An especially powerful whirlpool is known as a maelstrom; one of the more notable maelstroms is the Moskstraumen, an immense network of eddies and whirlpools off the coast of Norway. Several things can lead to the formation of a whirlpool. Most commonly, whirlpools are caused by the meeting of opposing currents. When the currents are strong enough, they can start to wrap around each other, creating a spiral of rapidly swirling water.
In this May 20, 2014, file photo, Cleveland Cavaliers general manager David Griffin, left, and minority owner Jeff Cohen celebrate after the Cavaliers won the top pick in the the NBA basketball draft lottery in New York. The 2015 NBA draft lottery will take place in New York on Tuesday, May 19, 2015.
In the event a lottery pick is traded to another team, the record of the original team (whose pick it was before the trade) still determines eligibility for the lottery, and assignment of chances. Since 2005, with 30 NBA teams, 16 qualify for the playoffs and the remaining 14 teams are entered in the draft lottery.