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Certain blue fabric dyes (such as indigo) are very light-fast (they do not fade when subjected to strong light. This is a desirable quality and has become standard for work clothes.

Maybe that's because clothes in this color are subject to dirt.

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Q: Why mechanical engineer coverall is navy blue?
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Continue Learning about Engineering

What is the salary of second engineer in merchant navy?

It depends on the specialisation of the industry sectors, I.e oil & gas, cable/pipe laying, ferries etc. It is generally around £40k-45k.


What are facts about engineering?

"Nothing is true, everything can be questioned" but while learning the basics one should not question :( It takes an engineer to undertake the training of an engineer and not, as often happens, a theoretical engineer who is clever on a blackboard with mathematical formulae but useless as far as production is concerned ;)


Who invented greek fire?

the byzantines navy


How much money do you get for designing submarines?

There is no single job for submarine design. Design is done by teams of engineers, working to specifications and performance standards set by contract with either General Dynamics (Electric Boat) or Newport News Shipbuilding and Drydock Company, at least here in the U.S. The contract will have what the Navy wants, and the 2 companies come up with a design they believe will fit the Navy's requirements. There are literally many engineers that work on the project. Design and development is usually a collaborative process that takes years. I remember being briefed by COMSUBLANT on the Seawolf-class design in 1985, long before it was built. Salary depends also on who you're working for and what systems you're designing. Nuclear engineers tend to make more, and it also depends on whether you're military, civilian government, or a contractor. Contractor employees will always make more than their government counterparts, but many contractor engineers are also former Naval officers/engineers. In the end it's really not about submarine design as it is about being an Electrical, Mechanical, Hydro, Electronics, Nuclear, etc. engineer and the going rate for your experience level in Naval engineering.


What the name of first ship with steam turbine powered ship?

One of the first was Charles Parsons' ship Turbinia, built in 1894. Its inventor took it to the British Royal Navy's annual Spithead Review, and disrupted the proceedings by steaming up and down at high speed, outrunning the Navy vessels ordered to intercept it.After that the idea was taken up by the Navy and the first steam-turbine-powered destroyers were launched in 1899.