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@physicsfun

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

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play_circle_filled Magnetic Field Viewer: visualizing the invisible- tiny iron filings suspended in viscous oil gracefully chain up along the magnetic field lines of the ferromagnet, revealing its dipole configuration. ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #magnetic #magneticfield #magneticdipole #dipole #physics #physicstoy #magnet #electromagnetism #science #Faraday #cowmagnet #dipolefield #scienceisawesome.

Magnetic Field Viewer: visualizing the invisible- tiny iron filings suspended in viscous oil gracefully chain up along the magnetic field lines of the ferromagnet, revealing its dipole configuration. ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #magnetic #magneticfield #magneticdipole #dipole #physics #physicstoy #magnet #electromagnetism #science #Faraday #cowmagnet #dipolefield #scienceisawesome ...

play_circle_filled Salt Fractionation: two liquids that won’t stay mixed! Acetone (dyed blue) floats on top of the higher density salt water (dyed orange). Acetone usually dissolves in water through hydrogen bonding interactions, but solubility can be altered. In a process called “salting out” a sufficient amount of salt is dissolved such that the water molecules, which are much more attracted to the resulting Na+ and Cl- ions (through ion-dipole bonds), will then ignore the weaker acetone hydrogen bonds. This results in the spontaneous separation (shown here in real time) of the liquids no matter how well shaken up. ➡️ Follow the link in my profile for info on how to make this and find other amazing items featured here on @physicsfun  #fluiddynamics #saltingout #saltfractionation #electrolyte #ionicbonds #iondipole #acetone #immiscible #liquiddrop #physics #physicstoy #physicsfun #surfacetension #viscosity #archimedesprinciple #bouyancy #scienceisawesome.

Salt Fractionation: two liquids that won’t stay mixed! Acetone (dyed blue) floats on top of the higher density salt water (dyed orange). Acetone usually dissolves in water through hydrogen bonding interactions, but solubility can be altered. In a process called “salting out” a sufficient amount of salt is dissolved such that the water molecules, which are much more attracted to the resulting Na+ and Cl- ions (through ion-dipole bonds), will then ignore the weaker acetone hydrogen bonds. This results in the spontaneous separation (shown here in real time) of the liquids no matter how well shaken up. ➡️ Follow the link in my profile for info on how to make this and find other amazing items featured here on @physicsfun #fluiddynamics #saltingout #saltfractionation #electrolyte #ionicbonds #iondipole #acetone #immiscible #liquiddrop #physics #physicstoy #physicsfun #surfacetension #viscosity #archimedesprinciple #bouyancy #scienceisawesome ...

play_circle_filled Pentominoes 3 Color Challenge: fit all 12 pentominoes into a 6x10 rectangle such that no two identically colored pieces touch. Pentominoes are set of all 12 possible arrangements of five identical squares joined edge to edge. Since 5x12=60, the pentominoes can tile a 6 x 10 rectangle with no gaps (there are 2339 ways to do this- yet even finding one solution is quite difficult). Adding the 3 color challenge reduces the number of possible solutions to just 94! Here is one solution- can you find another? I made this set and frame using a laser cutter at my local maker space @fresnoideaworks ➡️ Follow the link in my profile for info on where to get a pentominoes set and other amazing items featured here on @physicsfun #math #mathtoy #pentominoes #woodworking #tiling #mathpuzzle #physicstoy #science #scienceisawesome #mathstoy.

Pentominoes 3 Color Challenge: fit all 12 pentominoes into a 6x10 rectangle such that no two identically colored pieces touch. Pentominoes are set of all 12 possible arrangements of five identical squares joined edge to edge. Since 5x12=60, the pentominoes can tile a 6 x 10 rectangle with no gaps (there are 2339 ways to do this- yet even finding one solution is quite difficult). Adding the 3 color challenge reduces the number of possible solutions to just 94! Here is one solution- can you find another? I made this set and frame using a laser cutter at my local maker space @fresnoideaworks ➡️ Follow the link in my profile for info on where to get a pentominoes set and other amazing items featured here on @physicsfun #math #mathtoy #pentominoes #woodworking #tiling #mathpuzzle #physicstoy #science #scienceisawesome #mathstoy ...

play_circle_filled Trihexaflexagon: folded and glued out of a single strip of paper this object has six distinct sides made from three sets of triangle panels. Discovered in 1939 by mathematician Author Stone and developed along with fellow Princeton student Richard Feynman and others, but made popular by Martin Gardner. ➡️ Follow the link in my @physicsfun profile to make one yourself with scissors, white glue, and a printer. #math #mathtoy #mathstoy #hexaflexagon #trihexaflexagon #Feynman #topology #physics #physicstoy #geometry #martingardner #origami #science #algorithm #MartinGardener #scienceisawesome.

Trihexaflexagon: folded and glued out of a single strip of paper this object has six distinct sides made from three sets of triangle panels. Discovered in 1939 by mathematician Author Stone and developed along with fellow Princeton student Richard Feynman and others, but made popular by Martin Gardner. ➡️ Follow the link in my @physicsfun profile to make one yourself with scissors, white glue, and a printer. #math #mathtoy #mathstoy #hexaflexagon #trihexaflexagon #Feynman #topology #physics #physicstoy #geometry #martingardner #origami #science #algorithm #MartinGardener #scienceisawesome ...

play_circle_filled Beat Interference Chimes: these aluminum chimes resonate at slightly different frequencies. When both chimes are struck the sound waves interfere both constructively and deconstructively producing the interesting wavering sound called a beat. The beat frequency- the rate at which the sound goes loud to quiet- is equal to the difference between the frequencies of the two chimes. Here the the main frequencies are 1809Hz and 1766Hz producing a beat at 43 Hz. ➡️ Follow the link in my profile to get a chime set and learn more about this and other phenomena featured here on @physicsfun #physicstoy #soundwaves #interference #beatfrequency #superposition #waves #pure #tones #vibrations #chimes #frequency #resonance #science #acoustics #constructiveinterference #decostructive #scienceisawesome #sinewave.

Beat Interference Chimes: these aluminum chimes resonate at slightly different frequencies. When both chimes are struck the sound waves interfere both constructively and deconstructively producing the interesting wavering sound called a beat. The beat frequency- the rate at which the sound goes loud to quiet- is equal to the difference between the frequencies of the two chimes. Here the the main frequencies are 1809Hz and 1766Hz producing a beat at 43 Hz. ➡️ Follow the link in my profile to get a chime set and learn more about this and other phenomena featured here on @physicsfun #physicstoy #soundwaves #interference #beatfrequency #superposition #waves #pure #tones #vibrations #chimes #frequency #resonance #science #acoustics #constructiveinterference #decostructive #scienceisawesome #sinewave ...

play_circle_filled Water Spinner @exploratorium: The parabolic surface of a contained liquid under the combination of centripetal acceleration and the pull of gravity. Centripetal acceleration increases proportional to the distance from the axis of rotation, so the liquid stacks highest far from the center. Also, a faster spin rate results in a deeper and steeper parabola- note how the surface flattens out as the exhibit comes to rest. Additional physics- a pair of waves (from the initial impulse) travel along the parabolic surface of the contained liquid, creating temporary peaks and valleys as they constructively and deconstructively interfere. As seen here in 240 fps slow motion, the symmetric waves travel and reflect along the curved surface for the first few rotations until damped out via viscosity and friction.🌟 With special thanks to the Exploratorium! ➡ Follow the link in my profile for more info about this exhibit at the Exploratorium- and where to find many of the items featured here on @physicsfun. #exploratorium #physics #physicsfun #physicstoy #centripetalacceleration #spincam #angularmomentum #parabola #parabolic #pascalsprinciple #hydrostatics #spinning #kineticart #science #scienceisawesome.

Water Spinner @exploratorium : The parabolic surface of a contained liquid under the combination of centripetal acceleration and the pull of gravity. Centripetal acceleration increases proportional to the distance from the axis of rotation, so the liquid stacks highest far from the center. Also, a faster spin rate results in a deeper and steeper parabola- note how the surface flattens out as the exhibit comes to rest. Additional physics- a pair of waves (from the initial impulse) travel along the parabolic surface of the contained liquid, creating temporary peaks and valleys as they constructively and deconstructively interfere. As seen here in 240 fps slow motion, the symmetric waves travel and reflect along the curved surface for the first few rotations until damped out via viscosity and friction.🌟 With special thanks to the Exploratorium! ➡ Follow the link in my profile for more info about this exhibit at the Exploratorium- and where to find many of the items featured here on @physicsfun. #exploratorium #physics #physicsfun #physicstoy #centripetalacceleration #spincam #angularmomentum #parabola #parabolic #pascalsprinciple #hydrostatics #spinning #kineticart #science #scienceisawesome ...

play_circle_filled Magnetic Chaotic Pendulum: adding magnetic forces to gravity gives this pendulum chaotic motion- not random, but very sensitive to slight differences in initial launch conditions. Arranging the dipoles magnets on the base leads to different patterns of motion- here the center magnet attracts and the rest are set to repel. ROMP pendulum by Hog Wild toy company. ➡️ Follow the link in my profile for more info on where to get chaotic magnetic pendulums and other amazing items featured here on @physicsfun #chaos #chaotic #pendulum #physics #physicstoy #physicsfun #nonlinear #strangeattractor #chaostheory #nonlieardynamics #magnet #dipole #magneticfield #science #scienceisawesome.

Magnetic Chaotic Pendulum: adding magnetic forces to gravity gives this pendulum chaotic motion- not random, but very sensitive to slight differences in initial launch conditions. Arranging the dipoles magnets on the base leads to different patterns of motion- here the center magnet attracts and the rest are set to repel. ROMP pendulum by Hog Wild toy company. ➡️ Follow the link in my profile for more info on where to get chaotic magnetic pendulums and other amazing items featured here on @physicsfun #chaos #chaotic #pendulum #physics #physicstoy #physicsfun #nonlinear #strangeattractor #chaostheory #nonlieardynamics #magnet #dipole #magneticfield #science #scienceisawesome ...

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"Magic" Wallet: this pocketbook has a special double hinge that allows the wallet to be opened from either side, and leads to some rather nonintuitive consequences. Note that once inserted, the bill shows the same face independent of which way the wallet is opened. The construction is similar to the famous Jacob's Ladder toy. ➡️ Follow the link in my profile for info on where to buy this and other amazing items featured here on @physicsfun #magicwallet #milkmanswallet #mathtoy #physicstoy #kineticart #kineticillusion #jacobsladder #scienceisawesome ...

play_circle_filled Spectral Decoder CD Art: hidden images are revealed through ingenious and intricate Moiré pattern interference on the CD Cassadaga by the band Bright Eyes. Carefully align and slide the included transparent sheet of horizontal prisms (similar to a Fresnel lens) and the secret images pop into view giving insights and artistic renderings of the songs on this release. The Spectral Decoder process is patented and manufactured by 3D Images Ltd. of London. The accompanying music is the opening bars from the 8th track of this CD

Spectral Decoder CD Art: hidden images are revealed through ingenious and intricate Moiré pattern interference on the CD Cassadaga by the band Bright Eyes. Carefully align and slide the included transparent sheet of horizontal prisms (similar to a Fresnel lens) and the secret images pop into view giving insights and artistic renderings of the songs on this release. The Spectral Decoder process is patented and manufactured by 3D Images Ltd. of London. The accompanying music is the opening bars from the 8th track of this CD "Middleman". ➡️ Follow the link in my profile for info on where to get this CD and other amazing items featured here on @physicsfun #moire #moirepattern #constructiveinterference #interference #physics #physicstoy #math #mathtoy #mathstoy #FocalDecoder #fresnellens #art #mathart #science #scienceisawesome #physicsfun #BrightEyes #cassadaga ...

play_circle_filled Poly-acrylamide Polymer Vanishing Act: these spheres of hydrophilic polymer have an almost identical index of refraction as that of water- thus when submersed they become invisible. Note the elasticity of these spheres from the way they bounce, while at the same time they refract their surroundings as a spherical lens. The super absorbent spheres start as hard crystals with a radius of 2mm and grow to 11mm when immersed in water. ➡️ Follow the link in my profile for info on where to get these and other amazing items featured here on @physicsfun #indexofrefraction #refraction #physics #physicstoy #hydrophilic #watergel #watergelcrystals #polyacrylamide #optics #invisible #invisibility #science #scienceisawesome.

Poly-acrylamide Polymer Vanishing Act: these spheres of hydrophilic polymer have an almost identical index of refraction as that of water- thus when submersed they become invisible. Note the elasticity of these spheres from the way they bounce, while at the same time they refract their surroundings as a spherical lens. The super absorbent spheres start as hard crystals with a radius of 2mm and grow to 11mm when immersed in water. ➡️ Follow the link in my profile for info on where to get these and other amazing items featured here on @physicsfun #indexofrefraction #refraction #physics #physicstoy #hydrophilic #watergel #watergelcrystals #polyacrylamide #optics #invisible #invisibility #science #scienceisawesome ...

play_circle_filled High Tech Rain Stick: white noise- the sound of two thousand metal spheres falling and bouncing through a plastic labyrinth creates a power spectrum of sound waves with all frequencies at equal intensity, creating the shhh sound we often encounter from many random processes. Part of the cascade slowed to 240 FPS midway through video. ➡️ Follow the link in my profile for info on where to get this device and other amazing items featured here on @physicsfun #physics #physicstoy #sound #physicsfun #spectrum #spectralanalysis #whitenoise #acoustics #rainstick #science #scienceisawesome #stochastic #random.

High Tech Rain Stick: white noise- the sound of two thousand metal spheres falling and bouncing through a plastic labyrinth creates a power spectrum of sound waves with all frequencies at equal intensity, creating the shhh sound we often encounter from many random processes. Part of the cascade slowed to 240 FPS midway through video. ➡️ Follow the link in my profile for info on where to get this device and other amazing items featured here on @physicsfun #physics #physicstoy #sound #physicsfun #spectrum #spectralanalysis #whitenoise #acoustics #rainstick #science #scienceisawesome #stochastic #random ...

play_circle_filled Faraday Train: two magnets, one battery, and a coil of bare copper wire are the simple essence of this self propelled craft. These magnets conduct electricity, thus when put in contact with the coil current will flow creating a solenoidal magnetic field in the vicinity of the battery, which in turn pushes on the magnets at each end of the battery moving the craft along. Using spherical neodymium magnets allows the craft to slide along the coil with minimal friction. ➡️ Follow the link in my profile to buy the parts to make your own and get other amazing items featured here on @physicsfun #faraday #faradaytrain #physics #physicsfun #physicstoy #coil #solenoid #electromagnet #electromagnetism #neodymium #magnet #ampere #ampereslaw #magneticfield #magneticrepulsion #magneticforce #science #maker #diy #scienceisawesome.

Faraday Train: two magnets, one battery, and a coil of bare copper wire are the simple essence of this self propelled craft. These magnets conduct electricity, thus when put in contact with the coil current will flow creating a solenoidal magnetic field in the vicinity of the battery, which in turn pushes on the magnets at each end of the battery moving the craft along. Using spherical neodymium magnets allows the craft to slide along the coil with minimal friction. ➡️ Follow the link in my profile to buy the parts to make your own and get other amazing items featured here on @physicsfun #faraday #faradaytrain #physics #physicsfun #physicstoy #coil #solenoid #electromagnet #electromagnetism #neodymium #magnet #ampere #ampereslaw #magneticfield #magneticrepulsion #magneticforce #science #maker #diy #scienceisawesome ...

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