Icebreaker
An icebreaker is a special type of ship. Its special features include extra powerful motors and a very strong hull designed to cut through thick sheets of ice floating on oceans and lakes.
Icebreaker Media
USCGC Healy (WAGB-20) at right breaks ice around the Russian-flagged tanker Renda, 250 miles (400 km) south of Nome, Alaska.
Two teams of horses and a team of workers drag an ice breaker through the canals of Amsterdam in 1733.
A 17th-century Russian koch in a museum
City Ice Boat No. 1 at the Delaware River. The paddle steamer was built in 1837.
Yermak is considered the first true modern sea-going icebreaker.
The CCGS Louis S. St-Laurent is a Canadian Coast Guard icebreaker.
A Soviet stamp of the Lenin, the world's first nuclear-powered icebreaker.
Finnish icebreaker Otso escorting a merchant ship in the Baltic Sea
A United States Coast Guard icebreaker in McMurdo Sound in support of Operation Deep Freeze.