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Aerospace Engineering Online: Technology Update (July 2006)
Error 404--Not Found
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
10.4.5 404 Not Found
The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent. If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.
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Error 404--Not Found
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
10.4.5 404 Not Found
The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent. If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.
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Technology update
July 2006
Cool research into turbulence
From the earliest days of flight, wake vortices and the turbulence they cause have created problematic aerodynamic effects for aircraft and aerospace designers. Research continues into turbulence, its effect, and how to avoid or mitigate it. In fact, turbulence remains "the last great unsolved problem of classical physics," believes George Pickett, Professor of Low Temperature Physics at the UK's Lancaster University. To try and find that solution, he and his team, who are world leaders in the field of ultra-cold physics, are now using superfluids—generally regarded as nothing more than a curiosity—as a central part of research into a greater understanding of turbulence.
read full story*
* This is a .pdf file. You’ll need the Adobe Acrobat Reader to view it.
Error 404--Not Found
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
10.4.5 404 Not Found
The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent. If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.
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