Get one here:
From Educational Innovations: BUY NOW Euler's Disk and Accessories
From Amazon: BUY NOW Euler's Disk
Wikipedia has an excellent introduction to the physics of Euler's Disk
Eulers Disk: (best with sound on) this toy exhibits the motion of a “sprolling” coin, a motion that combines spinning and rolling. Designed with a large mass and very smooth edge, this device takes close to 3 minutes to come to rest- and amazingly, the contact point between the disk and the mirror can reach a speed of more that 200 mph! This video catches the first and last parts of this 2 minute and 42 second run, with two cuts to 240fps slow motion to show the curious motion. Watch the end with the sound on!
Art by Philippe Bouveret available here:
From the artist: BUY NOW philippebouveret.com
Water Drop Pulse Kinetic Sculpture: “Heart In A Bottle” is a kinetic art sculpture by Philippe Bouveret that utilizes the amazingly strong surface tension and adhesive properties of water. Two halves of a heart are attached to a wire spring which is periodically pulled together in a zipper like fashion by a single drop of water (as seen in 240 flp slow motion). The engineered system in the top bulb emits a water drop that adheres to the two wires, and as it falls surface tension pulls and connects the spring wires, which stay stuck together until gravity pulls down and thins the water coating enough such that the spring force can overcome the water’s adhesion. The halves of the heart then undergo vibrations that damp out until another drop forms in a process that repeats a few times a minute.
Click here to visit this amazing Etsy shop Element83
Get a magnetic levitation sculpture here:
From Etsy: BUY NOW Diamagnetic Levitation Sculptures
Eclipse: A diamagnetic levitation sculpture by Element83. Cast from diamagnetic Bismuth, a golden spherical neodymium magnet levitates trapped in a tunnel within the metal. Diamagnetic substances only have magnetic fields of their own when placed in an external magnetic field from another source- here the sphere magnet supplies the field. Diamagnetic fields are pretty weak though so a powerful cube neodymium magnet sits above the tunnel and is adjusted to help lift the sphere magnet against gravity. Trapped in equilibrium by these fields, any other magnet brought near will change the balance. ?Another amazing creation by Ernie McElhannon.
Get this precision machined and balanced desk pendulum here:
From Etsy: BUY NOW Double Chaotic Pendulum
Mini Double Pendulum: the intricate dance of chaotic motion from a simple assembly of two physical pendulums (one attached to the end of the other) with the energy of the system moving frenetically back and forth between the potential energy of gravity to the kinetic energy of motion. Chaotic motion (shown here in 240 fps slow motion) is characterized by extreme sensitivity to initial starting conditions, tiny differences in how the system is released leads to dramatically different outcomes each time. This well made precision bearing double pendulum is made by Doug Cvelbar.
Now on KickStarter!
From KickStarter: Pledge NOW: The HoverPen
The HoverPen: versions 1.0 (vertical) and 2.0 (inclined 23.5°) sleek writing pens trapped against gravity by a magnetic fields via precision engineered placement of neodymium magnets in their bases.
Get this kit here (comes complete as shown in my video):
From engineDIY: BUY NOW: Magnetic Levitation Module
The featured sculture is by Bathsheba Grossman, affordable and beautiful math art available here:
From Etsy: BUY NOW: Soliton Sculpture
Electromagnetic Levitation Module: this engineered control system uses adjustable electromagnets (four copper coils) and and two Hall effect magnetic field sensors (held firm embedded in white silicone) to levitate an 5cm diameter neodymium magnet platform about 3 cm in mid-air. A feedback loop informed by the Hall effect sensors allows fine tuning of the magnetic field to exactly balance the pull of gravity, and is powered by a standard USB connection. The platform also rotates, perfect for showcasing one of my metal 3D printed mathematical sculptures by Bathsheba Grossman.
Get this 3D print here (your choice of colors):
From Etsy: BUY NOW: Satifying Hexagons
Satisfying Hexagons: this delightful kinetic art manipulation toy features 19 nested hexagons within a hexagonal frame. Embedded magnets allows one to move the central hexagon from behind creating interesting visual effects. A 3D print created by @i.am.the.lazy.engineer- indeed oddly satisfying!
This device came in my Curiosity Box subscrition. A great way to start collecting your own physics toys (and other brain food):
From the Vsauce team: BUY NOW: The Curiosity Box
Get similar (two shuttle) devices here:
From Etsy: BUY NOW
Trammel of Archimedes
3-Shuttle Trammel of Archimedes: as the shuttles take turns completing their straight line journeys, the end of the crank arm traces an ellipse. This precision 3-shuttle version by the VSauce team came in my @thecuriositybox - made with high quality molded plastic parts that produce very smooth movement- a wonderful addition to my collection! Sometimes sold as a “do nothing machine” or “nothing grinder”, far from doing nothing this simple and crucially important mechanism demonstrates how rotational motion can be converted into translational oscillatory motion- such as how a piston can drive an engine’s crankshaft.
The DIY version can be assemebled with these parts. Steel wire of guage 10 or 12 should work well.
From Amazon: BUY NOW: Quilting Hoop, Neodyumium Magnet, Steel Wire
Magnetic Hoops Suspension Sculpture: Steel circles are suspended by a magnet (black sphere) and held down to the base by a thin thread. The tops of the steel hoops, being ferromagnetic, become a north pole in the presence of the south pole end of the black magnet, so they are attracted to the black magnet, but repel each other. Made by Rathcon Inc. in 1970. Swipe to see my DIY version made from a quilting hoop, neodymium magnets, and some bailing wire.
ORDER HERE : Shashibo Geometric Art
Shashibo Geometric Art: dissect a cube into 12 equal irregular tetrahedra, connect these pieces symmetrically with hinges, and add 36 magnets to create a device with more that 70 geometrically interesting and aesthetic configurations.
Galton Board version available here:
From Amazon: BUY NOW
The Random Walker: second model of two Galton Boards designed and produced by IFA.com- this version is made to demonstrate probability in investment returns of a global stock market portfolio relating to risk capacity. Slow motion reveals the erratic path of each steel ball (second half of video). The red graph shows the distribution of 592 monthly returns (mean =1%, SD=5%) representing data from 50 years of an IFA Index fund- here the random “walk” of 3000 steel balls falling through 12 levels of branching paths always produce a close match, and both distributions tend toward the famous bell curve distribution. A wonderfully designed modern version of the Galton Box invented by Sir Francis Galton(1894) to demonstrate the Central Limit Theorem - showing how random processes gather around the mean.
Vintage (1970s) Kalliroscopes are sometimes available here:
From eBay: Search NOW Kalliroscopes
Click this link for the best Kalliroscope currently in production and available.
Kalliroscope with Heating Element Stand: visualizing the invisible- convection currents. This wonderful vintage device was invented and produced by artist Paul Matisse in the 1970s, where 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. Here the stand option (that was sold separately) has a resistive element in contact with the back of the kalliroscope which generates heat at about body temperature to establish these convection currents.
My freind Tim Rowett over at Grand Illusions Ltd. has this item in stock:
From Grand Illusions Ltd: BUY NOW: Love/Hate Micro Mirror Art
Also availble in South Korea: BUY NOW: Love/Hate Micro Mirror Art
Micro Mirror Interactive Art: mirrors as pixels- the "love/hate" memo pad by Luycho. The displayed message is the product of 1280 tiny square mirrors (dimensions 2.0 x 2.5 mm), where each mirror is angled to reflect a specific part of the memo pad below. Alter the distribution of colors on the pad and the message on pixel array can change between the two options.