Silent sound
Subtitle: the world of ultrasonics
By: by David C. Knight.
Publisher: Morrow
Published: 1980
Place of publication: New York
Language: eng
Number of pages: 93
Subjects: Ultrasonics -- Juvenile literature.; Ultrasonics.; Sound.
Description: Examines extremely high frequency sound known as ultrasound and discusses its use in navigation, industry, and medicine.
Notes: Includes index.