image credit: Susan Scwartzenberg, © Exploratorium; image source; larger image

Bubble Colors

This Exploratorium photo shows the colored bands produced by a soap film. To learn what causes these patterns, see Bubble Colors. For more, visit Hyperphysics' Soap Film Interference.

(This feature was updated on July 20, 2013.)

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Wave Interference Applet

For a simple demonstration of wave superposition, check out this animation from the University of California, Irvine. To control the motion of the waves yourself, see Wave Interference Applet, by Zona Land.

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image credit: Ricky Geautreaux, Aero-Data Inc., Baton Rouge, LA; image source; larger image

Science of LIGO

Here's one of the world's longest optical interferometers--the LIGO observatory at Livingston, LA--built to detect gravitational waves. To learn about LIGO and gravitational waves, visit Science of LIGO.

(This feature was updated on July 20, 2013.)

Gravity: Making Waves

For an overview of Einstein's theory of gravity and the attempts to detect gravitational waves, check out the video Gravity: Making Waves.

(This feature was updated on 7/20/2013.)