vehicles

Sailboats or sailing ships are "propelled partly or entirely by sails" that catch the wind. Sailboats are also known as sloops, cutters, catboats, dinghies, ketches, schooners, and yawls, depending on their design... Read more

The tank is a heavily armoured military combat vehicle that crawls along on tracks. The armor protects the soldiers inside. The chain-like tracks allow it to travel over difficult terrain. Tanks are often heavily armed with very large guns... Read more

The canoe is a lightweight boat that is powered and steered by paddles. Canoes have been used all over the world for millennia. The native peoples of the Arctic used canoes called kayaks, that consisted of animal skins stretched over wooden or bone frames. Dugout canoes - those carved from a fallen log... Read more

Police are "officers representing the civil authority of government." They typically 'maintain public order and safety, enforce the law, and prevent, detect, and investigate criminal activities.'... Read more

Indy cars are a special type of racecar. The cars are open-wheeled and single-seated, similar to Formula One cars. Races may be held on circular tracks, streets, or off-road... Read more

The motorcycle or motorized bicycle was invented in Britain in 1884. In the time since many different types of motorbikes have been developed for different uses. The dirt bike is one of them... Read more

The Vikings were a seafaring people known for being fierce warriors. They raided villages and built colonies throughout Europe - and according to some researchers, as far away as North America - during the ninth to eleventh centuries. The term "Viking" meant "pirate." Vikings were also known as Norsemen or Northmen... Read more

A helicopter, also called a chopper, is a type of aircraft that uses a rotor, or spinning blade, to take off and land vertically. Unlike airplanes, helicopters don't need a runway. Other rotorcraft include convertiplanes, autogiros or autogyros, and V/STOL aircraft... Read more