As a former Design Engineer at Newport News Shipbuilding I worked extensively with titanium alloys in the design of submarine components. Titanium is an excellent material for a number of reasons and is especially well suited to a marine environment because of it's corrososion resistance and strength.
Some time back the Russian navy produced a class of subs with a titanium hull. They were welded in a large inert gas filled chamber with welders in moon suit like gear and oxygen supplied through hoses. The issue at the time as far as my understanding goes was that in order to prevent contamination of the weld material the hot weld must be shielded with argon gas until the weld is below around 650 degrees F.
A middle school team from Rochester, Mich., has again nabbed the grand prize in the annual international Future City Competition, which drew students from 37 regions of the United States, as well as from England and China.
The word “smart” is becoming the dumbest word around. It has been applied to almost every device and system in our homes. In addition to smartphones and smart meters, we now hear about smart clothing and smart shoes, smart lights, smart homes, smart buildings, and every trendy city today has its smart city project. Just because it has a computer inside and is connected to the Web, does not mean it is smart.
Are you being paid enough? Do you want a better job? According to a recent survey Manpower released just before Engineers Week, employers and engineers don't see eye-to-eye about the state of US engineers' skills and experience.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.