Gourt > Science > Technology > Aerospace > Aeronautics > Lighter Than Air (3)
Lighter than air gases are buoyant in air because they have a density that is less than the density of air. Lighter than air gases are used to fill balloons, airships, and aerostats. (Heavier than air aircraft include aeroplanes and helicopters.)
Hot air
The density of a gas can be reduced by raising its temperature. Heated air is widely used as a lifting gas in hot-air balloons. (The gas in a hot-air balloon is not only heated air, but also includes the products of combustion from the balloon's burner.)
Hot air balloons have the advantage of straightforward lift control. To increase lift, more heat is applied. To decrease lift slowly, the hot air is allowed to cool. To decrease lift quickly, hot air is released (vented). However, unlike balloons using low molecular mass gases (see below), hot air balloons require nearly continuous burning of fuel in order to remain aloft. (See Hot air balloon.)
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@Brilliantcrank Close. I discovered an element that is both tasty as prosciutto and lighter than air.
mikeindustries (Mike Davidson) Thu, 07 Jan 2010 06:41:57 -0000
@Brilliantcrank Close. I discovered an element that is both tasty as prosciutto and lighter than air.
Feels lighter than air - had a major prayer answered AND was told (by Tira) "eat i-cream cone it good for you!"
mommytanya (mommytanya) Thu, 07 Jan 2010 03:24:28 -0000
Feels lighter than air - had a major prayer answered AND was told (by Tira) "eat i-cream cone it good for you!"
If you're lighter than air, where does the time go if you're falling down?
froshpie (froshpie) Thu, 07 Jan 2010 01:46:27 -0000
If you're lighter than air, where does the time go if you're falling down?
Your a beautiful, graceful tree, stretching...and a giant turkey lands in your branches! Aww and just when you were Lighter Than Air!
laughterandjoy (heidi heyns) Thu, 07 Jan 2010 00:55:00 -0000
Your a beautiful, graceful tree, stretching...and a giant turkey lands in your branches! Aww and just when you were Lighter Than Air!
Halfbakery: Lighter than air support products: Actually when I first read the title of this idea, I interpreted.. http://bit.ly/5xjZFi
litopchoice1 (Shawn O'Brady) Wed, 06 Jan 2010 21:44:31 -0000
Halfbakery: Lighter than air support products: Actually when I first read the title of this idea, I interpreted.. http://bit.ly/5xjZFi
@Swoopy E-tailers could lead the way, offering delivery of purchases exclusively by lighter-than-air craft. Amazon by Zepplin, w00t!
cmdln (Th. 'cmdln' Gideon) Wed, 06 Jan 2010 16:20:16 -0000
@Swoopy E-tailers could lead the way, offering delivery of purchases exclusively by lighter-than-air craft. Amazon by Zepplin, w00t!
Airship - Provides directory concerning lighter-than-air craft. Features announcements, FAQ, feature film and documentaries list, photos and details for many ships.
Meta Description: [ AIRSHIP: The Home Page for Lighter-Than-Air Craft.
Provides information concerning lighter-than-air craft. Serves as a hub to related sites.
Acts as a starting point in your own investigations. Created Spring 1995. ]
Airship and Blimp Resources - Information about airships, emphasis on contemporary airship design, construction and operation. FAQs, image galleries, manufacturers, reference and links.
Meta Description: [ The Airship and Blimp Resources
provide information about airships in general, with a special
emphasis on contemporary airship design, construction and operation.
The Airship Resources have been THE reference on airships since March
1995. ]
Airships - Features photos of the Hindenburg, Graf Zeppelin, Akron, Shenandoah, Los Angeles, and other dirigibles. Includes brochures, collectibles, webring and contacts.
Meta Description: [ Airships: The Zeppelin history and photo website, featuring the Hindenburg, Graf Zeppelin, Akron, Macon, Shenandoah, Los Angeles, and other great dirigibles. ]
Navy Lakehurst Historical Society - Preserving the heritage of the New Jersey naval airship station. Membership and contact information, historical articles, photo galleries.
Meta Description: [ Navy Lakehurst Historical Society is a non-profit organization dedicated to preserving the distinguished history of Naval Air Station Lakehurst, New Jersey, USA, Navy Lakehurst Historical Society is a non-profit organization dedicated to preserving the distinguished history of Naval Air Station L... ]
Picture Gallery Historical Airships - Provides photos of various dirigibles.
The Airship Heritage Trust - Organization dedicated to preserving airship history. Includes membership, online shop, detailed articles, dirigible descriptions, plans and photos.
The Height Climbers - Features the WWI Zeppelins concentrating on the Height Climbers. Images, stories, webrings and links.
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The Hugo Eckener Virtual Research Center - Designed for those interested in airship history, research and development. Links, articles, webring and mail list.
Zeppelin - Features the airships built by Zeppelin Luftschifftechnik in Germany. Provides photos, articles, music, lists, discussions, tools and links.
Zeppelin Library - Facts and photos of the different uses for the German rigid airships. Includes use in war, models, references and links.
Zeppelins - Features photos and details about rigid dirigibles including WWI ships.
Meta Description: [ Airships: The Zeppelin history and photo website, featuring the Hindenburg, Graf Zeppelin, R100, R101, and other great war Zeppelins. ]
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