The first ships were made of tree trunks and used small sails. The principle of Archimedes explains flotation. Energy from human power, wind, or steam is necessary to move a boat.
The three main uses of boats throughout history are fishing, warfare, and transportation. Transatlantic cruise liners are the largest passenger ships. Tanker ships transport cargo.
Hydroplane development started at the same time as airplanes. Hovercrafts can move over land and water.
The first canoes and rafts were built 20,000 years ago. Boats float by displacing water greater than their weight. Ships are used for fishing and transportation.
Credits: Sea Transport
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This program covers the story of ships through time, their function, and and their purpose. Topics include: triangular sails, how ships function, the Principle of Archimedes, the first propellers, different types of vessels, and recent marine inventions such as hydrofoils and hovercrafts.
Length: 15 minutes
Item#: BVL155117
Copyright date: ©2013
Closed Captioned
Prices include public performance rights.
Not available to Home Video, Dealer and Publisher customers.
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