Standing Waves and Resonance

Standing Waves can resonate in a pipe. The resonance occurs in an open-closed pipe when an odd integer number of quarter wavelengths fit exactly in the length of the cavity of the pipe. This animation illustrates what happens when a plunger is used to "scan" the effective length of a pipe driven by a tuning fork. Three different cases are shown for a set of increasing frequencies.
 

Standing Waves and Harmonics

The harmonic frequencies of a system depend upon the geometry of that system. This animation shows the first five harmonics for both a pipe closed at both ends as well as a pipe open at one end. The animation ends with a wave which is actually comprised of a combination of those first five harmonics for each system.

 

Galileo and Motion

Galileo studied the motion of objects rolling down an inclined plane, and made note of patterns in those motions which he extrapolated to the motion of falling objects.

Other animations by Penn State Schuylkill

Rare Type 1a Supernova Progenitor System Observed

The multi-institutional Palomar Transient Factory (PTF) team has released the first-ever direct observations of a Type 1a supernova progenitor system. Astronomers have collected evidence indicating that the progenitor system of a Type 1a supernova, called PTF 11kx, contains a red giant star. This artist's conception shows a binary star system that produces recurrent novae, and ultimately, the supernova PTF 11kx. A red giant star (foreground) loses some of its outer layers though a stellar wind, and some of it forms a disk around a companion white dwarf star. This material falls onto the white dwarf, causing it to experience periodic nova eruptions every few decades. When the mass builds up to the near the ultimate limit a white dwarf star can take, it explodes as a Type Ia supernova, destroying the white dwarf. (Animation credit: Romano Corradi and the Instituto de Astrofísica de Canarias)

 

Wave particle duality

Source: http://www.toutestquantique.fr
Copyright Bobroff 2012

 

Tunnel effect animation

Quantum tunnel effect and STM tunneling microscope.
Copyright Bobroff 2012
Source: Tout est quantique

Quantization in quantum physics

The way a quantum wave is quantized in a box.
Copyright Bobroff 2012.
Source: Tout est quantique

Induction Motor How it works

This is the basic principle of how induction motors work.

 

CERN news : ALPHA2 ANTIMATTER

CERN experiment makes spectroscopic measurement of antihydrogen.

 

Alpha, Beta and Gamma - which objects can they travel through?

How particles are able to travel through certain objects.

Engine Governor

A short animation showing how and why the centrifugal governor was invented by James Watt. The centrifugal governor was required to assist i the development of machines and technology and was necessary for the industrial revolution to occur.

An Application of Faraday's Law of Induction

This is an illustration of an application of Faraday's Law to a single loop moving through a magnetic field.

Other animations by Penn State Schuylkill

3 shorts animations about superconductivity

Conductor vs superconductor:



Meissner effect:



Formation of a superconducting state:

Newton's Laws of Motion

Newton's three laws of motion.

The Stern-Gerlach experiment

A beam of particles moves through a magnetic field.   Quantized angular momentum.

3 Phase Rectifying Circuit

This animation shows the flow of current in 3-phase AC to DC rectification circuit, a well as a plot of the three input currents and the output current.

Other animations by Penn State Schuylkill

Uniformly accelerated motion

A green ball is thrown upward. We show its position vector, position vs time graph, velocity vector, velocity vs time graph, acceleration vector, acceleration vs time graph and energies (mechanical, potentiel and kinetic) vs time graph.

Other animations by Yves Pelletier

Electromagnetic induction

These animations show a magnet approaching a conducting coil, then getting farther. The magnetic field lines caused by the magnet change color when they get through the coil. The inducted current in the coil is represented by red spheres in motion (they move in the direction of conventional current).

Other animations by Yves Pelletier

Coriolis effect

The merry-go-round analogy to explain Coriolis effect.

Eureka! Episode 28 - Heat as Energy

Heat is produced whenever there is movement and friction between two objects. Since movement is a form of energy, it follows that heat must also be a form of energy.

Other Eureka episodes