Speed Of Light in Air and Water

Year Published: 1960

Creator: ESI

Format: 16mm

Color: B&W

Sound: sound

Description: Shows Dr. William M. Siebert outdoors at night as he measures the speed of light in air using a spark-gap, parabolic mirrors, a photocell, and an oscilloscope. In the laboratory he compares speed in air and in water using a high speed rotating mirror. For more info on PSSC films and their history, visit http://www.afana.org/psscfilms.htm