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...t is not constant. It is therefore necessary to control the altitude of an airship by controlling its buoyancy: '''buoyancy compensation'''. ...an average consumption of 290 kg/100 km). During the landing the airship had to release approximately 24,000 cubic meters of hydrogen to balance the ...

|[[Rigid airship]] |[[Rigid airship]] ...

...tle=Balloon flight - Historical development|url=https://www.britannica.com/technology/balloon-flight|access-date=2021-08-17|website=Encyclopedia Britannica|langu ...uels, Synthetic, Gaseous Fuels |title=Kirk‐Othmer Encyclopedia of Chemical Technology |year=2000 |last1=Speight |first1=James G. |isbn=9780471484943 }}</ref> and ...

...rchive-url=https://web.archive.org/web/20210305080732/https://www.airforce-technology.com/projects/akash-surface-to-air-missile-system/|url-status=live}}</ref> [[File:Airship Delta.jpg|thumb|The pre-World War 1, British Army airship ''Delta'', fitted with swiveling propellers]] ...

...ropeller slipstream by an air scoop.}}<ref>{{cite book | title=The British Airship at War, 1914–1918 | publisher=Terence Dalton | author=Abbott, Patrick | yea ...|date= June 27, 2018 |author= Kevin Michaels |work= Aviation Week & Space Technology}}</ref> ...

...rwar period]] through to the 1950s with [[Retrofuturism|retro-futuristic]] technology<ref name=dailydot>{{cite web|url=http://www.dailydot.com/fandom/dieselpunk- ...vel)|Leviathan]]'' (2009) qualifies as steampunk despite the fact that the technology it depicts includes [[diesel engine]]s: ...

{{Short description|Military technology to make personnel and material less visible}} ...1924000011702 |s2cid=108545502 }}</ref> which covers a range of [[military technology|methods]] used to make personnel, [[Stealth aircraft|aircraft]], [[Stealth ...

...nt potential in their applications. The criteria for this list is that the technology must: # Exist in some way; purely [[Hypothetical technology|hypothetical technologies]] cannot be considered emerging and should be cov ...

...requirements.<ref name="Commission2008">Dwight D. Eisenhower and Science & Technology, (2008). Dwight D. Eisenhower Memorial Commission, [https://web.archive.org ...me=439 |issue=9248 |pages=67–68 |url=https://www.economist.com/science-and-technology/2021/06/03/a-growing-number-of-governments-hope-to-clone-americas-darpa |ac ...

...[[subgenre]] of [[science fiction]] that incorporates [[retrofuturistic]] technology and [[Applied arts|aesthetic]]s inspired by, but not limited to, 19th-centu ...sentations of such technology as [[steam cannon]]s, [[lighter-than-air]] [[airship]]s, [[analog computer]]s, or such digital [[mechanical computer]]s as [[Cha ...

...ient [[Mesopotamia]] (modern Iraq) and then appeared in [[ancient Egyptian technology]]. Construction cranes later appeared in [[ancient Greece]], where they wer ...f name="Sayed" /><ref>{{cite book |last1=Faiella |first1=Graham |title=The Technology of Mesopotamia |date=2006 |publisher=[[The Rosen Publishing Group]] |isbn=9 ...