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Working with Layers in AutoCAD 2009

Categories : Cad and auto cad

Layers are very important for managing AutoCAD drawings, especially for huge architectural and electrical drawings. AutoCAD 2009 has many tools to …

How to Read Morse Code: A Guide to Dashes & Dots That Make Up Morse Code

Categories : Life at sea

Morse Code is often used on board ships as a way to transmit signals. A combination of dashes and dots are used for words, letters and numbers. Learn …

How Does a Bilge Pump Work ?

Categories : Marine machinery, engines & controls

It is important to empty ship’s bilge wells at regular interval of times to prevent flooding of the engine room. Bilge pumps are used for this …

How does a Hovercraft Work?

Categories : Naval architecture & ship design for marine engineers

Wouldn’t you love to drive a boat that can run at a speed equal to that of the fastest car on the earth? Engineers have been looking for ways to …

How to make a Kayak ?

Categories : Naval architecture & ship design for marine engineers

So you want to go fishing all alone or probably just want to sail in the lake near your house, but don’t have the money to buy or rent a real …

Sextant Navigation: How Does a Sextant Work?

Categories : Life at sea

Many of us have seen photographs of seamen using a marine sextant. What exactly is that navigator measuring? Learn how a sextant works to help marine …

Marine history - Marine navigation since Columbus

Categories : Life at sea

In this concluding article in the series, I explain how inventions changed the face of navigation at sea post the 1500’s, the Columbus era. Read on to …