1001 Space Earth Nature History Human World Science and Technology Chemistry Materials Force and Energy Heat and Light Electricity and Magnetism Industry Machines Electronics and Computers Cars and Trucks Railways Ships Aircraft Fishing and Agriculture Undersea Exploration

Choose a Page:How far did ancient ships travel?Who built the earliest seagoing ships?How do ships' navigators find thei...What was a trireme?In what type of ship did Columbus ...What was a galleon?Which was the largest passenger liner?*How does a ship made of steel stay...*What is a modern cruise liner like?What is the largest warship afloat...How does a ship's propeller work?What kind of engines do modern shi...How powerful is a modern aircraft ... How does a ship made of steel stay afloat? A steel ship floats because its hull displaces (pushes away) a weight of water equal to its own weight. Displaced water causes an upthrust - a force that pushes the hull upward and keeps the ship afloat. Supertankers are made of steel   Previous: Back Book: 1001 Section: Science and Technology Chapter: Ships