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Sand Paperweight Toy

Available from these fine sources: 

From Amazon: BUY NOW Sand Globe Toys 

From Amazon: BUY NOW Sand Globe Toys: Winter Theme

A common version of this toy is for football fans: 
From eBay: BUY NOW Sand Football Paperweight Toy 

Wikipedia has a nice introduction to the amazing world of granular material science 

Sand Paperweight Toy: physics of granular materials- matter with unique properties between those of solids and liquids- as demonstrated with this simple toy. Granular materials, such as the sand in this toy, flow but also stack with a characteristic “angle of repose” as can be seen here as pyramid like ridges that form over the images of penguins. 

The Heritage Periodic Table Display

Periodic Table with 83 element samples: 
From Etsy store ProtoshopLLC : BUY NOW 
Heritage Periodic Table

Please note: there are fradulent versions of this with only pictures embedded in the acyrlic being sold on facebook. The link above is the only place to get the actual version. 

The Heritage Periodic Table Display: a comprehensive collection of the chemical elements that can fit in the hand. Embedded in acrylic are actual samples of 83 of the 118 elements- including pure bubbles of the gaseous elements- represented by 75 high purity samples and 7 compounds. 2019 marks the 150th anniversary of the world changing periodic system of Dmitri Mendeleev (published in 1869). This table and collection is the creative work of Tim and Cory Marriott of Engineered Labs Protoshop LLC 

Illuminature RGB Book

Get Iluminature here, along with other RGB books:

From Amazon: BUY NOW: Illuminature Book

From eBay: BUY NOW: Illuminature Book

Illuminature Book: three books in one- the supplied absorptive gel filters transmit only a narrow range of frequencies (red, green, and blue here) and the inks on the page that do not match with the color range of each gel are revealed as dark images. This book explores 10 ecosystems from around the planet, and on every page red reveals animals seen during the day, blue shows nocturnal creatures, and green unveils the diversity of plant life. The art design is part of the RGB project by the CARNOVSKY design team (Silvia Quintanilla and Francesco Rugi) with informative biology written by Rachel Williams.


Shashibo Geometric Art

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- a few are shown here. With practice the various transitions can flow very smoothly- this video are some of my initial explorations with this unique puzzle. 

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The Swinging Sticks

Special offer for @physicsfun followers: 
free worldwide shipping 
The code given below will provide free worldwide shipping on any purchases of The Swinging Sticks Desktop Toy version from their website: 

From GeelongShop.com: BUY NOW The Swinging Sticks
Use this Coupon code: FUNSHIPPING 

The Swinging Sticks Desktop Toy: a personal favorite, this kinetic art device is the ultimate physics toy, and was featured in the movie Iron Man II (sitting on the desk of Pepper Potts). The physics magic of this device displays the essence of chaotic motion with coupled pendulums- the placement of the rods' axes of rotation are engineered to exhibit the widest range of interesting motion. Four AA batteries and a simple kicker circuit in the base gives a push to a magnet in the end of the large rod keeping the system in motion for over a year! 


The ΦTop

Professor Brecher has a limited supply of these "golden" (brass) versions of this top available on Etsy 
From Etsy: BUY NOW PhiTOP in Brass 

The ΦTop - Golden Version: spinning things have surprising physics! This unique top is made of solid brass in the shape of a prolate elIipsoid- and the name of the top is derived from the following design requirement: the ratio of the semi minor (short) axis to the semi major (long) axis is made equal to the mathematical constant the golden ratio φ (phi). Invented by astrophysicist Kenneth Brecher, this top stands up vertically (when spun with sufficient rotational velocity) due to physics similar to that of the tippe-top. The concave mirror keeps the top from wandering off and the glass surface has minimal friction allowing the top to spin for a long time- this video shows various stages of 8 minutes of total spin time.


Well Balanced Cabernet

Similar wine racks available here: 
From Amazon: BUY NOW 
Balance Wine Rack 

Many well crafted versions avaulable here:
From Etsy: BUY NOW 
Wine Bottle Balance

Acrylic Wine Bottle Balance

Well Balanced Cabernet: a carefully engineered acrylic version of this famous demonstration- the center of mass of the rack/wine bottle system is directly over the base providing unstable equilibrium for this balancing act. Suspended here is Hypothesis by Roots Run Deep, an excellent Napa cabernet sauvignon. 

Holiday Pyramid

Many types and themes available: 
From Amazon: BUY NOW Christmas Pyramids 
From eBay: BUY NOW Christmas Pyramid

Holiday Pyramid: a simple heat engine- rotational motion resulting from the convection of hot air due to the candle flames of two tea lights. These holiday decorations come from a German Christmas tradition, Weihnachtspyramide, that dates back more than 200 years! Energy transfer: chemical bonds to heat to kinetic energy of the rising air to rotational kinetic energy of the turbine and reindeer. 

Hyperboloid Spinner

Available here: 
From Amazon: BUY NOW 
Hyperboliod Spinner: The HypnoGizmo 

From eBay: BUY NOW 
Hyperboloid Spinner: HypnoGizmo 

Hyperboloid Spinner: the HypnoGizmo toy consists of a set of slanted straight nylon lines arranged to form the outline of a hyperboliod- the quadratic surface related to the revolution of hyperbola around its axis of symmetry. As the device rotates the beads slide along in succession on one of the straight paths leading to the complex visual display. So much fun math in this toy!


Pencil Hyperboloid

Choose your color and get one here: 
From Etsy: BUY NOW 
Hyperboloid Pencil Holder 


don't forget a set of pencils: 
From Amazon: BUY NOW 
Colored Pencil Sets 


Better yet- get some thermochromic color changing pencils! 
From Educational Innovations: BUY NOW 
Heat-Sensitive Pencils 

Pencil Hyperboloid: a perfect gift for any math teacher- the precisely oriented holes in this base direct 16 pencils to reveal a hyperboloid, the 3D surface traced by revolving a diagonal(skew) line, the outline of which is the conic section of the hyperbola. A doubly ruled surface for any desktop!

The Galton Board

Available here: 
From Amazon: BUY NOW 
Galton Board 

The Galton Board: 3000 steel balls fall through 12 levels of branching paths and always end up matching a bell curve distribution. Each ball has a 50/50 chance of following each branch such that the balls are distributed at the bottom by the mathematical binomial distribution. One of my favorite finds of 2018! An elegantly 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. In addition the number of balls in each bin can be predicted by Pascal's triangle (printed on the face over the pegs).

Slow Dance

This finally crated kinetic art piece avaiable here: 

From Wonder Machines: BUY NOW: Slow Dance

From Art of Play: BUY NOW: Slow Dance

Slow Dance: a kinetic sculpture via induced vibration and high speed strobe lighting in which objects exhibit subtle and beautiful motion when mounted within this special frame. I love how the electromagnet, with its beautiful copper windings, is prominently featured at the bottom of the frame. Electronics within the frame send AC currents to the electromagnet which then pushes and pulls magnets on each side. These magnets are affixed to leaf springs to which feathers, flowers, and other objects are attached with elastic bands. The arrangement is then illuminated by LEDs set to strobe at just the right frequency to produce the slow dance illusion.


Iron Filing Field Detector

This device and similar ones available from these fine sources: 

From Amazon: BUY NOW Magnetic Field Demonstrator Kits 
From eBay: BUY NOW Magnetic Field Demonstrator Kits 

Iron Filing Field Detector: visualizing the invisible- the magnetic field lines around a dipole bar magnet. In the presence of a magnetic field, ferromagnetic materials (such as iron) temporarily become magnets. Here the iron filings become dipole magnets and link up and align like tiny compass needles to follow and reveal the magnetic field lines associated with the permanent magnet underneath. Viscous silicone oil temporarily keeps the iron particles suspended yet allows for rotation and repositioning under the influence of the magnetic field.

Feel Flux Loop

Available as a set, or individually (all come with the super powerful sphere magnet) here:

From feelflux.com: BUY NOW: Copper + Aluminum Feel Flux

Feel Flux Loop: original (copper) and the "Skill Flux" version (aluminum)- toys that use Lenz's Law to manipulate a very strong neodymium magnet. The magnet falls a bit faster through the aluminum even though the walls are thicker- Al is only about 60% as conductive as Cu- so it takes more material to induce the needed magnetic field using aluminum. Interestingly the Al tube is about half the mass of the Cu one, even though it is larger in volume.

Nixie Tube Clock

The Nixie Tube Clock in the video is of amazing craftsmanship- real hardwood with brass accents and solid construction. Get one from this excellent shop: 
From Etsy: BUY NOW 
Nixie Tube Clocks 

Nixie Tube Clock: long before there were 7 segment LED displays there was the Nixie- cold cathode tubes with a wire mesh and 10 cathodes shaped in the form of numerals 0-9 that illuminate through neon glow discharge. The “Numeric Indicator eXperimental 1” or NIX 1 was introduced in 1955 by Burroughs Corporation and manufactured until the 1990s. This clock uses modern electronics to power Russian versions called the ИH-19A where the numbers are stacked so the front symbols obscure each lighted cathode minimally: from back to front 1320984756.