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.

Error 404--Not Found

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.

Technical Innovations

June 2008

Cat sets plan of attack on ac electric drive

"When we gave Caterpillar engineers the opportunity to design a brand new tractor from the ground up, two things happened," said David Nicoll, Commercial Manager, Track-type Tractors. "First, they were very excited and passionate about it because they don't get that opportunity very often. Second, they did some amazing things."
read full story*

April 2008

Nanonails enable electrically tunable surfaces

With a surface composed of tightly packed nanostructures that resemble tiny nails, thus the term "nanonails," University of Wisconsin-Madison engineers and their colleagues from Bell Laboratories have created a material that can repel almost any liquid. But with a jolt of electricity, the liquid on the surface slips past the heads of the nanonails and spreads out between their shanks, wetting the surface completely.
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March 2008

Ceramic coatings—from DPFs to steam-powered car

To operate efficiently, diesel particulate filters (DPFs) need to reach their high operating temperatures quickly if they are to meet legislative requirements for reduced emissions levels. Zircotec thermal coating has been developed to reduce heat loss in diesel exhaust systems, helping DPFs to reach their optimum operating temperature faster.
read full story*

* This is a .pdf file. You’ll need the Adobe Acrobat Reader to view it.

Error 404--Not Found

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.