Please be Seated Good Vibrations Physics is Phun

Please be Seated

Good Vibrations Physics is Phun November 2006

Aims or Goals of Science: 1. Learn all there is to know about the universe. 2. Rearrange it to suit our needs.

Three Main Sciences: If it bites and scratches, it’s biology. If it stinks and pops, it’s chemistry. If it doesn’t work, it’s physics.

Life without physics is like a fish without a bicycle. -feminist wisdom

Vibrations A vibration is a motion that cannot make up its mind which way it wants to go.

Periodic Motion

Simple Harmonic Motion

SHM as Projection of Uniform Circular Motion

Hooke’s Law Vibrations in crystal lattice

Other examples of Simple Harmonic Motion

RESONANCE: 1. Driven and Damped Harmonic Motion 2. Coupled resonance

Chaos in Driven and Damped SHM UM Prof. James Yorke

Gravitational Waves: Prof. Joe Weber, UMD

Laser Interferometer Gravitational Wave Observatory

LIGO Gravity Wave Response

LIGO Artist’s View

LIGO Hanford Observatory

Ligo Livingston Observatory

Listening for Gravitational Waves by Peter Shawhan, Assistant Professor of Physics University of Maryland Gravity Experiment Research Group Article in Departmental Newsletter, The Photon, October 2006 http: //www. physics. umd. edu/news/photon/iss 50/researchspotlight. htm

Laser Interferometer Space Antenna

LISA in Solar System

LISA Satellite Configuration

Laser Interferometer Space Antenna LISA Home Page at the Jet Propulsion Laboratory

Combinations of Simple Harmonic Motions

Applications to Sound and Light

BAD Vibrations

Millenium Bridge Pedestrian suspension bridge across the Thames river in London

The End See you in January! We are on the web at http: //www. physics. umd. edu/lecdem/ Animated Gifs compliments of bellsnwhistles. com