Magnetic Cube
Many colors to choose from:
From MagneticCube.com: BUY NOW Magnetic Dice Cube
See also the original indestructibles post: Magnetic Acrylic Rubik's Cube
Magnetic Cube: a twisty Rubik’s Cube puzzle made from 27 dice and 108 neodymium magnets. This cube includes the scrambled states and solutions of the original 3x3 Rubik’s Cube but is held together only by magnets! The magnets, in this special configuration, lock the dice together with a satisfying click upon rotation. This beautiful cube was produced by Owen Lillywhite of magneticcube.com and is based on a gfixler design posted on instructables.
Magneview Flim
Get some magnetic viewing film here:
From Educational Innovations: BUY NOW Magnetic Viewing Film
Magneview Flim: making the invisible visible and revealing the hidden physics of our everyday world. Microscopic cavities in this green film are filled with oil and tiny flakes of Nickel metal- like compass needles, the flakes align with the magnetic fields revealing the complexity of the north and south pole domains of these magnets. Two of the disk magnets have multiple north and south poles and look like gears with teeth- these are rotors from small motors.
The HoverPen Collection
The HoverPen Collection-- sleek writing pens trapped against gravity:
From Amazon: BUY NOW: The HoverPen 1.0, 2.0, and 3.0
The HoverPen: version 1.0 (vertical), version 2.0 (inclined 23.5°), and version 3.0 (inclined 60°!) sleek and elegant writing pens trapped against gravity by magnetic fields via precision engineered placement of neodymium magnets in their bases.
HoverPen Interstellar Edition
Get this pen here:
From Amazon: BUY NOW: HoverPen Interstellar
Note: this site contains affiliate links for which I may be compensated
The HoverPen (Interstellar Edition): A sleek writing pen trapped against gravity- at an elegant angle of 23 degrees - by a magnetic field via precision engineered placement of neodymium magnets in the base. Produced by the Novium line of awesome physics based products- and a financial supporter of science education including a personal favorite YouTube channel: PBS SpaceTime.
Cubendi Dissected Cube Puzzle
Thie new dissection puzzle is available here:
From Amazon: BUY NOW: Cubendi Cube
Get the sister cube puzzle here:
From Amazon: BUY NOW: Shashibo Cube
From Art of Play: BUY NOW : Shashibo Geometric Art
Note: this site contains affiliate links for which I may be compensated
Cubendi Puzzle: Dissect a cube into 4 equal irregular tetrahedra + 8 equal irregular triangular pyramids, connect these 12 pieces symmetrically with hinges and add 48 magnets to create the Cubendi cube. This assembly can make a number of surprising symmetrical forms including this rectangular prism with a square hole. More math fun with this second hinged dissection cube puzzle from the makers of the Shashibo Cube.
Levitating Sphere Lamp
Get this fun lamp here:
From Amazon: BUY NOW: Levitation Lamp
Note: this site contains affiliate links for which I may be compensated
Levitation Lamp: tapping the floating spherical magnet turns this LED lamp off and on in this interesting design. The magnet floats a couple centimeters from the surface of the base when plugged in, and feels springy to the touch. Within the base is a control system with adjustable electromagnet coils in a feedback loop with Hall effect sensors which allow for fine tuning of a magnetic field to precisely balance the pull of gravity.
Mag Flip Inverted Pendulum Fidget
Available from this fine vendor:
From Etsy: BUY NOW: Mag Flip Desk Toy
Note: this site contains affiliate links for which I may be compensated
Mag Flip Inverted Pendulum Fidget: three embedded neodymium magnets provide tactile repulsive forces in this simple but intriguing system. Pressing down on one side increases the magnetic potential energy that will then send the pendulum into frantic motion until the kinetic energy is damped out after a series of oscillations. This fidget can also be used as a random coin flip with respect to which side it will land.
Precision Machined Haptic Fidget
Get this device here:
From Etsy: BUY NOW: Precision Fidget Devices
Note: this site contains affiliate links for which I may be compensated
Precision Machined Haptic Fidget: four identical stainless steel components precision manufactured to 15µm tolerances via wire EDM (electrical discharge machined) and embedded with magnets to produce a stepped locking mechanism for a haptic sensory experience. The rainbow finish is due to a very thin layer of oxidized titanium produced by a process called physical vapor deposition (PVD) where a molecule thin coating is created under vacuum. So much interesting physics in the many production methods used to make this everyday carry fidget.
Thermomotor Curie Point Engine
Available in limited supplies here:
From Etsy: BUY NOW: Thermomotor Candle Engine
Note: this site contains affiliate links for which I may be compensated
Thermomotor Carousel: this decorative and dynamic centerpiece is actually a Curie point heat engine! Two tea light candles continually chase two magnets around a magnetic ring in this truly unique design by @violet__revolution. When the portion of the magnetic ring over the flame heats up to a particular temperature (the Curie point) its magnetic field is temporarily lost until it cools, so the magnet near the candle is now pulled toward a cooler portion of the ring- which then heats up and the process continuously repeats creating the steady rotation. Swipe to see the full design (complete with a laser cut forest mantle) in operation. Many thanks to artist and inventor Darragh Hewat for this fantastic addition to my collection.
Horseshoe Magnet with Keeper
Similar and affordable magnets available here:
From Amazon: BUY NOW: Horseshoe Magnet with Keeper
Get some viewing film here:
From Amazon: BUY NOW: Color Magnetic Viewing Film
Note: this site contains affiliate links for which I may be compensated
Horseshoe Magnet with Keeper: magnetic field lines connect North to South poles from one side of the U shaped magnet, through the air, to the other- and magnetic viewing film reveals the strong fields of this vintage magnet. However, when a bar of soft iron is attached, the magnetic field lines prefer to pass through the bar, and the field is then concentrated in the bar and significantly reduced in the surrounding air- basically shutting off the field around the magnet as seen by the viewing film. Such a bar is called a “keeper” which serves to contain the field and also persevere the strength of the magnet when not in use.
Magnetic Tractor
Avilable here:
From Grand Illusions LTD: BUY NOW: Magentic Tractor Demo
Note: this site contains affiliate links for which I may be compensated
Magnetic Tractor: special configuration of permanent magnetic poles captures a dipole magnet without contact. Only works in 2D but cool nonetheless!
Magnetic Fidget Physics
I got this fun device here:
From Etsy: BUY NOW: Haptic Magnet Toys
Note: this site contains affiliate links for which I may be compensated
Magnetic Fidget Physics: iron rich ball bearings temporarily become dipole magnets and repel each other- and when manipulated they keep their distance. In this design the ball bearings snap into place above one of the seven neodymium magnets embedded within the 3D printed disk.
Ceramic Magnet Symmetries
Get a set here:
From Amazon: BUY NOW: Ceramic Magnet Kit (6)
From Amazon: BUY NOW: Ceramic Magnet Kit (18)
Note: this site contains affiliate links for which I may be compensated
Ceramic Magnet Symmetries: this set of spherical dipole magnets allows for exploration of stacking and linking symmetries, including a hexagon in 2D and a tetrahedron in 3D. An oddly satisfying physics fidget!