| Before lifting off on your scientific inquiry into ballooning and lighter-than-air flight, it helps to have some background information about the history of ballooning. |
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| The invention of lighter-than-air vehicles occurred independently of the development of aircraft. |
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| In 1919, a British airship made the first transatlantic flight for a lighter-than-air vessel. |
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| Airship, also called dirigible or dirigible balloon, a self-propelled lighter-than-air craft. |
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| No matter what its form, try anything enveloped in this lighter-than-air coating. |
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| Because helium does not burn readily like hydrogen, it is a popular gas for lighter-than-air balloons. |
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| Balloons and airships that rely on hot air or on lighter-than-air gases such as helium or hydrogen for their lift. |
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| The present invention relates generally to the field of lighter-than-air ships and more particularly to a airship that uses hydrogen as a lift gas. |
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| Although the days of the Zeppelins have passed, lighter-than-air craft remain in the public eye because of their use in televising sporting events. |
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| Yost also contributed to the advancement of the sport of ballooning and lighter-than-air flight. |
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| One of helium's better-known, but less commercially important, applications is in lighter-than-air craft, such as dirigibles, and in weather and research balloons. |
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| First-place honors, though, went to the lighter-than-air gnocchi. |
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| Hydrogen was once used for inflating lighter-than-air vessels, such as dirigibles and balloons, but now helium is generally used because it is nonflammable. |
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| Essentially, an aerostat is a lighter-than-air object that can be raised significantly above ground while remaining in a relatively fixed position. |
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| Uncrewed lighter-than-air vehicles exploit the drone's freedom from the constraints of human endurance. |
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