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The Ice Breaker Tournament (also called the Ice Breaker Invitational or the Ice Breaker Cup) is a college Division I men's ice hockey tournament played annually at the start of each season. [ 1 ] The tournament began play in 1997 as an exhibition [ 2 ] and was created as an early-season showcase for top-ranked teams from four separate conferences.
Yamal can break ice while making way either forwards or backwards. Yamal is one of the Russian Arktika family of icebreakers, the most powerful icebreakers in the world. These ships must cruise in cold water to cool their reactors [failed verification], so they cannot pass through the tropics to undertake voyages in the Southern hemisphere. [3]
Polar-class icebreakers USCGC Polar Star (WAGB-10), USCGC Polar Sea (WAGB-11) are heavy icebreakers operated by the United States Coast Guard (USCG). These cutters, specifically designed for icebreaking, have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness of their icebreaking.