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Physics Toy Store 08



Light Pipe

Get one here:

From Amazon: BUY NOW Display Stand Light Pipe

Very inexpensive LASER pointers available here:

From eBay: BUY NOW Green Laser Pointer



Mini Hoberman Sphere

Many sizes and colors available:

From Amazon: BUY NOW Hoberman Spheres


Meteorite with Widmanstatten Pattern

Available here:

From eBay: BUY NOW Meteorite Slice
This kind of display stand also available in many sizes:

From eBay: BUY NOW Caliper Display Stand



Eames Era Kinetic Art

These vintage atomic art pieces are almost always available on eBay and Etsy:

From eBay: BUY NOW Atomic Kinetic Art

From Etsy: BUY NOW Kinetic Atomic Art


Whee-Lo Vintage Rail Twirler

Vintage Whee-Lo toys on eBay- play with a piece of history!

From eBay: BUY NOW Vintage Whee-Lo
Many modern versions available- many light up!

From Amazon: BUY NOW Rail Twirler Magnet Wheel



Heat Pipe Demo Kit

Heat Pipe: a device that transfers heat with great efficiency. Here a liquid crystal goes from green (room temp) to black (near freezing) showing the heat transfer to a piece of ice through a heat pipe (top) and a similar sized piece of solid copper rod (bottom). As you can see the heat pipe cools much faster than the copper rod even though copper is an excellent conductor of heat. The heat pipe is a thin shell of copper that surrounds a tube of sponge like material filled with some water vapor and sealed with a low pressure inside. The heat is transferred from one end to the other by the phase transition of water- at the warm end water in the sponge evaporates into vapor absorbing heat energy, the vapor travels down the hollow core to the cold end where it condenses into liquid releasing heat energy. The water is wicked by the sponge to the warm end and the process repeats. Heat pipes like this one pull heat away from the CPUs in modern computers preventing them from melting. The amazing heat transfer ability is clearly felt in the fingertips if one places the copper rod and heat pipe into a glass of ice water-the heat pipe immediately gets cold! Follow the link in my profile for info on where the buy this heat pipe demo and other amazing items featured here on @physicsfun. #physics #physicstoy #physicsfun #thermodynamics #heat #heatpipe #physicsdemo #liquidcrystal #thermometer #heattransfer #conductivity #phase #phasetransition #latentheat #science #scienceexperiment #scienceisawesome

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The heat pipe kit includes the pipe and a copper rod:


From Educational Innovations: BUY NOW Heat Pipe Demo Kit
Here is the liquid crystal sheet used in the video (range 20-25C):

From Educational Innovations: BUY NOW liquid crystal thermometer sheet



Pet Tornado

This vintage item is out of production. Here are some similar times based on whirlpool vorteces:

From Amazon: BUY NOW Vortex Lamps


Extreme Viscosity Kinetic Sculpture




Ooze Timer

Ooze Tube: viscous polyisobutene fluid timer toy. Some interesting physics phenomena are found in this kinetic art novelty item: the "liquid rope-coil effect" where the fluid thread coils and stacks as it lands on the pooling surface, and a curious periodicity in the rate of flow that is related to the formation of non-spherical bubbles as the air and fluid trade places (shown in time-lapse). The physics of the coiling effect is complex (see the link in my blog). Broadly speaking the coiling is due to the bottom of the fluid rope widening at the contact point with the surface, and as it widens the fluid slows down but not evenly. This uneven rate of flow produces a bend and the elasticity of the stream constrains the rope to a limited radius- hence a stack of coils. ➡️ Follow the link in my profile for info on where to get this and many of the amazing items featured here on @physicsfun #ropecoil #viscosity #fluiddynamics #fluidmechanics #physics #physicstoy #viscousbuckling #geophysics #helix #helicalcoil #liquidrope #liquidropecoileffect #ooze #oozetube #coileffect #kineticart #science #scienceisawesome

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Available in a variety of colors:

From Amazon: BUY NOW Ooze Timer

The physics of the liquid rope-coil effect is pretty complex. Here is a recent scientific paper on the topic with nice illustrations.

Journal of Fluid Mechanics: Multiple coexisting states of liquid rope coiling



Mirror Anamorphic Cup & Saucer

Get a set here:

From Nuku: BUY NOW Anamorphic Coffee and Tea

Some amazing anamorphic puzzles - these come with a cylindrical mirror to reveal a hidden image!

From Amazon: BUY NOW Cylindrical Mirror Anamorphic Puzzles



Chaotic Pendulum Kinetic Art: Skateboarder by Otagiri

These vintage pieces are often available on eBay- two for sale as of this post.

From Ebay: BUY NOW Vintage Otagiri Kinetic Art



Magni-Orb by Sven Petersen

Magni-Orb: kinetic art as oscillations about a magnetic equilibrium point. The base and sphere are carved from rosewood and have strong magnets embedded within them that produce an attraction. If the sphere is given some initial rotation it will exhibit complex orbits as the energy trades back and forth between potential energy and kinetic energy. The motion eventually damps out due to friction. A creation by Sven Petersen and imported by SAAP Denmark circa 1970. ➡️ Follow the link in my profile for info on where to buy this and other amazing items featured here on @physicsfun #oscillations #equilibrium #stableequilibrium #physics #physicstoy #kineticart #art #SAAP #MagniOrb #rosewood #magnets #magnetism #magneticfield #magneticattraction #dipole #1970 #equillibriumpoint #science #scienceisawesome

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This vintage item is often available on eBay (1 available as of the date of this post)

From Ebay: BUY NOW Magni-Orb



Chain Fountain

Chain Fountain: as the chain flows out of the glass under the pull of gravity the beads don't simply roll over the edge but instead arc up upward like a fountain. As each link is pulled and tilted upward the adjacent link is tilted downward and pressed into the pile- by Newton's 3rd law the pile presses back pushing each bead upward into the air. A segment of the video is shown in slow motion where the fountain is at maximum height. This phenomena was recently discovered by Steve Mould (more to be seen at his YouTube channel) and the details of the physics is described in the Proceedings of the Royal Society by Biggins & Warner (2014). ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #chain #chainfountain #physics #physicstoy #gravity #siphon #polymer #newton #newtonsthirdlaw #force #flow #fluid #chainreaction #science #scienceisawesome #MouldEffect @festivalofthespokennerd

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The best effect (highest fountain) is obtained by using #10 size chain with a bead diameter of 3/16" (4.8mm). This spool has 100 feet of chain, the same length as used in the video.

From Amazon: BUY NOW #10 ball chain


Wikipedia has the details on the discovery of the chain fountain, and for those that want the physics here is the paper: Understanding the Chain Fountain from Proceedings of the Royal Society A, 2014



Jitter Gyro Ring

Jitter Gyro Ring: a 1990s skill toy craze out of New Zealand that features small rings that "roll" down a thicker steel ring and making a characteristic chattering sound as they go. Swiping the small rings gets them spinning and gives them angular momentum. Centripetal acceleration then keeps the inside of the small rings in contact with the steel ring so that they roll around as they descend (seen here in 240fps slow motion). The challenge is to rotate the large ring fast enough to keep the small rings in motion. ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #physics #physicstoy #angularmomentum #chatterring #jitterring #gyroring #centripetalacceleration #science #scienceisawesome #rotationalinertia

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Available in "pro" metal version and colored rings version:


From Educational Innovations: BUY NOW Jitter Gyro Ring

From eBay: BUY NOW Color Jitter Gyro Ring


Magnetic Suspension Pencil Topper

Made by HogWild Toys

From Amazon: BUY NOW Skydiving Pencil Topper
From HogWild Toys and Gifts: BUY NOW Skydiving Pencil Topper



Benton/Rainbow Hologram: TNG Enterprise edition

Benton Hologram: also called a rainbow hologram which are often embossed on foil as means of production. Commonly found on credit cards and forms of currency as a method of anti-counterfeit security, this hologram of the Starship Enterprise is an especially nice example of this hologram type with striking 3D effect. Here the motion is produced by moving the point source of illumination (a halogen lamp). Amazing what manipulation of light interference can create! ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #hologram #bentonhologram #laser #physics #physicstoy #startrek #optics #interference #electromagnetism #diffraction #rainbowhologram #science #scienceisawesome

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These are available on eBay!

From Ebay: BUY NOW Star Trek Rainbow Hologram



Nitinol Heat Engine

Get one here:

From Amazon: BUY NOW Nitinol Wire Loop Heat Engine



Nitinol Memory Wire

Get a sample from these sources:

From Ebay: BUY NOW Nitinol Memory Wire shape sample


From Educational Innovations: BUY NOW Nitinol Memory Wire Spring


Kalliroscope by Paul Matisse

Kalliroscope: rheoscopic fluid reveals the convection currents generated by the heat emanating from fingertips. Invented and produced by Paul Matisse in the 1970s, suspended microscopic flat crystals of guanine reflect light and allow visualization of the fluid's motion. This rheoscopic fluid is special in that the guanine crystals are the same density as the tetrachloroethylene liquid so the crystals never settle to the bottom making the fluid reactive to showing the slightest movement. ➡️ Follow the link in my profile for more info on where to get many of the curiosities featured here on @physicsfun #kalliroscope #matisse #kineticart #rheoscopicfluid #rheoscopic #Matisse #convection #kineticart #fluiddynamics #1970 #1970s #Calder #kineticsclupture #kalliroscope #physics #physicstoy #art #psychedelic #lavalamp #science #scienceisawesome #fluiddynamics #rheoscopic #physics #physicstoy #convection #convectioncurrent #science #perchloroethylene #tetrachloroethylene #1970

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These vintage items can sometimes be found on eBay:

From eBay: BUY NOW Kalliroscope
Make your own device with a bottle of rheoscopic fluid:


From Educational Innovations: BUY NOW Rheoscopic Fluid



Revolution

This toy can sometimes be found on eBay. Here is a photo of the Revolution and its original packaging from the 1990s:


Quality models of the modern version of this physics toy are still available


From Educational Innovations: BUY NOW Magnetic Levitator
From Amazon: BUY NOW Magnetic Levitator



Penultimate Levitating Ballpoint

Available here:

From Amazon: BUY NOW Penultimate Floating Pen
From eBay: BUY NOW Penultimate Floating Pen



Volumes of Constant Width

Get a set of Reuleaux solids here:

From Shapeways: BUY NOW Volumes of Constant Width



Precession of a Gyroscope

Get one here:

From Amazon: BUY NOW Gyroscopes
From eBay: BUY NOW Gyroscopes



Balance Bird

Get one here:

From Amazon: BUY NOW Balance Bird



Newton's Yo-Yo


Get a set here:


From Educational Innovations: BUY NOW Newton's Yoyo
From Amazon: BUY NOW Newton's Yoyo/Clackers



Poly Density Puzzle

Poly Density Puzzle: a science brain teaser- white beads and blue beads "float" oddly separated beneath the surface of a clear liquid. If the contents are mixed by shaking the container, the white beads gather at the top and the blue sink to bottom! Adding to the mystery; after about 30 seconds the two layers of beads will have slowly moved back to the middle. What is your guess as to the physics behind this behavior? ➡️ Follow the link in my profile for info on where to get this puzzle (and the physics that explains it) along with many other amazing items featured here on @physicsfun #physicstoy #physicspuzzle #density #densitycolumn #immiscible #immiscibleliquids #bouyancy #archimedes #archimedesprinciple #saltingout #physics #science #scienceisawesome #polydensity

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Get the kit here:


From Educational Innovations: BUY NOW Polydensity Bottle Kit


Thermochromic Eclipse Postage Stamps

Thermocromic Eclipse Postage Stamps: In commemoration of the total solar eclipse next Monday the US Post Office has released their first ever stamp featuring thermocromic ink. Thermotropic liquid crystals go from opaque to transparent during a phase change from a crystal to liquid state. Here the warmth of the hand reveals the face of the moon in front of the solar corona. The first physics toy stamp! ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #liquidcrystal #phasetransition #themotropic #thermometer #solareclipse #totaleclipse #corona #moon #stamp #usstamp #postagestamps #thermochromic #physics #physicstoy #phase #science #solidstate #souvenir #scienceisawesome

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Available from the US Post Office and here:

From Amazon: BUY NOW Thermochromic Eclipse Stamps



50|50 Cube


From KickStarter: ORDER NOW 50|50 Cube


Diamagnetic Mini Hoverboard

Diamagnetic Mini Hoverboard: in this commercially available version a thin pyrolytic graphite sheet floats above a concave powerful neodymium magnet creating an environment with minimal friction- the thin sheet carrying a lightweight foam Hoverboard will swing back and forth for a couple minutes. By NeoLev- with a Back to the Future II theme! Diamagnetic substances develop temporary repulsive magnetic fields only when they are exposed to a magnetic field from another source. Graphite of this sort is the most diamagnetic substance known. ➡️ Follow the link in my profile for info on where to buy this and other amazing items featured here on @physicsfun #diamagnetism #NeoLev #physics #physicstoy #hover #hoverboard #BttF #magnetism #magneticfield #electromagnetism #levitation #maglev #pyrolytic #neodymium #science #scienceisawesome

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Get one here:

From Amazon: BUY NOW NeoLev Hoverboard

See the next video for a DIY version...


Diamagnetic Micro-Hoverboard

If you want to make one of these you will need 1) some pyrolytic graphite (which can easily be sliced and carved):
From eBay: BUY NOW pyrolytic graphite
2) some neodymium magnets: See next video for info on the concentric magnet racetrack.
3) shrink and print this image on medium weight paper,

and 4) cut and assemble!

Pyrolytic Graphite is fun to experiment with on its own. Educational Innovations has this affordable starter kit:


From Educational Innovations: BUY NOW Diamagnetic Levitation Kit



Diamagnetic Racetrack

Diamagnetic levitation kits are available here: the racetrack magnets are a bit pricey though!

From eBay: BUY NOW Diamagnetic Levitation Kit




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Physics Toys,

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