Coupled Oscillators
[S/M | t | —]
Long pendulums coupled by spring; also a pair of hacksaw blades magnetically coupled.
[In-Depth Description]
- SEE ALSO
- Double Spring Oscillation simulation
OHP Coupled Oscillators
[S | t+ | —]
Magnetically coupled oscillators which can be driven to show two normal modes of vibration; one oscillator can also be tuned.
Three Coupled Oscillators
[S/M | t+ | —]
Three hacksaw blade oscillators electromagnetically driven to demonstrate three normal modes of vibration.
Air Track Coupled Oscillators
[L | t+ | —]
Two or more gliders, coupled by springs, driven to show normal modes of vibration.
Synchronization of Metronomes
[M | t+ | ★★★★]
Non-linear Oscillations
[L | t++ | —]
Air track glider/oscillator with a spring arrangement so that restoring force is proportional to (displacement) 2.
Chaotic Pendulum
[M | t | ★★★]
Coupled, double, physical pendulum executes chaotic motion when non-linear initial conditions are imposed.
'Y' Suspended Pendulum
[M | t | —]
Pendulum with two distinct periods...superposition of normal modes of oscillation.
Sand Pendulum
[L | t+ | —]
Pendulum leaks sand onto black paper leaving a record of rotating ellipsoidal motion.
Ellipsometer
[M | t+ | —]
Physical pendulum with analog x and y displacement readout on storage oscilloscope.
Shattering Wineglass
[L | t+ | ★★★★]
Large speaker with signal generator/amplifier destroys a wineglass; stroboscopic illumination shows vibration mode.
[In-Depth Description]
Barton's Pendulum
[L | t | ★★★★]
Ten coupled pendulums of different lengths; shows resonance and phase.
[In-Depth Description]
Chladni Plates
[S | t+ | ★★★★]
Accumulation of sand at nodes of vibrating plate reveals resonance patterns.
[In-Depth Description]
Big Chladni Plate
[L | t++ | ★★★ ]
Electromagnetically driven plate to show two dimensional modes of vibration.
Vibrations on a Drumhead
[— | — | —]
A driven membrane to show modes of vibration.
[In-Depth Description]
Frahm Resonance Gyroscope
[S | t | ★★]
Vibrational resonances of metal reeds are excited by a spinning gyro as it slows down
[In-Depth Description]
Parametric Excitation
[M | t+ | —]
A pendulum is set into motion by periodically pulling on the string at the proper frequency
Inverted Pendulum
[S | t+ | ★★★]
A physical pendulum finds stability in its inverted position when driven at the proper frequency and amplitude combination.
[In-Depth Description]
Rotating Saddle
[L | t | ★★★★]
Mechanical analog of a Paul Trap particle confinement - a ball is trapped in a time-varying quadrupole gravitational potential.
[In-Depth Description]
Dust Particle Paul Trap
[S | t+ | —]
An electrically charged dust particle is trapped in a time-varying (60 Hz) quadrupole electric field.
Contact Us
Mailing Address: Lecture Demonstration Services, Science Center, Rm B-08A, 1 Oxford Street, Cambridge, MA 02138
Campus Location: Science Center B-08A | Tel: (617) 495-5824 | Email: scidemos-at-fas.harvard.edu