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

Luminous Transmittance of Eclipse Glasses: a safe solar filter should transmit less than 0.003% of visible light and less than 0.5% of near Infrared. These eclipse glasses from Rainbow Symphony use filters of aluminized Mylar that provides a total luminous transmittance of 0.00067%, a 150,000 to one reduction in radiant energy! The 2500°C filament of a 60 Watt incandescent bulb appears as a faint red glow when viewed though a safe solar filter. Enjoy the eclipse next Monday and please be safe! ➡️ Follow the link in my profile for more info and on where to get the amazing items featured here on @physicsfun #physicstoy #physics #solareclipse #solarviewing #solarfilter #eclipseglasses #luminous #luminoustransmittance #science #scienceisawesome #totaleclipse

Solar Eclipse Scale Model: the 3.3 inch Moon casts its shadow onto a 12 inch Earth globe as the Sun sets over the bluffs of the Central Coast. The Earth, Moon, and the distance between them (lunar orbit radius) are all to scale in this simulation of a solar eclipse. The Moon orbits the Earth at an average distance of 30 Earth diameters, or 30 feet away at this scale. Leaving tomorrow to drive to Oregon to see the total eclipse! Video shot on the cliffs just north of Cayucos CA ➡️ Follow the link in my profile for info on where to get this and many other amazing items featured here on @physicsfun #physics #physicstoy #globe #scalemodel #eclipse #totaleclipse #syzygy #moonglobe #solareclipse #luna #science #scienceisawesome

50|50 Cube: a handheld study in material density contrast. This precision machined block is comprised of equal 200g masses 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

Diamagnetic Mini Hoverboard: in this commercially available version a thin pyrolytic graphite sheet floats above a concave powerful neodymium magnet creating an environment with minimal friction- the thin sheet carrying a lightweight foam Hoverboard will swing back and forth for a couple minutes. By NeoLev- with a Back to the Future II theme! Diamagnetic substances develop temporary repulsive magnetic fields only when they are exposed to a magnetic field from another source. Graphite of this sort is the most diamagnetic substance known. ➡️ Follow the link in my profile for info on where to buy this and other amazing items featured here on @physicsfun #diamagnetism #NeoLev #physics #physicstoy #hover #hoverboard #BttF #magnetism #magneticfield #electromagnetism #levitation #maglev #pyrolytic #neodymium #science #scienceisawesome

Tesla Zero: a top that generates electricity and lights LEDs when spun. This top contains a strong dipole magnet which becomes the rotor in this alternator set up. In accordance with Faraday's law, the rapidly changing magnetic field of the spinning top induces an AC current In the 1000 turn coil in the base. The intensity of the light emitted from the 3 LEDs in the base indicates how much current is being generated- and the base is composed of transparent plastic that serves as a light pipe to distribute the emitted light via internal reflection. Special thanks to Tobi Lee of @fireflylabs for sending me this fantastic top and base. ➡ Follow the link in my profile for info on where to get this top and other amazing items featured here on @physicsfun #physics #magneto #alternator #spinningtops #desktoy #indiegogo #physicstoy #physicsfun #faraday #faradayslaw #tesla #magneticinduction #science #scienceisawesome

Pendulum Snake @exploratorium: ten swinging spheres, the first has a frequency of 15 swings per 30 seconds, the second has 16 in the same time, the third has 17, up to the tenth with 24 swings per 30 seconds. If released at the same time and height the amazing patterns result as each independent pendulum goes in and out of phase with the rest. Note that for a pendulum the frequency of oscillation depends on the square root of its length. 🌟 With special thanks to the Exploratorium! ➡️ Follow the link in my profile for more info and where to find many of the amazing items featured here on @physicsfun #exploratorium #kineticenergy #physics #oscillation #pendulum #pendulumsnake #physicstoy #kineticart #frequency #phase #periodic #cycles #science #scienceisawesome

Bottle, Hoop, and Nail Trick: with some practice a snap of the wrist removes the hoop and the nail falls straight into the bottle. Newton's 1st Law as seen in slow motion- a mass at rest tends to stay at rest. (Best to watch with sound/audio) Balancing the nail on the hoop ensures the nail is directly over the top of the bottle. The hoop is removed so quickly that it does not interact significantly with the sufficiently massive nail, and thus the nail remains over the mouth of the bottle so that gravity pulls it in. ➡️ Follow the link in my profile for info on where to get this and many other amazing items featured here on @physicsfun #iPhoneSloMo #250fps #physics #physicstoy #isaacnewton #Newtonsfirstlaw #bottlehoopnail #impulse #inertia #lawofinertia #science #scienceisawesome #MartinGardner #impulse

Pythagorean Puzzle: a proof, in physical form, of one of the most famous equations concerning the sides of any right triangle. The area of a square with side c of the hypotenuse is indeed equal to the sum of the areas of the squares of side a and b. This kit also allows at least two other ways to prove this theorem named after the famous Greek mathematician from 500 BC. One of the most used formulas when calculating vectors in physics classes 😬 ➡️ Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #math #mathtoy #triangle #square #polygon #pythagoras #pythagoreantheorem #trigonometry #dissection #geometry #tiling #mathpuzzle #physicstoy #science #scienceisawesome #mathstoy

Surf's Up!: Another gravity defying creation by Kyle Auga @kyles_kinetics. This well-balanced stainless steel surfer will carve waves in the air for over 15 minutes on one push! The surfer has the curious motion of a 3D physical pendulum- a complex motion which can be broken down into oscillations along two dimensions and rotation about the point of contact. The stick figure plus counterweights and bar structure is designed such that its center of mass is few centimeters below the contact point when at rest. When the sculpture is tipped the center of mass swings under the pivot point in this stable equilibrium condition- no magnets needed to create this physics magic. ➡️ Follow the link in my profile for info on where to get Kyle's kinetic art and other amazing items featured here on @physicsfun #kineticart #KylesKinetics #centerofmass #lowcenterofmass #balancetoy #physicstoy #physicsart #physics #stableequilibrium #equilibrium #oscillations #physicalpendulum #pendulum #torque #restoringforce #desktoy #science #scienceisawesome #newtonssecondlaw #centerofgravity

Double Pendulum: chaotic motion from a simple assembly of two physical pendulums (one attached to the end of the other) with the energy of the system moving frenetically back and forth between the potential energy of gravity to the kinetic energy of motion. Chaotic motion is characterized by extreme sensitivity to initial starting conditions, tiny differences in how the system is released leads to dramatically different outcomes each time. This double pendulum was made by Doug Cvelbar (owner of minicastings.com) where bearings were used at the pivot points to minimize fiction so that the energy takes many minutes to dissipate. ➡️ Follow the link in my profile for info on where to get many of the amazing items featured here on @physicsfun #physicstoy #chaos #chaoticmotion #chaostheory #kineticart #pendulum #doublependulum #physicalpendulum #strangeattractor #science #scienceisawesome

Balancing Bottles: designed such that the combined center of mass of the wine rack and two bottles is directly above the base of the wood rack- because sometimes it takes two bottles of wine to bring life into balance! 🍷😜 ➡️ Follow the link in my profile for info on where to get this and many of the items featured here on @physicsfun #centerofmass #winerack #PasoWines #physics #physicstoy #equilibrium #unstableequilibrium #balance #wine #pasorobleswine #science #scienceisawesome

Stainless Steel Rattleback: prefers to spin counter clockwise. If spun clockwise, a complicated combination of friction, precession, and instability induced vibrations transforms the rotational energy into into rattling (energy of oscillations) and then into rotational energy in the opposite direction! This behavior is related to the asymmetric shape of the bottom of this kind of rattleback, it's somewhat propeller shaped with an "S" curve along the bottom ridge. ➡️ Follow the link in my profile for info on where to get a rattleback and other amazing items featured here on @physicsfun #rattleback #celt #physics #physicstoy #rotation #instability #kineticenergy #torque #friction #angularmomentum #precession #science #scienceisawesome #kineticart

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