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Submarine Warfare An Illustrated History

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The lure of underwater travel seems to have obsessed inventors almost as much as the wish to fly, but the first attempt to address practical problems did not come until the sixteenth century. In 1578 an Englishman called William Bourne wrote of a submersible boat in his book Inventions and Devices.

Although there is no evidence that Bourne built such a boat, he clearly grasped the essentials: a watertight hull, ballast tanks and a means of expelling the seawater from those tanks to return to the surface. He described a wooden hull, with leather bags in the bilges which would be filled with seawater through holes in the side of the boat, destroying its positive buoyancy. To return to the surface two screw presses would squeeze the water out again, restoring buoyancy. He also proposed a hollow mast to refresh the air supply.
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Configuration Management Best Practices: Practical Methods that Work in the Real World
Configuration Management Best Practices: Practical Methods that Work in the Real World

Successfully Implement High-Value Configuration Management Processes in Any Development Environment

 

As IT systems have grown increasingly complex and mission-critical, effective configuration management (CM) has become critical to an...

Eclipse Development Using the Graphical Editing Framework And the Eclipse Modeling Framework (IBM Redbooks)
Eclipse Development Using the Graphical Editing Framework And the Eclipse Modeling Framework (IBM Redbooks)

Eclipse Development using the Graphical Editing Framework and the Eclipse Modelling Framework is written for developers who use the Eclipse SDK to develop plug-in code. This IBM Redbook is intended for a technical readership and for developers who already have good knowledge and experience in Eclipse plug-in development.

In this...

Religious Experience Reconsidered: A Building-Block Approach to the Study of Religion and Other Special Things
Religious Experience Reconsidered: A Building-Block Approach to the Study of Religion and Other Special Things

The essence of religion was once widely thought to be a unique form of experience that could not be explained in neurological, psychological, or sociological terms. In recent decades scholars have questioned the privileging of the idea of religious experience in the study of religion, an approach that effectively isolated the study of religion...


Mobility Management in Wireless Networks: Data Replication Strategies and Applications (ERCOFTAC S.)
Mobility Management in Wireless Networks: Data Replication Strategies and Applications (ERCOFTAC S.)
In wireless communication systems, the network keeps track of a user’s
location through an up-to-date user profile stored in various databases.
A user profile contains not only a user’s current location information, but
also service information, such as billing and authentication. The coverage
area of an access
...
Testing Python: Applying Unit Testing, TDD, BDD and Acceptance Testing
Testing Python: Applying Unit Testing, TDD, BDD and Acceptance Testing

Fundamental testing methodologies applied to the popular Pythonlanguage

Testing Python; Applying Unit Testing, TDD, BDD andAcceptance Testing is the most comprehensive book available ontesting for one of the top software programming languages in theworld. Python is a natural choice for new and experienceddevelopers,...

Principles of Cloning
Principles of Cloning
In 1997, Dolly the cloned sheep began a biological revolution. She showed us the way to physiologically dedifferentiate already committed somatic cells, opening the gate to a whole new world of possibilities in the study of basic biological mechanisms that touch the origins of life at its core. It is clear that cloning vertebrates...
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