<P> Jet engines do not experience carb icing, but recent evidence indicates that they can be slowed, stopped, or damaged by internal icing in certain types of atmospheric conditions much more easily than previously believed . In most cases, the engines can be quickly restarted and flights are not endangered, but research continues to determine the exact conditions which produce this type of icing, and find the best methods to prevent, or reverse it, in flight . </P> <P> Ice also plays a central role in winter recreation and in many sports such as ice skating, tour skating, ice hockey, bandy, ice fishing, ice climbing, curling, broomball and sled racing on bobsled, luge and skeleton . Many of the different sports played on ice get international attention every four years during the Winter Olympic Games . </P> <P> A sort of sailboat on blades gives rise to ice yachting . Another sport is ice racing, where drivers must speed on lake ice, while also controlling the skid of their vehicle (similar in some ways to dirt track racing). The sport has even been modified for ice rinks . </P> <Ul> <Li> Ice cubes or crushed ice can be used to cool drinks . As the ice melts, it absorbs heat and keeps the drink near 0 ° C (32 ° F). </Li> <Li> Ice can be used to reduce swelling (by decreasing blood flow) and pain by pressing it against an area of the body . </Li> </Ul>

Where did the term break the ice come from