Channel: physicsfun

Category: Science & Technology

Tags: amazing science gadgets/toyseducationphysicsfunphysics gadgetsscience gadgets amazonscience videoscience videosamazing science toys/gadgetsscience and technologyamazon gadgetsscience gadgetscience kitamazing gadgetslatest gadgetsamazing science gadgetstoyssurface sciencesquaring a circlescience toynew gadgetsscience toystechnologygadgetsscience gadgets toysscience gadgets

Description: 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 (Official websit 🇺🇸) physicsfun toys on amazon : amzn.to/36RRxt0 Follow on Instagram : @physicsfun This video contains : 👉🏻 Squaring a Circle: from one particular point of view this wireframe sculpture looks like a circle, from another it’s a square! From other viewing angles one can see that the underlying curve is comprised of four identical segments of a parabola. 👉🏻 Vintage Tin Whale: a toy employing the Coandă effect where an air stream attaches and wraps around the styrofoam ball trapping it in the center of the stream. 👉🏻 "Pet Tornado": whirlpool powered by a magnetic stirrer. 👉🏻 Chaotic Decision Maker Pendulum: adding magnetic forces to gravity gives this comical pointing pendulum chaotic motion- not random, but very sensitive to slight differences in initial launch conditions. 👉🏻 Ghost of Einstein": laser etched version of the hollow face illusion. 👻 Spooky science - the inverted image mask of Einstein appears animated and seems to always be looking in the direction of the viewer. 👉🏻 TrueBalance: coordination challenge puzzle- get the six disks, connected by bearing swivels, into a vertical stack by only tilting the handle. 👉🏻 “Impossible” Domino: a pair of specially engineered domino type objects where the right domino knocks over the left one, but then stands back up! 👉🏻 Harbottle Balloon Demo: a regular untied balloon remains inflated- one can even look down the neck of the balloon and see inside! This new addition to my collection just arrived in my @thecuriositybox. 👉🏻 Turntable @exploratorium : rolling disks on a spinning platform. 🌟 With special thanks to the Exploratorium!  👉🏻 Floating Hourglass Puzzle: famous physics puzzle- why does the hourglass not start rising right away? The glass only ascends after about half of the sand has transferred to the lower bulb. The hourglass is a normal glass timer, it is submersed in plain water, and the main tube has an inner diameter which is at least 5mm larger than the diameter of the glass. A simple physics property of the hourglass changes and explains this behavior. I'll post the answer in a few days. Another puzzle made famous by Martin Gardner. ⏳➡️ Answer: Thanks for all the creative and thoughtful answers! Here’s my best take- sand moves within any hourglass and the property of the hourglass that changes most significantly as the sand redistributes is its center of mass. When the assembly is initially flipped over the hourglass is very top heavy with all the sand in the top chamber so it tilts and presses against the wall of the tube with enough force that friction holds it in place. When enough sand moves to the bottom, the hourglass straightens up lessening the friction, and it then begins to rise. 👉🏻 Water Drop Pulse Kinetic Sculpture: “Heart In A Bottle”. 👉🏻 Holographic Optical Top: a vintage sheet metal disk top spins with patterns created from reflective diffraction gratings- seen here illuminated by a light panel and flashlight- each producing illusions of depth and curious motions. Produced in the 1990s this set includes three interchangeable rings and circles of foil on card stock. 👉🏻 TV Rock: special crystalline form of the mineral gypsum acts as a natural fiber optic image conduit. A laser reveals a couple of interesting properties of these crystals: When directed along the grain of the fibers the laser beam emerges a circle of light (445nm blue used here). Background music by : YouTube Audio Library 1) New Day - Patrick Patrikios 2) Tempos Vari - Freedom Trail Studio 3) Icelandic Arpeggios - DivKid 4) Bay Street Billionaires - Squadda B 5) Interstellar Mood - Nico Staf 6) Can't Sleep - Eveningland 7) Vital Whales - Unicorn Heads