AMAZING Physics Toys That You Will LOVE!

Hi Everyone :)
Welcome back!

I get asked often: "Where did you get all this stuff?" My goal is to share the real magic of science and physics- and to this end I will update here (and in my store) suggestions on where to get some of these toys, kinetic art pieces, and scientific curiosities for yourself.

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This video contains :

👉 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. 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.
👉 Magic Sake Cup: when this antique ceramic sakasuki is filled with clear liquid an "image of a bride" is revealed! The spherical glass lens at the bottom has a very long focal length in air, but when immersed in water the glass marble has the same focal length as a magnifying glass, unveiling the portrait.
👉 Bismuth Diamagnetic Trap Levitation:  neodymium cube magnet trapped between two pieces of strongly diamagnetic bismuth crystal.
👉 RGB Color Addition: three LED light boxes demonstrate the additive nature of colored light. Mixing Red, Green, and Blue to create Yellow, Magenta, and Cyan. An object casts shadows showing the following mixings: R+G=Y, G+B=C, and R+B=M. Adding all three R+G+B produces White.
👉 Nitinol Memory Wire: this alloy of nickel and titanium can be trained to a specific shape at high temperature.

👉 Thermobile: Nitinol wire loop heat engine- the memory wire straightens out when heated (contact with heat conducting brass wheel) causing the wheels to spin, providing mechanical kinetic energy from a cup of warm tea water.
👉 Memory Spring: some special alloys of brass can be made to have a shape memory triggered by temperature. These springs quickly change their length from 1 cm to 2.5cm when heated above 90 C (done here with hot water) and just as quickly shrink back to original size when cooled (immersed in cold water).
👉 String Hyperboloid by exploratorium : 26 strings held straight by hanging weights can be rotated as a set to produce a hyperboliod- the quadric surface related to the revolution of hyperbola around its axis of symmetry.
👉 Frozen Lightning Lamp: a Lichtenberg fractal created by electron discharge from a charged acrylic insulator. A piece of nonconducting acrylic is filled with electrons using a linear accelerator and then discharged to ground with a flash and bang- the figure is the permanent result.
👉 Ferrofluid Interactive Lava Lamp: special ferrofluid infused wax allows manipulation of the blobs of “lava” with a weak magnet, adding an interactive element to the already mesmerizing physics of convective heat flow, Archimedes principle, and immiscible liquids.
👉 Globe by Mova: rotating globe sealed within a clear liquid filled acrylic sphere. The rotation is powered by light that shines through the semi-transparent globe on to solar cells inside the globe which drive a motor. But what does the motor push against to maintain the rotation? Believe it or not it uses magnets to push against the Earth's magnetic field like a compass needle.
👉 Mendocino Motor: each face of solar cell is connected to a coil of copper wire under the opposing solar cell. When the rotor is lit from above the top solar cell provides electric current to the coil in the bottom position which becomes a temporary electromagnet that pushes against the permanent magnet in the base propelling the rotor to rotate.
👉 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.
👉 Light Pipe: internal reflection constrains most of the laser light to propagate along the bent acrylic rod- the physics of fiber optics.
👉 Chaotic Kinetic Sculpture: kinetic energy is passed between the two conjoined spheres on each side in a mathematically chaotic way in this motion sculpture sold as "Jupiter".
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