Channel: physicsfun

Category: Science & Technology

Tags: usaeducationtoys on amazonphysicsfunexperimentsvideosgeologyscience videosmoireillusionsan fransiscoamazing science toys/gadgetsexperimentscience and technologyflip oceanphysicsuseful thingsvintagetoymagneticunrealamazon toysmoiré artpuzzlestricksgeophysicsexploratoriumdesk toyscience toysamazonmuseumcompilationgrand illusionspuzzlescienceexecutive toy

Description: New Video 👉🏻 youtu.be/uqnj1Fx1ySQ 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. Purchasing items from the links on these pages will help support my IG page of science and wonder. Buy physicsfun toys on : bit.ly/2MOjFET physicsfun toys on amazon : amzn.to/36RRxt0 Follow on Instagram : instagram.com/physicsfun This video contains : 00:00 Intro 00:03 Kinetic Boom!- a spectacular Moiré kinetic art piece by artist/engineer/innovator Rafael Parra-Toro @parratoro which creates motion animation using the barrier-grid technique on a slab of acrylic. Stripes on the front form effects of constructive and deconstructive interference with the interlaced colorful image printed on the back to create motion as the viewer’s perspective changes. 00:43 Min♡-3D Illusion Frame 00:57 Hexagonal Lens Array: glass diffuser with hexagonal grid of lenses produces interesting pixelation and aliasing effects. Moving lines and patterns appear on the array as it slides across the square grid lines. 01:32 Plasma Arc Lighter Physics 01:58 Vintage Magneto Waveform: 1905 tech meets 2005! Using a digital storage oscilloscope to look at the AC waveform output of a vintage 5 bar telephone magneto generator. Note that although the output voltage is periodic, it is far from the ideal AC sine wave that we learn about (like those off the mains into our homes). Faraday’s Law describes the produced current in a moving coil of copper near a magnetic field, but it takes careful engineering of the coil and field to produce a sinusoidal AC output. This digital oscilloscope calculates the frequency and peak to peak voltage, which are of course related to how fast one cranks the generator. With a peak voltage of more than 350V, these magneto generators were used to ring telephone bells up to 20 miles away because only 10% of rural US had household electricity until the 1940s. 02:29 Sphere Sticks Puzzle: 30 identical wood pieces, each with two notches as shown, can create 12 interlocking pentagons in a perfect symmetry- look carefully and you can see that each rod is in an identical configuration with the 4 others that connect with it. Precision cut notches on the rods allow them to interlock with elastic tension such that vector sum of the 4 forces sum to zero in this tensegrity type equilibrium. The dodecahedron, with its 30 edges and 12 sides, is the basis of this puzzle sculpture. 03:01 Polage: art with polarized light using polarizing sheets and cellulose to create forms and colors. This sunglasses advertisement uses the art of polage and was produced by Austine Wood- the main developer of this art form. 03:14 Spherical Mirror and Pendulum: the curious inverted reflection from a concave spherical mirror. This video was challenging to shoot! There's a big one at the @exploratorium in SF CA worth a see! 03:29 Refined Galileo Thermometer 03:43 Scale Solar System Sticker Set: one of the most amazing facts about the planets in our solar system is their relative sizes. Finally! a set of stickers- made to scale- using images from NASA, brought to you by the Vsauce team @thecuriositybox. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and dwarf planet Pluto included for comparison- all in their current order (sometimes Pluto is closer than Neptune), and mounted here on a sheet of polycarbonate. On this scale, Neptune would be about 5 kilometers away from Mercury. 04:10 Newton's Spindle: the latest innovation- a quiet clacker (lol!) which uses neodymium magnets as the swinging weights. The weights still collide but without making physical contact via magnetic repulsion, yet the exchange of momentum is just like that of a regular Newton’s yo-yo. Newton's 3rd Law states that action force equals opposite reaction force- here the red and blue weights (embedded magnets) are equal in mass, so the forces of each collision provide accelerations that are equal and opposite such that the deceleration of the incoming sphere is equal to the acceleration of the outgoing sphere and the spheres trade places leaving one always at rest. 04:42 Magic Vortex Marble 05:26 Sand Shaker @exploratorium: With special thanks to the Exploratorium! Exploratorium museum in San Fransisco, USA that features the physics and psychophysics of vision and perception. 05:59 Extreme Viscosity Sculpture 06:53 BONUS CLIPS Background music by : Fragments - AERØHEAD soundcloud.com/aerohead Creative Commons — Attribution-ShareAlike 3.0 Unported — CC BY-SA 3.0 Free Download / Stream: bit.ly/al-fragments Music promoted by Audio Library youtu.be/O7PzeUTESAA #physicsfun #scienceandtechnology