Zeppelin airship, LZ 129 Hindenburg
A Zeppelin is a type of rigid-framed airship.
This animations demonstrates the exterior and interior construction of cars, as well as...
The aircraft manufactured by the British de Haviland company was the world's first...
Lighthouses are used as an aid to navigation in coastal waters.
This animation demonstrates how sonar works.
The largest ocean liner at the time of its construction.
A bireme is a type of ancient warship, with a characteristic pointed bow and two decks of...
The double-decked, wide-bodied passenger aircraft can carry more then 500 passengers.
Trolleybuses and streetcars are environment-friendly means of public transportation