Introduces some of the most influential scientists to study light and sound, and to create such technology as phonographs, telephones, and cameras.How often each day do you make a call? Many people use ... He thought that electricity could be used to create sound or to allow the deaf to hear. He experimented ... Some people just have fun using a metal detector to find aburied treasure.
|Title||:||Pioneers of Light and Sound|
|Publisher||:||Teacher Created Materials - 2007|