TIGER

Videos: 49 results
Waves in a Ripple Tank  
Circular waves, linear waves, and waves from two point sources in a ripple tank are shown and described.
Quantum Chemistry
Waves in a Slinky™  
A Slinky™ is used to demonstrate transverse and longitudinal waves, reflection, energy dissipation, interference, and plane polarization.
Quantum Chemistry
Sound Waves  
Wave concepts such as standing waves, resonance and interference can be demonstrated using sound waves.
Transport Properties |
Quantum Chemistry
Standing Waves on a String  
The relationship between frequency, wavelength, and energy absorption for waves on a stretched string is discussed.
Quantum Chemistry
Circular Standing Waves in a Ripple Tank  
Circular standing waves in a ripple tank are demonstrated.
Quantum Chemistry
Standing Waves on Chladni Plates  
In these movies we demonstrate two dimensional standing waves on Chladni plates.
Quantum Chemistry
Waves Consisting of Single Pulses  
Characteristics of single pulse waves include direction of displacement and wave speed illustrated in the following slinky demonstrations.
Quantum Chemistry
Standing Waves on a Wave Demonstrator  
The relationship between frequency and wavelength for standing waves on a 0.90 m short-rod wave demonstrator is explored.
Quantum Chemistry
Standing Waves on a String - Separate Movies  
The relationship between frequency and wavelength for standing waves on a stretched string is demonstrated in a series of separate movies.
Quantum Chemistry
Standing Waves on a Wave Demonstrator (with frequency)  
The relationship between frequency and wavelength for standing waves on a 0.90 m short-rod wave demonstrator is explored. The frequency is displayed at the bottom of the screen.
Quantum Chemistry
Waves in a Wave Demonstrator — Wave Speed, Reflection, and Interference  
Wave speed, frequency, wavelength, and reflection are illustrated with a 0.90 m (long-rod, low wave speed) wave demonstrator.
Quantum Chemistry
Wave Diffraction, Interference, and Scattering  
Diffraction, interference and scattering - properties common to all wave phenomena - are demonstrated with waves in a ripple tank.
Quantum Chemistry
Colors of Elements in a Flame  
Aqueous solutions of various compounds are sprayed into a Meeker burner flame from an atomizer.
Atomic Properties / Structure |
Descriptive Chemistry |
Spectroscopy
Paramagnetism: Compounds  
Vials of a number of compounds (NaCl, MnSO4, FeSO4, CoCl2, NiSO4, ZnSO4, K4Fe(CN)6, [Co(NH3)6]Cl3, [Ni(NH3)6]Cl2, and H2O) are hung from a thread. When a magnet is brought near, some of the vials are attracted.
Magnetic Properties |
Atomic Properties / Structure
Paramagnetism: Oxidation States of Manganese  
Manganese(III) oxide, with 4 unpaired electrons per Mn atom, is more strongly attracted to a magnet than is manganese(IV) oxide, with only 3 unpaired electrons per Mn atom. Potassium permanganate, a compound of Mn(VII), has no unpaired electrons and is not attracted to a magnet.
Magnetic Properties |
Atomic Properties / Structure
Electronic Structure-Periodic Table  
Reactions exploring the concepts of atomic structure.
Atomic Properties / Structure |
Descriptive Chemistry
Ferrimagnetism  
Precipitation reactions are used to produce iron(III) oxide (Fe2O3 called hematite) and mixed iron(II)/iron(III) oxide (Fe3O4 called magnetite). The particles in the slurry of hematite are not attracted to a magnet, but the particles in the slurry of magnetite are.
Magnetic Properties |
Atomic Properties / Structure
Paramagnetism: Nitrogen and Oxygen  
A magnet is shown to strongly attract a pair of metal tongs. The magnet has no visible effect on liquid nitrogen, but when pale blue liquid oxygen is poured near the poles of the magnet, it shows definite attraction.
Magnetic Properties |
Atomic Properties / Structure |
Liquids
Ferrofluid  
A magnet placed just below a dish containing ferrofluid generates an array of spikes in the fluid.
Liquids |
Magnetic Properties |
Metals |
Atomic Properties / Structure
Bonding  
Reactions and demonstrations that explore the concepts of bonding.
Molecular Properties / Structure |
Atomic Properties / Structure
Energy Dissipation, Constructive and Destructive Interference  
Important wave phenomena include energy dissipation (wave damping) and wave interference as seen in the following slinky demonstrations.
Quantum Chemistry
Wave Trains  
Examples of transverse wave trains in a Slinky™ are shown.
Quantum Chemistry
Interference in a Wave Demonstrator  
Constructive and destructive interference are illustrated with a 0.90 m long-rod wave demonstrator.
Quantum Chemistry
Unique Nodal Patterns at Resonant Frequencies - Square Plate  
The development of nodal patterns on a square Chladni plate at resonant frequencies is shown. The wave driver is set at a resonant frequency and sand is scattered on the Chladni plate forming a resonance pattern characteristic of that frequency.
Quantum Chemistry
Specific Frequencies - Round Plate  
Unique nodal patterns at several resonant frequencies for a round plate are shown.
Quantum Chemistry
Background Information for the Photoelectric Effect  
This section provides background information about the apparatus used for the photoelectric effect demonstration.
Quantum Chemistry
The Photoelectric Effect  
The photoelectric effect is demonstrated.
Quantum Chemistry
Light as a Particle: Photoelectric Effect  
The discovery of the temperature dependence of the spectrum of an incandescent light source and the discovery of the photoelectric effect led to the characterization of the particle-like properties of light. Here we demonstrate these two phenomena.
Quantum Chemistry
Light and Electrons  
Some wave-like and particle-like properties of light and some wave-like and particle-like properties of electrons are shown.
Quantum Chemistry
Neon Signs  
Here are images of gas discharge lamps filled with the noble gases helium, neon, argon, krypton and xenon.
Quantum Chemistry
Isotopes: Heavy Water Ice Cubes  
An H2O ice cube is shown to float in a beaker of liquid water, while an ice cube of D2O (heavy water) is shown to sink in liquid water.
Hydrogen Bonding |
Isotopes |
Physical Properties |
Atomic Properties / Structure |
Water / Water Chemistry
Resonance Boxes  
Conditions for energy transfer between resonance boxes are discussed.
Quantum Chemistry |
Transport Properties
Light as a Wave: Reflection, Diffraction, Polarization, and Absorption  
The following demonstrations illustrate diffraction, scattering, and absorption of light.
Quantum Chemistry |
Physical Properties
The Electron as a Particle: Crookes and Cathode Ray Tubes  
The Crookes tube and various cathode ray tubes demonstrate the electron as particle.
Quantum Chemistry |
Applications of Chemistry
Cloud Chamber  
Charged radioactive particles produce condensation trails in a cloud chamber.
Nuclear / Radiochemistry |
Quantum Chemistry
Hydrogen Balloon Explosions  
Balloons containing various substances and hydrogen are exploded, revealing characteristic flame colors. In all cases except one, the substance had been mixed with methanol and water.
Descriptive Chemistry |
Spectroscopy
Spectroscope  
The use of a hand-held spectroscope is demonstrated.
Laboratory Equipment / Apparatus |
Spectroscopy
Spectronic 20 Spectrophotometer  
The use of a Spectronic 20 spectrophotometer is demonstrated.
Laboratory Equipment / Apparatus |
Spectroscopy
Single-Beam Recording Spectrophotometer  
Techniques involved in using a single-beam UV/visible spectrophotometer are demonstrated.
Laboratory Equipment / Apparatus |
Spectroscopy
Spectroscopy  
Measuring electromagnetic emissions and transmissions with several different instruments are demonstrated or described.
Laboratory Equipment / Apparatus |
Spectroscopy
Main Group Metals  
Various compounds of main group metals mixed with methanol are sprayed into the flame of a Bunsen burner.
Descriptive Chemistry |
Spectroscopy
Sprayed into Burner Flame  
Saturated methanol solutions of approximately 1.0 M were sprayed into the flame of a Bunsen burner. The spray produces characteristic atomic emission colors.
Descriptive Chemistry |
Spectroscopy
Main-Group Metals  
Videos of flames with a Meker burner for main-group metals are shown.
Descriptive Chemistry |
Spectroscopy
Metalloids  
Videos of flames with a Meker burner for metalloids are shown.
Descriptive Chemistry |
Spectroscopy
Other Main-Group Metals  
Balloons containing hydrogen and other main-group metals are exploded.
Descriptive Chemistry |
Spectroscopy
Flame Colors  
Substances are introduced into a flame in various ways. The color of the resulting flame depends on the substance. These are organized by method/technique.
Descriptive Chemistry |
Spectroscopy
Transition Metals  
Various chlorides of transition metals mixed with methanol are sprayed into the flame of a Bunsen burner.
Descriptive Chemistry |
Spectroscopy |
Transition Elements
Closeup Videos of Flames from Aqueous Solutions  
Aqueous solutions of common compounds are introduced via aerosol to flame, producing their characteristic emission colors.
Descriptive Chemistry |
Spectroscopy |
Aqueous Solution Chemistry
Exploding Hydrogen Balloons  
Explosions of hydrogen-filled balloons are demonstrated.
Descriptive Chemistry |
Spectroscopy |
Water / Water Chemistry