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physicsfun physicsfun

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physicsfun  Physics describes the real magic of the universe. Visit my store! ➡️ Follow this link:

http://physicstoys.blogspot.com/p/physics-toy-store.html

Whee-Lo: the original version of this toy from the '60s- physics of: angular momentum, magnets, rotational and translational kinetic energy, phase locking, it's all there. Who else had one of these? ➡️ Follow the link in my profile for info on where to buy this and other amazing items featured here on @physicsfun #wheelo #physics #physicstoy #magnetism #magneticfield #phaselocking #rotationalinertia #inertia #kineticenergy #kineticart #science #toy #antiquetoy #throwback #throwbacktoy

Heat Pipe: a device that transfers heat with great efficiency. Here a liquid crystal goes from green (room temp) to black (near freezing) showing the heat transfer to a piece of ice through a heat pipe (top) and a similar sized piece of solid copper rod (bottom). As you can see the heat pipe cools much faster than the copper rod even though copper is an excellent conductor of heat. The heat pipe is a thin shell of copper that surrounds a tube of sponge like material filled with some water vapor and sealed with a low pressure inside. The heat is transferred from one end to the other by the phase transition of water- at the warm end water in the sponge evaporates into vapor absorbing heat energy, the vapor travels down the hollow core to the cold end where it condenses into liquid releasing heat energy. The water is wicked by the sponge to the warm end and the process repeats. Heat pipes like this one pull heat away from the CPUs in modern computers preventing them from melting. The amazing heat transfer ability is clearly felt in the fingertips if one places the copper rod and heat pipe into a glass of ice water-the heat pipe immediately gets cold! Follow the link in my profile for info on where the buy this heat pipe demo and other amazing items featured here on @physicsfun. #physics #physicstoy #physicsfun #thermodynamics #heat #heatpipe #physicsdemo #liquidcrystal #thermometer #heattransfer #conductivity #phase #phasetransition #latentheat #science #scienceexperiment #scienceisawesome

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). ➡️Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #liquidcrystal #physics #physicstoy #Exploratorium #phase #phasetransition #chiral #science #thermometer #braggdiffraction #diffraction #interference #solidstate #chemistry #science #scienceisawesome

"Pet Tornado": whirlpool powered by a magnetic stirrer (like those in a chemistry lab). The knob on the side has settings F1 through F5 😁 One of my sillier toys- but vortices are just so cool. ➡️ Follow the link in my profile for information on where to get vortex lamps and other amazing items featured here on @Physicsfun #twister #tornado #whirlpool #physics #physicstoy #fluiddynamics #angularmomentum #vortex #vortices #pettornado #fujitascale #science #scienceisawesome

The Helicone: an interactive kinetic sculpture designed by @john.edmark and distributed by playableArt. With a bit of practice I finally mastered the transformation in both directions: A snap of the wrist imparts angular momentum to the laser cut wood petals which then rotate until an internal mechanism stops their motion with predetermined spacing- a helix transforms to an abstract pine cone. A second snap of the wrist in the opposite direction returns the helix. ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #kineticart #angularmomentum #physicstoy #physics #rotation #rotationalinertia #art #science #scienceisawesome

Color Changing Top: antique spinning toy with interlocking gears produce a kaleidoscopic effect with primary colors. The colors blur and mix as the rotation exceeds the flick fusion frequency of human vision. Found this vintage kinetic art top on Etsy. ➡️ Follow the link in my profile for info on where to get many of the amazing items featured here on @physicsfun #spin #spintop #gears #physicstoy #kineticart #science #scienceisawesome #physics #flickerfusion #angularmomentum

Widmanstatten Pattern: this slice of Gibeon Meteorite has been etched with mild acid to show these nickel-iron crystalline structures that are only found in meteorites. Widmanstatten patterns from nickel-iron can not be produced in the lab or in any factory- the structure only forms if the metal cools at a rate of 100 degrees per million years! ➡️ Follow the link in my profile for info on where to get this and other amazing curiosities featured here on @physicsfun #physics #meteorite #widmanstatten #physicstoy #rockhound #metallurgy #meteor #octahedrite #astronomy #astrophysics #science #scienceisawesome #gibeonmeteorite #geophysics #geophysicstoy #nickel #iron

Eames Era Kinetic Art: a spray of harmonic oscillators (masses on spring steel wire) produce hypnotic motion in this vintage art piece from the early 1970s. Kinetic sprays like this are mostly from designer Laurids Lonborg of Denmark and can also serve as earthquake detectors. Not recommended for households with cats! ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #physics #physicstoy #kineticart #eames #eamesera #hookeslaw #harmonic #oscillator #harmonicoscillator #lauridslonborg #science #scienceisawesome

Daruma Otoshi (Dropping Priest): Traditional Japanese physics toy. Use the hammer to knock out pieces, but without tipping over the stack. Newton's 1st Law as seen in slow motion- a mass at rest tends to stay at rest. ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #iPhoneSloMo #250fps #physics #physicstoy #isaacnewton #Newtonsfirstlaw #toy #Bodhidharma #impulse #inertia #lawofinertia #DarumaOtoshi #science #scienceisawesome #folktoy #desktoy #hammer #impulse

Buoyant Heavy Metal: a ball bearing (solid steel) floats on top of liquid mercury. Given that mercury is almost twice as dense as steel, Archimedes's principle predicts that roughly half the ball bearing will stick out exposed above the liquid surface. Mercury (element Hg) is very toxic - please don't handle it without appropriate hazardous material safety training. ➡️ Follow the link in my profile for info on where to get many of the amazing items featured here on @physicsfun #achimedes #archimedesprinciple #buoyancy #physics #physicstoy #fluiddynamics #buoyantforce #mercury #Hg #steel #density #elements #science #scienceisawesome

Hoberman Orbiter: vintage kinetic sculpture based on the isokinetic structure of the Hoberman Sphere. Here the sphere is opened by centripetal acceleration provided by a motor in the base. The motor is programmed to repeatedly spin for 10 seconds and turn off for 5 seconds. The structure expands with the help of the colored masses that provide additional angular momentum and then contracts as friction slows the spin rate. ➡️ Follow the link in my profile for more info on Hoberman Spheres and where to get many of the amazing items featured here on @physicsfun #math #mathtoy #physics #physicstoy #geometry #hoberman #hobermansphere #sphere #linkages #kineticart #centripetal #centrifuge #centripetalacceleration #foldablelinkages #isokinetic #science #scienceisawesome

50|50 Cube: custom 1 Newton SI unit version. A handheld study in material density contrast- the @spinpal Kickstarter campaign is almost complete!- follow the link in my profile for details. This precision machined block is comprised of equal 101.97g masses (each block weighing exactly 1N on Earth) of the metals tungsten (W) and magnesium (Mg)- however the volume of magnesium is 11 times that of the very dense tungsten! One must hold and manipulate this simple sculpture for greatest impact. W: 19.25g/cm3 Mg: 1.74g/cm3 ➡️ Follow the link in my profile for info on where to buy this and other amazing items featured here on @physicsfun #physics #physicstoy #density #materialscience #tungsten #balancescale #magnesium #science #scienceisawesome

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