n7axw wrote:And Weird Harold, there is truth to what you are saying, but I don't think it is completely true.
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However here on earth, steam was developed for economically driven reasons on the civilian side. So also was the internal combustion engine, the air plane and much more. In fact, the need for efficiency to drive costs down to enhance profit has probably been the biggest driver of research overall.
I don't think you're reading the same history books I am.
I can't speak positively about the rest of the world, but in the US, Steam -- specifically rail and maritime applications -- were driven by government subsidies and the Civil War. Military needs drove the development of cross-country rail networks (and later the freeway system) and any economic benefits were secondary.
The internal combustion engine field in the US got a big boost from the development of the Liberty Engine and the network of US highways that preceded the freeway system as designated military access routes.
The airplane was a fragile toy from it's invention to the first world war. During the first world war, the airplane went from 60MPH single engine biplanes to 200MPH+ multi-engined transports and bombers (Zeppelins also progressed from one and two seaters to near the peak of airship designs.) Without war surplus JN4 trainers and war surplus liberty engines, Aviation would have died in the US for lack of planes and pilots. Government mail contracts subsidized early passenger service, or that too would have never taken off.
At the beginning of WWII, war and preparations for war (eg a cold war) only added another 100MPH to airplane speeds in Europe and Asia (Japan) but hardly affected the US -- although military requirements did produce the B-17 and B-24 heavy bomber designs and the C47/DC-3 inventory.
During WWII aircraft went from 250-300MPH to 600-700 MPH and fatal encounters with the Sound Barrier and compressibility.
The Korean Conflict saw another burst in aircraft capability and SAC's need for a jet tanker led to the Boeing 707/KC-35 design. A losing design for the C-5 competition by Boeing led to the 747 Jumbo -- which nobody thought would be economical at first.
There are a few advances in aeronautics that weren't driven by the Cold War with the Soviet Bloc, but almost all aeronautic advancement prior to 1950 or so took place in the five years of WWI and five years of WWII -- plus some slower developments in the interwar years -- was driven by military requirements and contracts.
Government and/or military requirements have been behind the expansion of everything from food-preservation to the internet; it may not have been responsible for the inventions, but government has funded most of the infrastructure to support general use -- usually justified as "military necessity."