In quantum mechanics, it is possible for a particle to tunnel through a potential barrier because its wave function has a small but finite value in the classically forbidden region. Here we use FTIR as an optical analog of this quantum...
In quantum mechanics, it is possible for a particle to tunnel through a potential barrier because its wave function has a small but finite value in the classically forbidden region. Here we use FTIR as an optical analog of this quantum...
When a magnetic field is applied perpendicular to a conductor carrying current, a potential difference is observed between points on opposite sides of the conductor. This happens because the magnetic field deflects the moving electrons...
In explaining the electron orbits in the Bohr atom, de Broglie's principle of particle wave duality allows you to treat the electrons as waves of wavelength nλ = 2πr where r is the radius of the orbit. Then the only orbits allowed are those...
A physical pendulum finds stability in its inverted position when driven at the proper frequency and amplitude combination.
The physical pendulum is a 45 cm x 2 cm x 6 mm (1/4") strip mounted on a ball-bearing pivot and can rotate 360 degrees...
Wave/particle duality observed in Young's double slit experiment with camera sensitive to individual photons.
What it shows:
In this demonstration we perform the double-slit interference experiment with extremely dim light and show that even when the light...
Aluminum/Uranium and SF6/Air/Helium density comparisons.
The concept of mass per unit volume, aka density, is shown by having several different substances on hand for comparison. In solid materials, we have equal size chunks1 of aluminum (2...
A beam of cathode rays (electrons) impinging on a paddle wheel cause it to spin and travel down the vacuum tube.
A paddle wheel is suspended by its axle inside a Crookes tube so that when the paddle vanes spin the entire wheel is free to...
3 cm microwaves and prisms made of plastic beads demonstrate total internal reflection in one prism, and coupling of the evanescent wave to a second prism. An audio signal corresponds to the one kiloHertz modulation of the microwaves.
The prisms are made...
The thermal radiation emitted from a black body is temperature dependant. The tungsten filament of a bulb approximates a black body, and by increasing the current through the bulb, its temperature rises and so its color spectrum shifts to...
