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Polarized Light Cell Kaleidoscope

Click here for affordable, precision made scopes with angled mirrors: Kaleidoscope Symmetries Explored

Similar Kaleidoscopes available here:

From Amazon: BUY NOW Fluid Flow Kaleidoscope 
From eBay: Fluid Flow Kaleidoscope

See more kaleidoscopes in my collection: Kaleidoscopes

Polarized Light Cell Kaleidoscope: the amazing colors you see from the object cell of this 3 mirror kaleidoscope are generated by manipulating the polarization of light- the object in the clear wand is a strip of clear cellophane in oil which has the property of optical rotation. These property allows for an incredible range of color formation when placed between two linear polarization filters (swipe for demonstration). A creation of kaleidoscope artist Ron Kuhns.

Lampe Kino: Polarizing Art

The amazing art of Anne-Lise King available here:

From Etsy: BUY NOW: Kino Lamp Polarizing Art Lights

Lampe Kino: Art from from the manipulation of polarized light. These videos showcase two designs by artist Anne-Lise King, and each design can itself be displayed in numerous ways depending on the orientation of the polarizing filter and the layering of plastic imaging sheets. Light has an orientation, denoted as polarization, and a polarizing filter can be used to block certain orientations. The colors produced here come from how the molecular structure of plastics can rotate the polarization of light that passes through- light corresponding to yellows and greens gets rotated in plastic in proportion to their frequency, red and blue frequencies only a small amount. The images here are constructed with different layers of plastic to rotate the light by differing amounts. Polarizing filters are then added to allow only certain frequencies (colors) of light through.


Impossible Frame in Bottle

Each construced by hand, each a work of art-  get a personalized bottle here:

From The Bottleologist: BUY NOW: Impossible Bottle with Frame

Impossible Frame in Bottle: the newest seemingly impossible object in my collection from craftsman/artist Grant Wicks AKA the Bottleologist. A framed photo complete with all hardware somehow assembled within a Fannys Bay Whisky bottle- a uniquely square bottle. More- the photo is a recursive Droste Effect image of the bottle itself. The puzzle aspect is to consider how the bottle was produced (I personally have some theories- but I do not know the secrets of this artist). I can tell you with high certainty that the bottle was never cut or altered in anyway, and it was not somehow formed around the frame. 

Fruit Themed Tippe-Top

This quality wood toy available here: 
BUY NOW Hape Spinning Top 

More flip tops here:
STEMcell Science Shop: BUY NOW Tippe-Tops 

Fruit Themed Tippe-Top: spinning things often have surprising physics! This colorful top by Hape not only flips over when spun, it also exhibits interesting behavior due to instabilities as it slows down- serious break dance moves! Friction with the mirror provides a torque that acts on the existing angular momentum of the top to flip it over.

 

Sprial Oil Drop Timer

Get one here:

From Amazon: BUY NOW: Oil Drop Timers

Spiral Oil Drop Timer: when this drop timer achieves its steady state the drops form with amazing regularity in terms of both the size of the drop and the spacing between drops. The physics of immiscible liquids, surface tension, viscosity, and gravity combine to produce these interesting patterns. 

 


Homopolar Motor

Fairly simple to make- here are the inexpensive supplies needed to make a few of these motors. 
AA batteries have a diameter of 14.5 mm, so a bottom magnet with a diameter of 15 mm is just right: 
From eBay: BUY NOW Neodymium Disk Magnet 

Wire that looks and works well is just 10 gauge ground wire. Inexpensive and available at any local hardware store-- or order a small quantity here: 
From eBay: BUY NOW 10 gauge Copper Wire 

Wikipedia has some good details on the physics of homopolar motors 

Homopolar Motor: a minimalist electric motor- battery, wire, and magnet. This type of motor does not need a commutator- the polarity of the electromagnetic coil does not need to reverse. The challenge with this design is balancing the coil to center on the battery as it rotates. A favorite DIY physics toy!

Uphill Roller

This set available here:

From Amazon: BUY NOW: Uphill Roller Double Cone

Uphill Roller: a double cone (like two funnels connect by their tops) will roll up a set of inclined rails. Although the bi-cone rolls toward the higher end, its center of mass descends due to the geometry of the rails. This curious construction was first published in 1694 by the noted surveyor William Leybourn to promote “recreation of diverse kinds” towards the “sublime sciences”. Physics fun from three centuries ago!

Magnetic Poles & Fields

Get a set here: 
From Amazon: BUY NOW Magnetic Field Viewer set 

Viewing Magnetic Poles: visualizing the invisible- tiny iron filings suspended in viscous oil gracefully chain up to reveal the presence of magnetic field lines. Can you determine how the magnetic polls are configured by the structure of the field lines? Here three configurations, initially hidden behind white foam board, create the beautiful mappings of the fields. 


Electromagnetic Levitation Module 

Get this simple module here:

From EngineDIY: BUY NOW: Mag Lev Kit

Electromagnetic Levitation Module: this bare bones engineered control system uses an adjustable electromagnet (the copper coil) and a Hall effect magnetic field sensor (embedded in the center of the the coil) to levitate a neodymium magnet and keep it from falling. A feedback loop informed by the Hall effect sensors allows fine tuning of the magnetic field to exactly balance the pull of gravity, all powered by a 12 power supply. Once trapped the magnet can also rotate, creating a nice way to display a small piece of kinetic illusion art hanging from a chain. A no frills design that shows the fairly simple circuit and components of such a levitation feedback system. 

Anamorphic Projection Puzzle

This vintage puzzle was made in Germany about 30 years ago by "Dr. F Hein Spiele", and unfortunately there does not seem to be anything like it currently on the market. This is a table top version of anamorphic projection. Here is an example of large scale versions: 
Anamorphic Projections of Felice Varini via Colossal 

See similar art in my collections: anamorphic projections 

Anamorphic Projection Puzzle: multiple layers of images, fragments of letters and colors, assemble into an image of a smiling sun if viewed from a very specific view point. Thanks to Mark Setteducati for sending me this vintage item. 


Vintage VFD Tube Clock

Fully assembeld high quality clocks available here:

From Etsy: BUY NOW: VFD Tube Clock

Vintage VFD Tube Clock: before seven segment LEDs there were Vacuum Fluorescent Display tubes in which zinc oxide coatings emit green light when bombarded by electrons under high vacuum. A phosphor coated anode segment only illuminates if it and the grid (seen in close up) are both energized at positive potential. This clock features an eight digit IV-18 display tube manufactured in the 1990s and cofigured to power up via a USB cable - old tech meets modern electronics in an elegant acrylic case. 

Self Propelled Homopolar Motor

Here are disk magnets I used for the "wheels": 
From eBay: BUY NOW Neodymium Disk Magnets 
From eBay: BUY NOW Neodymium Disk Magnet 

Wire that looks and works well is just 10 gauge ground wire. Inexpensive and available at any local hardware store-- or order a small quantity here: 
From eBay: BUY NOW 10 gauge Copper Wire 

Wikipedia has some good details on the physics of homopolar motors 

Self Propelled Homopolar Motor: cylindrical neodymium magnets supply the static magnetic field for this motor and become the wheels of a very simple vehicle with an AA battery as the energy source. As soon as both ends of the copper wire make contact, an electric current will flow which in turn induces a magnetic field around the wire. This induced field around the copper wire will then interact with the neodymium magnets on each end causing them to spin- a wonderful example of a motor with minimal components.


Kostick Stars

Two versions available here: 
From Art of Play: BUY NOW 
Kostick's Stars 


Here is the detail of the connections of the 6 star from the patent document: 
 
Learn more about John Kostick here: John and Jane Kostick handcrafted mathematical constructions

Kostick Stars: The geometric forms of these kinetic sculptures snap into place due only to the balanced tension forces between thear slightly bent bronze wires. The large star is comprised of six struts, each made of 5 wires, which are made to intersect and weave though each other with beautiful geometric regularity. Similarly the small star has 4 struts each made of 3 wires. The ends of the 6 struts of the large star become the 12 vertices of an icosahedron, and the ends of the 4 struts of the small star point to the 8 corners of a cube. Both stars can be collapsed along many of the symmetry axes. Invented and patented in 1970, these stars are still produced and sold by artist and designer John Kostick. 

Lightning 2000 Plasma Lamp

This vintage device is often available on eBay: 
From eBay: BUY NOW 
Vintage Lightning Lamp 


A similar device is available here: 
From Amazon: BUY NOW 
Blue Lightning Lamp

Lightning 2000 Plasma Lamp: low pressure noble gasses glow due to discharge from high voltage. A small high frequency coil at center creates the high voltage potential between the center electrode dome and the outer glass dome which is coated with a thin transparent film of metal. Current flow through the thin gas produces the glowing zigzagged path like that of lightning but more rounded. Shown here in 480 fps slow motion. 

Spinning Liquid Paperweight

Many versions available here 
From Amazon: BUY NOW Liquid Wave Paperweight Toy 

Spinning Liquid Paperweight: two immiscible liquids (three if you count the air bubble) are sorted under gravity by density with the densest on the bottom and the lightest on top. If the container is rotated the boundary between the layers forms a parabola due to the added influence of centripetal acceleration. As seen here in 240 fps slow motion, symmetric waves travel and reflect along the curved surface for the first few rotations until damped out via viscosity and friction. The plastic fish have a density between that of the two liquids so they stay at the boundary layer.