Tugboat, or Tug, a boat with a powerful engine used to tow or push ships and barges. Tugboats are usually small and are used mainly in harbors, rivers, and canals. They are generally about 100 feet (30 m) long and about 25 feet (8 m) wide. Most tugs use diesel or diesel-electric engines of up to about 2,000 horsepower. Larger, oceangoing tugs, up to about 300 feet (90 m) long, are used to aid disabled ships.
The idea of anyone messing with your mind probably makes you nervous. But what if doctors could put that power to good use without drilling a hole through your skull?
The Panzerkampfwagen VI Tiger II was the most massive and heavily armored tank of World War II. This tank carried an 88-mm gun that was capable of penetrating 7.2 inches of armor. Learn about the Panzerkampfwagen VI Tiger II.