Colordrippers: immiscible liquids of varying density and viscosity, trade places under gravity producing mesmerizing patterns. The less dense liquids in each container rise in accordance with Archimedes principle through a hole in between the clear walls of acrylic. Every @colordripper contains a unique combination, in each side of the double container, of colored oils, kerosine, and other household chemicals- some mixes have thicker liquids which move slower and others with fast moving thin oils.⌛️Special discount for @physicsfun followers! ➡️ Follow the link in my profile and use code "physicsfun". #fluiddynamics #immiscible #liquiddrop #oildrop #hourglass #physics #physicstoy #surfacetension #viscosity #archimedesprinciple #bouyancy #scienceisawesome
Special discount for @physicsfun followers!
Use discount code "physicsfun" for 7% off.
From colordripper.com: BUY NOW Colordipper
Discount code: "physicsfun"
Balance & Poise
Balance & Poise: low center of mass kinetic art sculpture featuring a graceful girl in a yoga pose- a perfect physics toy graduation gift for my daughter! This delightful creation by Kyle Auga @kyleskinetics has the curious motion of a 3D physical pendulum- a complex motion which can be broken down into oscillations along two dimensions and rotation about the point of contact. Crafted from stainless steel, 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 kinetic art like this and other amazing items featured here on @physicsfun #kineticart #centerofmass #lowcenterofmass #balancetoy #physicstoy #physicsart #physics #stableequilibrium #equilibrium #oscillations #physicalpendulum #pendulum #torque #restoringforce #desktoy #science #scienceisawesome #newtonssecondlaw #centerofgravity
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:
From Etsy: BUY NOW Kyle's Kinetics
Static Spheres: triboelectric effect toy. The red polystyrene spheres are given an acquired net negative charge, and their mutual repulsion allows them to jump a centimeter or more as charge is manipulated on the plastic container. The spheres stick to the plastic after it was charged by rubbing with a piece of wool cloth. Bringing an object near the container momentarily moves electrons (charge) around creating repulsive forces (sphere v. sphere) and attractive forces (spheres and container) resulting in the observed motions. The red spheres interact with each other without coming into physical contact (as shown in 240 fps slow motion) as like charges repel. A wonderful and affordable physics toy free m @educational_innovations ➡ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #electricity #staticcling #staticelectricity #physics #physicstoy #polystyrene #electromagnetic #electromagnetism #science #coulomb #coulombslaw #science #scienceisawesome
Get one here!
From Educational Innovations: BUY NOW Static Spheres
Thaumatrope: the physics and psychophysics of vision in this reproduction of a toy invented in 1824. Still images flashed in rapid succession produces the the combined image of bird + cage through persistence of vision. When the image flash rate is above the flicker fusion frequency (approximately 16Hz) we perceive fluid motion- the basis for all movies and TV. 🌟Thanks to @artofplay for sending me this wonderful reproduction! ➡️ Follow the link in my profile to get your own thaumatrope and for info on how to buy many of the items featured here on @physicsfun #thaumatrope #physics #psychophysics #physicstoy #perception #rotation #mushroom #angularmomentum #flickerfusion #flickerfusionfrequency #science #scienceisawesome
Get a set here:
From eBay: BUY NOW Thaumatropes
Wikipedia has some good details on the history and operation of the Thamatrope
Dancing Drops at the Exploratorium
Dancing Drops @exploratorium: an exhibit employing the Coandă effect on water droplets -an air stream attaches and wraps around the drops temporarily trapping them. As the air changes direction to flow around a drop, momentum is imparted to it pushing the drop against gravity. Constrained mostly by surface tension, under these conditions the water drops also have irregular and changing shapes leading to erratic motions in the uneven airstream.🌟 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 #coanda #coandaeffect #gravity #newton #newtonssecondlaw #newtonsthirdlaw #actionreaction #equilibrium #netforce #physics #physicstoy #magnuseffect #science #scienceisawesome
Visit the Exploratorium
Oil Drop Timer with Dolphins
Oil Drop Timer: immiscible fluids of different densities stay separate under gravity with the lightest density on top. The density of the plastic dolphins is greater than the density of the top fluid but less than the density of the bottom fluid, so they stay at the boundary in equilibrium. The dolphins have a metal weight in their tails so that the buoyant force will keep them upright even as the liquids trade places (2 minutes shown in time-lapse). Archimedes' Principal at work here at multiple levels. ➡️ Follow the link in my profile for information on where to get this and many other amazing items featured here on @physicsfun #physicstoy #physicsfun #archimedes #archimedesprinciple #bouyantforce #liquidmotion #fluiddynamics #science #scienceisawesome #immiscible #density
Get one here:
From Amazon: BUY NOW Dolphin Timer
Spindrift at the Exploratorium
Spindrift @exploratorium: surprisingly complex and graceful motion arise when rings are set to roll on a parabolic surface in this exhibit created by artist Shawn Lani at the Exploratorium in San Francisco. As the energy of the ring's center of mass trades to and fro from potential to kinetic, odd motions such as flip-flops, figure eights, and quick spins can occur in a determined but chaotic fashion. 🌟 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 #rolling #kineticart #kineticenergy #potentialenergy #gravity #chaos #chaoticmotion #energytransfer #science #scienceisawesome
See more photos and video of this exhibit at the artist's online gallery: Spindrift and other installations by Shawn Lani
Visit the Exploratorium
Laser Lissajous Show
Laser Lissajous: two rotating mirrors and a red laser project Lissajous figures on the wall. With the laser beam bouncing off both mirrors before it hits the wall, the ratio of the rotation speeds of mirror 1 to that of mirror 2 determines the shape of the figure. Sold as a "pocket laser show" for about $19. ➡️ Follow the link in my profile for more info and where to buy this laser show and many more of the amazing items featured here on @physicsfun #lissajous #physics #physicstoy #math #mathtoy #harmonic #harmonicmotion #parametric #rave #laserlightshow #amazing #science #scienceisawesome #oscilloscope #mathstoy
Get one here:
From eBay: BUY NOW Mini Laser Show
Simple Electric Motor
Electric Motor: in its simplest form- coil, magnet, and battery. The wire of the coil has an insulating coating- and this coating is carefully scrapped off one side on each end. When current passes through the coil it becomes an electromagnet and the permanent magnet repels it making it spin- as it turns the currents goes on and off depending if the copper posts are in contact with the bare wire (current on) or the still insulated wire (current off). I have motors with fewer parts- but they operate on more complex principles. ➡️ Follow the link in my profile for information on where to get this motor and other amazing items featured here on @physicsfun #electromagnet #emf #electricmotor #physics #physicstoy #electriccurrent #science #worldssimplestmotor #windings #coils #electromagnetism #Bfield #ampereslaw #scienceisawesome #flux
Get one here:
From Educational Innovations: BUY NOW World's Simplest Motor
From Amazon: BUY NOW World's Simplest Motor
Magswitch: switchable permanent magnet- a twist of a knob turns on a magnetic field strong enough to lift this 5.2 kilogram (11 pound) chunk of railroad rail. Magnetic fields, when combined, can be either additive or subtractive. This Magswitch model, the Magjig 60, works by aligning and counter-aligning two strong neodymium dipole magnets within a field channeling ferromagnetic casing.➡️ Follow the link in my profile for info on where to buy this and other amazing items featured here on @physicsfun #magnetism #neodymium #flux #physics #physicstoy #magswitch #magjig #magjig60 #dipole #electromagnetism #ferromagnetic #science #scienceisawesome
The smallest Magswitch in this product line, yet it can lift 17 lbs! The Magjig 60:
From eBay: BUY NOW Magswitch 60
From Amazon: BUY NOW Magswitch 60
Here is a nice description of how such switchable permanent magnets work.
Infinity Mirror Coaster
Infinity Mirror Coaster: a partially reflective mirror in front, a fully reflective and slightly concave mirror in back, and glowing LEDs in-between produce this illusion of depth. This very inexpensive infinity tunnel is designed to be a coaster and you can choose to illuminate your favorite beverage from among 6 different lighting modes. ➡️ Follow the link in my profile for info on where to get these and many other amazing items featured here on @physicsfun #mirror #infinity #reflection #optics #physics #physicstoy #rave #infinitymirror #illusion #science #infinity #LED #partialreflection #scienceisawesome
Get a set here!
From Amazon: BUY NOW Infinity Tunnel Coaster Set
Sand Shaker at the Exploratorium
Sand Shaker @exploratorium: a thin layer of white sand is subjected to vibrations on top of a circular plate in this exhibit created by artist Charles Sowers at the Exploratorium in San Francisco. When granular substances like sand are rapidly shaken, they often take on the properties of fluids through a process called vibrofluidization. Strange non-Newtonian fluid behavior is seen in this sand when the frequency of vibration is adjusted to 16Hz (shown here in 240fps slow motion)- amazing complexity arising from simple and regular motion! 🌟 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 #vibration #frequency #granular #sand #vibrofluidized #nonnewtonianfluid #fuiddynamics #science #scienceisawesome
See more photos and video of this amazing exhibit at the artist's online gallery: Sand Shaker by Charles Sowers
Visit the Exploratorium
Magneto Top: Tesla's Insight
Magneto Top: a top that generates electricity and lights LEDs when spun. This top contains a strong dipole magnet which becomes the rotor in this alternator set up. A 1000 turn coil in the base can be adjusted so that the rapidly changing magnetic field of the top will induce an AC current in accordance with Faraday's law. The intensity of the light emitted from the LEDs in the base indicates how much current is being generated. Special thanks to Tobi Lee for sending me one of his Tessa's Insight tops. ➡ Follow the link in my profile for info on where to get this top and other amazing items featured here on @physicsfun #physics #magneto #alternator #spinningtops #desktoy #indiegogo #physicstoy #physicsfun #faraday #faradayslaw #tesla #magneticinduction #science #scienceisawesome
Available through Indiegogo here:
From Indiegogo: ORDER NOW Tesla's Insight
360° Animated Hologram Disk
360° Animated Spinning Hologram: this 3D running horse animation is a prototype of the vDisk toy which features a photopolymer type reflective hologram, which interestingly, is computer rendered and digitally produced. Unlike photographs, holograms are recordings of the interference pattern of light waves. This interference pattern can encode moving 3D images which are revealed by illumination by a point source of light and viewing from an appropriate angle. Many thanks to Tim Rowett of Grand Illusions Ltd. for this kind gift! ➡️ Follow the link in my profile for info on where to buy many of the amazing devices featured here on @physicsfun #physics #physicstoy #hologram #holographic #interference #optics #photopolymer #grandillusiosnltd #spinningtop #science #scienceisawesom
This vDisk is not yet on the market. This amazing hologram comes to my collection as a gift from Tim Rowett. Tim describes this new toy in this 2015 Grand Illusions video on YouTube.
See the next video and links for other amazing 360° holograms you can buy.
360° Photopolymer Hologram
Produced in the 90's these vintage items are available on eBay:360° Photopolymer Reflective Hologram: Batman from the Saga of the Dark Knight card series 1994. Incredible 3D image by Skybox International- rotate the disk to reveal an animated 360 degree view. Unlike photographs, holograms are recordings of the interference pattern of light waves. This interference pattern can encode moving 3D images which are revealed by illumination by a point source of light and viewing from an appropriate angle. Looks even more stunning in person! ➡️ Follow the link in my profile for info on where to buy this and many of the amazing devices featured here on @physicsfun #physics #physicstoy #hologram #holographic #interference #optics #photopolymer #photopolymerhologram #batman #DarkKnight #skybox #laser #science #scienceisawesome #DCcomics #throwback
From eBay: BUY NOW Skydisk Hologram
Tautochrone Curve: Happy Pi Day!
Tautochrone Curve: a special physics toy for Pi Day- a cycloid curve has the special property that the time it takes for an object to slide to the bottom of it under gravity is the same no matter how high it starts up the curve. Also, the time it takes is always equal to pi times the square root of the cycloid radius divided by g. Presented here are three instances of two spheres being released at the same time, and each time they reach the bottom and collide at the center - even if one sphere is released much lower than the other! This demonstration is the creation of David Haley of Pomona College. ➡️ Follow the link in my profile to learn more about this amazing curve and for info on where to get or how to make many of the amazing items featured here on @physicsfun #piday #pi #cycloid #circle #tautochrone #brachistochrone #math #mathtoy #mathstoy #physicstoy #kinetic #gravity #kineticart #science #scienceisawesome
Wikipedia has great articles on the Tautochrone curve:
Wikipedia: Tautocrhone Curve
and the cycloid curve on which it is based:
Wikipedia: Cycloid Curve
Learn how to make such a curve from Michael Stevens (VSauce) and Adam Savage in this fantastic video:
Youtube: The Brachistochrone Curve
Polage with Light Box
Polage with Light Box: art with polarized light using polarizing sheets and cellulose to create changing forms and colors. This piece was created by Austine Wood Comarow- the main developer of this art form- and this piece is signed "Swallowtail 1987 18/75". 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. Rotation of the filter in the light box allows the artist to incorporate more than one image and produce colorful metamorphosis. ➡️ 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
Austine has an on-line gallery of here 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: 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 in between, 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 #polarizingfilter #quantum #quantummechanics #photons #3polarizerparadox #polarizedlight #electromagnetic #electromagneticwaves #science #electromagnetism #scienceisawesome
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.
Bimetallic Jumping Disks
Bimetallic Jumping Disks: (wait for it!) slightly bowl shaped disks comprised of two thin fused sheets of different metals with different coefficients of thermal expansion. If the disks are warmed to body temperature they will stay buckled if pressed- when they cool, they spring back into their original form with a sharp snap. Watch with sound on. ➡️ Follow the link in my profile for info on where to buy these and other amazing items featured here on @physicsfun #waitforit #bimetal #thermonic #bimetallic #spring #jumpingdisk #physics #physicstoy #thermalexpansion #alloy #recoil #thermodynamics #science #scienceisawesome
Get a set here!
From Educational Innovations: BUY NOW Bimetallic Jumping Disks
Tumble Rings: the links in this chain are connected in a special way such that the top ring appears to tumble to the bottom- a compelling illusion! ➡️ Follow the link in my profile for info on where to get (or how to make) many of the amazing items featured here on @physicsfun #chain #math #mathtoy #mathstoy #physicstoy #knots #kinetic #kineticart #science #martingardner #scienceisawesome
I made my set from reading Martin Gardner's description in his famous mathematical recreations books- highly recommended:
From Amazon: BUY NOW Knots and Borromean Rings by Martin Gardner Describes the Tumble Rings
From Amazon: BUY NOW Books on recreational math and puzzles by Martin Gardner Lots of physics and math toys in these pages!
Here is a nice discussion of the tumble rings by Donald Simanek.
Magnetic Fluid Patterns at the Exploratorium
Magnetic Fluid Patterns @exploratorium: a dark ferromagnetic fluid, trapped in a small gap between two plates of glass, reacts under the influence of a powerful magnetic field in this exhibit at the Exploratorium in San Francisco. The intricate and beautiful fluid patterns result from surface tension between the liquids competing with the ferrofluid attempting to align with the field lines of a strong magnet as it is positioned at different distances underneath. 🌟 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 #ferrofluid #magnet #magneticfield #fuiddynamics #science #scienceisawesome
Visit the Exploratorium
Manufactured by CZFerro. Get one here:Golden Ferrofluid: colloidal ferromagnetic liquid in a specially prepared water-alcohol suspension. Curious behavior results from the interplay between magnetic force and surface tension. I'm still investigating the gold coloring and the specific makeup of the clear suspension fluid- both trade secrets it seems. The gold color appears to be a thin coating at the boundary between the ferrofluid and the suspension liquid. ➡️ Follow the link in my profile to find some display cells like this for sale. #ferrofluid #fluiddynamics #magnets #magneticfield #magnetism #colloidal #physics #physicstoy #science #surfacetension #neodymium #goldferrofluid #scienceisawesome #electromagnetism
From eBay: BUY NOW Ferrofluid Display with Magnet
Ferrofluid Magician: whimsical and wonderful physics toy from Taiwan. With a magnet in his hat (and a dove on his head) this little conjurer embodies our tag line here on @physicsfun: "physics describes the real magic of the universe"! In this interesting and novel design the vial includes some white sand which provides something for the magnetic fluid to interact with and keeps the interior glass clean. Many thanks to @mrscisciencefactory for sending me this physics magic 🎩 ➡️ Follow the link in my profile for more info about physics toys from Taiwan and how to buy the many amazing items featured here on @physicsfun #magnets #magneticfluid #ferrofluid #physics #physicstoy #physicsfun #kineticart #science #scienceisawesome #magneticfield #sciencetoy #magician #fluiddynamics
This science toy comes from Taiwan and is produced by the Mr. Sci Science Toy Factory
From Mr. Sci Science Toy Factory: Ferrofluid Magician
Slinky Treadmill at the Exploratorium
Slinky Treadmill @exploratorium: kinetic motion energy transfers to elastic potential energy and then back to kinetic energy in a cycling process as a slinky spring "walks" down an incline. Put the system on a treadmill, such as this one at the Exploratorium in San Francisco, and the walking behavior can be explored for many minutes. Note that after a while the slinky's walking becomes erratic. 🌟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 #slinky #slinkywalk #treadmill #energytransfer #kineticenergy #elastic #hookeslaw #momentum #science #scienceisawesome
Learn more about the physics of the slinky here: Exploratorium Science Snack
The slinky has been a popular toy since 1945! Read about the history and physics of the slinky, and the naval mechanical engineer that invented it on Wikipedia.
Visit the Exploratorium
Balance Pteranodon: weights in the forward wing tips create a center of mass below this pterosaur's beak- making a system that can rotate and oscillate about a stable equilibrium condition. No magnets used or needed for this physics! Usually this toy is found in the form of a bird (direct dinosaur descendent). Pterosaurs are not dinosaurs, but are the largest animals to ever fly, and powered flight has only evolved four times: bats, birds, pterosaurs, and insects- in reverse order. ➡️ Follow the link in my profile to get this toy pteranodon and other amazing items featured here on @physicsfun #equilibrium #centerofmass #physics #physicstoy #balance #balancebird #balancetoy #pteranodon #pterosaur #rotationalinertia #science #scienceisawesome #stableequilibrium
Get one here!
From Amazon: BUY NOW Balance Pteranodon
From eBay: BUY NOW Balancing Pteranodon
The Civilized Glass
The Civilized Glass: a most elegant version of the famous Pythagorean cup. Functions as a normal glass, but if the glass is filled above the top of the central column a siphoning effect is triggered and all the contents in the glass drains out the bottom through the hollow stem. With this cup moderation is key! This well made glass design by @mrscisciencefactory allows one to see the mechanism of the siphon tube usually hidden in ceramics versions. ➡ Follow the link in my profile for info on where to get this and other amazing items featured here in @physicsfun #physics #physicstoy #siphon #syphon #fluids #pascalsprinciple #communicatingvessels #pythagoreancup #fluiddynamics #wine #wineglass #science #scienceisawesome
Another wonderful science toy from Taiwan! Produced by the Mr. Sci Science Toy Factory
From Mr. Sci Science Toy Factory: Buy Now Civilized Glass
Learn more about the Pythagorean Cup on Wikipedia
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