Jaw-dropping Physics Toys/Gadgets 3
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Published 2022-09-10
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 (Official websit ๐บ๐ธ)
physicsfun toys on amazon :
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Follow on Instagram :
@physicsfun
This video contains :
๐๐ป Perspective Anamorphosis: oblique graphical projection creates a wonderful 3D illusion, implemented here with color printing and cutout card-stock.
๐๐ป Magneto Top: a top that generates electricity and lights LEDs when spun.
๐๐ป Laser Fog Light Show: making the invisible visible - a rotating mirror produces a cone of laser illumination revealing the complex and beautiful patterns of nondiffusive turbulent flow as the air sodden with fog droplets mixes into the ambient air. Looks even better in person without the flicker from the frame rate aliasing during video capture (although I was able to minimize it somewhat- well...when I posted it the Instagram process made the flicker worse).
๐๐ป Bouillant de Franklin (Hand Boiler): reversible liquid-gas phase transition device made famous by Benjamin Franklin who was one of the first to describe the physics of its operation.
๐๐ป Floating Hourglass Puzzle: famous physics puzzle- why does the hourglass not start rising right away?
๐๐ป Pin-Tumbler Lock: simple and accurate model of how a basic lock works.
๐๐ปPendulum Snake: 15 independent swinging pendulums, each with a slightly longer period than the one to its left side, create mesmerizing wave patterns.
๐๐ป Sodium Fluorescein: this organic compound acts as a special dye that absorbs energy of blue and UV light and then emits it as green light. In daylight a solution of fluorescein will appear to have a strange green highlight, but when illuminated from behind it is yellowish gold in color due to absorption of all the blue and green light that tries to pass through. This sample of fluorescein solution is encased in acrylic and made in to this odd paperweight I found on eBay. A fun physics find!
๐๐ป UFO Mirascope: two parabolic mirrors create a 3D image above the actual object.
๐๐ป Thermochromic Chiral Liquid Crystals: the thin layer changes color as the molecules of the liquid crystal change orientation and spacing during the phase transition from liquid (warm) to crystal (cool). A postcard from the amazing Exploratorium museum in San Francisco.
๐๐ป Tesla Zero: a top that generates electricity and lights LEDs when spun.
๐๐ป Rainbow Twirler: shaped by angular momentum and centripetal acceleration- when the speed of the ribbon is faster than the flicker fusion frequency of human vision it looks like a bubble. As the rotation speed increases the shape flattens- similar to the way the Earth bulges due to its rotation. Found this fun motorized base for this item in a toy store last week.
๐๐ป Spiral Kinetic Art: hanging by fishing line a single rod of aluminum is shaped into connected helixes- one clockwise the other counterclockwise.
๐๐ป Moirรฉ Necklace: kinetic art jewelry by David Derksen Design utilizes Moirรฉ interference to generate pattern and motion.
๐๐ป Bismuth Crystal Pendent: element 83 on the periodic table, bismuth becomes crystalline when melted and cooled.
๐๐ป Piezo Film Flicker: a neon bulb flashes from electricity created by the mechanical deformation of a strip of polyvinylidene difluoride (PVDF) piezo film.
๐๐ป Ghostly Lenticular: changing the angle of view produces a subtle morphing from a Victorian era photo to an unexpected ghostly version of skeletons.
Background music by : YouTube Audio Library
1) Cosmic Drift - DivKid
2) Bonfire - An Jone
3) Icelandic Arpeggios - DivKid
4) Bay Street Billionaires - Squadda B
5) Forever - Anno Domini Be
All Comments (21)
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Whatโs the one thing you like about @physicsfun YouTube channel? where are you all from ๐?
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For the hourglass floating in the tube "puzzle": When the bottom of the hourglass is empty it is more buoyant than the top, so it tries to flip to the top, but its stopped by the sides of the tube, wedging it in place. Once just over half the sand is in the bottom it floats upright and rises.
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1:54 - hourglass itself is lighly bouyant in this liquid with this preasure. When you rotate the tube - hourglass center of mass is higher than center of bouyancy and it tries to rotate (to position when sand at bottom and empty part at top). When it trying to rotate it touches walls of the tube so friction prevent hourglass to float up. When sand pass the half way - center of mass become lower than center of buoyancy and there no more force trying to tip hourglass and no more friction to tube's walls so nothing now prevents hourglass to float up.
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3:30 i really like that sodium fluorescin paperweight. the green-gold is beautiful to me.
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Recently, we saw the butterfly with ant biting it poorly, We gently hold the butterfly's wings while carefully remove the ant below it. We found no puller as quickly as possible to remove the ant biting butterfly poorly, but we found nipper and use it carefully to remove ant without any harm to butterfly's legs. That was dangerous, but fortunately, we manage to do it carefully and now the butterfly is save and free from that annoying ant.
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Yes that is effect of centripetal acceleration.Centripetal force is a type of force that acts inwardly to the center of rotation and Centrifugal force is an type of force that acts outwardly to the center of rotation.Centrifugal force is a pseudo force. Fun fact-Centripetal force is an action force where as centrifugal force is not a reaction force.
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your videos are great ..โค๏ธ from INDIA ๐ฎ๐ณ
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your quiz is uncannily timed since i just relearned the definitions of centripetal and centrifugal on the same day you posted this vid. centripetal is the force that keeps an orbiting object near its axis of orbit, which can be thought of as opposing the centrifugal pseudo-force that is causing the orbiting object to move away from the axis of orbit. 7:25
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i saved your vid for future inspirations. very stimulating inventions here.
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These are such amazing toys.. Can't wait to have them all ๐
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7:37 The rotation of the liquid inside is due to Centrifugal force and the rotation of the blade is Centripetal force. Centrifugal force is pseudo force.
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"Cntrifugal" force isn't really a force. It's all about conservation of angular momentum.
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2:44 spring-loaded pistons actuated by thrusting into a cavity, cxe
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Is there a way to get one for my desk?
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Physics is love, physics is life!
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I liked it very much. How can I get these strings?
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4:20 its pretty one, looks like real ufo haha
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There was a restaurant in Minneapolis that had large framed pictures that utilized that ghostly lenticular property. I believe it was called Hell's Kitchen (not related to the show). They were really cool.
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Just finished watching something on some other channel that left me hungry for your background music. 5 out of 5 ๐
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background music is best as always
