwaves #interference #beatfrequency #superposition #waves #pure #tones #vibrations #chimes #frequency #resonance #science #acoustics #constructiveinterference #decostructive #scienceisawesome #sinewave

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Get a set here:


From Educational Innovations: BUY NOW Beat Interference Chimes

Wikipedia: Features a nice introduction and helpful graphics explaining the physics of this beat interference phenomena.


Magnetic Tip Spinning Top
Available here:

From Grand Illusions Ltd.: BUY NOW Magnetic Tip Top with Spiral and Snake


Skew Dice

Skew Dice: these unusually shaped dice are completely fair- roll them and the probability of outcomes are identical to a standard set of dice! The odd shapes are a special type of polyhedra called asymmetric trigonal trapezohedra which come in right and left handed versions- this set has one of each (mirror images of each other). What allows this shape to be fair like a cube has to do with the property of being isohedral, where each face of an object will map onto all other faces via a symmetry of the object. Manufactured by The Dice Lab. ➡️ Follow the link in my profile for info about where to get these and other amazing items featured here on @physicsfun #mathtoy #geometry #physics #physicstoy #fairdice #isohedral #polyhedra #skewdice #trigonal #probability #mirrorsymmetric #trapezohedron #dice #science #mathstoy

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Available here!

From Amazon: BUY NOW Skew Dice


The Levitron

The Levitron: spin stabilized magnetic levitation- will fly for about 3 minutes or more per launch. The spin rate of the magnetic top must be just right for flight, not too fast or too slow. Also the weight of the top must be adjusted to within 1 gram to achieve equilibrium between the pull of gravity and the magnetic repulsion from the large donut shaped magnet in the wood base. Repost of probably my favorite physics toy of all time. ➡️ Follow the link in my profile for information on where to get a Levitron and many of the other amazing items featured here on @physicsfun. #physics #physicstoy #levitron #magnet #magneticfield #magnetism #Earnshawstheorem #equilibrium #gravity #angularmomentum #precession #amazing #science #levitation #maglev #scienceisawesome #stableequilibrium #neodymium #neodymiummagnet

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Levitron Tops were produced in the 1990s and are out of production and getting harder to find. Some models are still available here:

From eBay: BUY NOW Levitron Top
See my blog post for more about the physics of the Levitron Top

Polage: art with polarized light

Polage: art with polarized light using polarizing sheets and cellulose to create changing forms and colors. Rotation of the filter allows the artist to incorporate more than one image and produce colorful metamorphosis. This piece was created by Austine Wood Comarow- the main developer of this art form- and this piece is signed "Young Rose 1987 28/50". Light has an orientation, denoted as polarization, and a polarizing filter can be used to block certain orientations. The colors in polage come from how the molecular structure of plastics can rotate the polarization of any light that passes through- but only light corresponding to yellows and greens gets rotated in plastic, reds and blues not so much. Polage uses different layers of plastic to rotate the light, and then polarizing filters are added to allow only certain frequencies (colors) of light through. ➡️ Follow the link in my profile for more info about the physics of polage and where to get art featured on @physicsfun #polarizer #polarizedlight #light #optics #physics #physicstoy #kineticart #electromagnetism #polage #science #linearpolarization #scienceisawesome #AustineWood @austine_studio

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Austine has an on-line gallery of her amazing work. Click on any image to see a short video of more polage in action:

From Austine Studios: Polarized Light Art
Sometimes Austine's work can be found on eBay:

From eBay: SEARCH Polage by Austine

Here is a very nice discussion about polarization that pertains to Polage: Experiments With Polarized Light by Donald E. Simanek

See the next video and links for more physics fun with polarization.


Three Polarizing Sheets

Three Polarizing Sheets: quantum mechanical behavior with light polarization. Two linear polarizing sheets oriented at 90 degrees blocks all light- if a third sheet is placed between, oriented at 45 degrees, an eighth of the original light then gets through! A classic example of the quantum mechanical phenomenon of superposition of states as it pertains to the polarization orientation of photons and probability of transmission. ➡️ Click on the link in my @physicsfun profile to learn more and for a good source to obtain inexpensive polarization film. #polarization #light #physics #physicstoy #physicsfun #polarizingfilter #quantum #quantummechanics #photons #3polarizerparadox #polarizedlight #electromagnetic #electromagneticwaves #science #electromagnetism #scienceisawesome

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Get some polarizing filter sheets here:

From Amazon: BUY NOW Polarizing Sheets

Explore many aspects of polarization with this kit:


From Educational Innovations: BUY NOW Polarizing Filter Demo Kit

See this short introduction to linear polarizing filters on Hyperphysics, and many more details on polarization from Wikipedia.


Ferrofluid Magnetic Tree Sculpture: Nano Tree by Concept Zero
Choose from black, blue, or gold ferrofluid:

Available on Etsy: BUY NOW Nano Tree Ferrofluid Sculpture
See the amazing collection of ferrofluid displays and art at the Concept Zero webpage and check out the next video below!


Plasma Arc Lighter

Plasma Arc Lighter Physics: dual arcs of plasma exceed 1100 C (2000 F) on this flameless lighter. The breakdown voltage of air is about 3000 Volts per mm. Thus the circuit in the lighter must provide about 12,000 volts to produce this 4mm arc. The circuit is a simple one made possible by a transformer with very fine wire windings, a transistor, and a powerful lithium-ion battery (USB rechargeable). The circuit produces high frequency current oscillations in the coils that in turn produce the needed high voltage. Like having a Tesla coil in your pocket! ➡️ Follow the link in my profile for info on where to get this and many of the amazing items featured here on @physicsfun #physics #physicstoy #plasma #highvoltage #tesla #teslacoil #highfrequency #plasmaarc #flameless #transformer #scienceisawesome

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Get one here- but like any source of flame- use with caution!

From eBay: BUY NOW Plasma Arc Lighter

From Amazon: BUY NOW Plasma Arc Lighter

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Uranium Glass Marbles
Available here:

From Amazon: Uranium Marbles

And get the 405nm Laser here:

From eBay: 405nm Laser


Lightning 2000 Plasma Lamp
This vintage item can sometime be found on eBay. LavaLamp made a similar product, and advertisements made use of the lighting lamp:

From eBay: BUY NOW Lightning Plasma Lamps
Similar devices by Lumisource are still available here:

From Amazon: BUY NOW Lightning Plasma Lamps


Acrylic Refraction Art: Vasa Mihich
Vasa Mihich's gallery offer this piece for sale and others:
Gallery of Vasa Mihich
Also often available on eBay:

From eBay: BUY NOW Art by Vasa Mihich


Dodecahedron Holocope

12-Faced Holoscope: a dodecahedron of mirrors. A type of kaleidoscope based on truncated Platonic solids by artist Gary Allison. This holoscope is in the form of a dodecahedron with each corner cut off allowing light to enter through triangular holes. Through the symmetry of the reflections, these triangles appear as an infinite array of tetrahedrons. Each holoscope has stained glass on the exterior and front surface mirrors on the inside which create the amazing and seemingly impossible spaces within. ➡️ Follow the link in my profile for more info on holoscopes and the artist that makes them, and where to get other amazing items featured here on @physicsfun #kaleidoscope #mirrors #reflection #multiplereflection #geometry #cube #dodecahedron #platonicsolid #optics #light #infinity #physics #physicstoy #science #mathtoy #mathstoy #scienceisawesome

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See the next video and links for info on holoscopes and the art of Gary Allison

Cube Holocope

The Holoscope: a cube of mirrors. A type of kaleidoscope based on truncated Platonic solids by artist Gary Allison. This holoscope is in the form of a cube with each corner cut off allowing light to enter through triangular holes. Through the symmetry of the reflections, these triangles appear as an infinite array of stellated octahedrons. Each holoscope has stained glass on the exterior and front surface mirrors on the inside which create the amazing and seemingly impossible spaces within. ➡️ Follow the link in my profile for more info on holoscopes and the artist that makes them, and where to get other amazing items featured here on @physicsfun #kaleidoscope #mirrors #reflection #multiplereflection #geometry #cube #platonicsolid #optics #light #infinity #physics #physicstoy #science #mathtoy #mathstoy #scienceisawesome

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Order a holoscope from the artist's gallery here:

The artwork of Gary Allison: BUY NOW Holoscopeworld.com


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: BUY NOW Spiral Spinner Illusion


From eBay: BUY NOW Spiral Spinner Illusion




Click here for more:
Physics Toys,

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