Hydrogen can also serve as fuel for internal combustion engines, but unlike with fuel cells, will produce tailpipe emissions and is less efficient. Learn more about fuel cells. The energy in 2.2 pounds (1 kilogram) of hydrogen gas contains about the same as the energy in 1 gallon of gasoline. Because hydrogen has a low volumetric energy density, additional steps are needed to store enough hydrogen onboard fuel cell vehicles to achieve the driving range of conventional vehicles.
Wiktionary (0.00 / 0 votes) Rate this definition: zeppelin (Noun) A type of large German dirigible airship of the early 20th century designed to carry passengers or bombs. Zeppelin (ProperNoun) A German manufacturing company, famed for building the zeppelin airships. Origin: Named after Ferdinand, Count von Zeppelin.
The Zeppelin Field is located east of the Great Road. It consists of a large grandstand with a width of 360 meters (400 yards) and a smaller stand. It was one of Albert Speer's first works for the Nazi party and was based upon the Pergamon Altar. The grandstand is famous as the building that had the swastika blown from atop it in 1945, after Germany's fall in World War II.