kinetic Art

Polage

Click on any image to see a short video of more polage in action: 
From Austine Studios: Polarized Light Art 

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Click this link for more physics fun with polarization. 

Here is a very nice discussion about polarization that pertains to Polage: Experiments With Polarized Light by Donald E. Simanek 

Polage: art with polarized light using polarizing sheets and cellulose to create changing forms and colors. Rotation of the filter allows the artist to incorporate more than one image and produce colorful metamorphosis. This piece was created by Austine Wood Comarow- the main developer of this art form- and this piece is signed "Young Rose 1987 28/50". 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. 

Dual Axis Sand Pendulum

Available in many styles and colors: 
From Amazon: BUY NOW Sand Pendulum 
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Dual Axis Sand Pendulum: the kinetic energy trades back and forth between swinging toward the support arm and then swinging perpendicular to that path tracing Lissajous figures in the sand. The sand slowly dissipates the energy and the traced figures get smaller so the next one fits inside the last. Coupled oscillations like this can occur when multiple modes of motion (degrees of freedom) are available to the system.


Time's Up

Similar timers available from these sources: 
From Amazon: BUY NOW Inverted Timer 

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Time's Up: inverse of the sandglass- tiny plastic beads are less dense than the water and thus ascend to the top of the container under the influence of a buoyant force in accordance with Archimedes' principle. This timer takes almost exactly 6 minutes to complete shown here at normal speed for the first half of this video, and the second half is condensed to 24 seconds in time-lapse. 

Buda Ball

Only made by the Flyte team:

From Art of Play: Buda Ball

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Buda Ball: my favorite powered levitation device- and the only system I know of that will suspend in a horizontal direction as seen in this video. A spherical magnet is pinned 1.5 centimeters from the surface of its hardwood base. Within the base is an innovative control system with adjustable electromagnet coils in a feedback loop with Hall effect sensors (I assume) which allow for fine tuning of a magnetic field to precisely balance the pull of gravity- even when the base is in a vertical orientation! 

Jack in the Box Puzzle

Order this amazing puzzle here:

From Craighill & Art of Play: Order Now: Jack in the Box

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Jack in the Box Puzzle: eight solid aluminum pieces form a textured cube when carefully stacked- yet the same eight pieces can also be packed around a six pronged “jack” to form a second smooth silver cube that is barely larger that the first. Similar to the 2D Matsuyama’s paradox puzzle, a small square is centered on each face of the cube in the second solution. Some stages of assembly shown here under rotation to emphasize the beautiful symmetries in the design and avoid spoilers to the challenge. Created by Rod Bogart and engineered into existence by the talented folks at @craighillcompany, and I send a hearty thank you to my friends at @artofplay for sending me this unique and special puzzle. 


Tesla's Egg of Columbus Replica

Get an amazing reproduction here:
From engineDIY: BUY NOW: Tesla's Egg of Columbus

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Get an aluminum phiTOP "egg" here: BUY NOW phiTOP 

Tesla’s Egg of Columbus Replica: an egg of brass mysteriously spins and stands upright in this museum quality replica of Tesla’s famous demonstration from the 1893 World’s Fair in Chicago that first showcased the principles behind wireless power transfer and his AC induction motor. The base has no moving parts- instead special copper windings (very similar to Tesla’s original design) form four electromagnet coils on a circular steel core, and a special circuit supplies each with AC currents in such a way that a rotating magnetic field is created. This rotating magnetic field from the coils under the concave glass induces electric eddy currents to flow in the metallic brass egg. These currents within the conducting metal of the egg then create their own magnetic field, which by Lenz’s law oppose the initial fields underneath and pushes the egg to spin. Finally, the oblong egg stands up vertically (when spun with sufficient rotational velocity) due to physics similar to that of the tippe-top. Flipping the switch reverses the rotation direction induced by the coils.