Instructional Video Catalog: Title Description
Title: " Distant Voices "
The Normans' use of stirrups caused other armies to search for money to reoutfit. They dug mine shafts deeper; and when the shafts began to flood, scientists investigated vacuums and air pressure. These studies formed the foundations for radio, telephones, and space telecommunications.
Production Date: 1978
Length: 52 minutes
Ordering: NETCHE Member checkout
Non-Members: Not available
Series Title: CONNECTIONS