Gravity surveys have a huge range of applications, indicating density variations in the subsurface and identifying man-made structures, local changes of rock type or even deep-seated structures at the crust/mantle boundary. This important one-stop book combines an introductory manual of practical procedures with a full explanation of analysis techniques, enabling students, geophysicists, geologists and engineers to understand the methodology, applications and limitations of a gravity survey. Filled with examples from a wide variety of acquisition problems, the book instructs students in...

With Learn Sprite Kit for iOS Game Development, you'll discover how easy it is to create 2D games using the new Sprite Kit framework from Apple. You'll find how simple it is to create a scene, add animated sprites, incorporate edges, play sound effects, and create animated particles for special effects. You'll also use touch events to control your sprites, implement the built-in physics engine, handle sprite collisions and contacts, and much more.

To help you in learning how to use all these cool features of Sprite Kit, you'll follow along as we build a complete 2D game for iPhone....