With the advent of CCDs and webcams, the focus of amateur astronomy has to some extent shifted from science to art. Visual work in astronomy has a rich history. Today, imaging is now more prominent. However there is still much for the visual amateur astronomer to do, and visual work is still a valid component of amateur astronomy. Paul...

devices, but few provide a quick and portable solution for networking professionals. This book is designed to provide a quick-and-easy reference guide for a wide range of commonly used features that can be configured on...

Using mathematical tools from number theory and finite fields, Applied Algebra: Codes, Ciphers, and Discrete Algorithms, Second Edition presents practical methods for solving problems in data security and data integrity. It is designed for an applied algebra course for students who have had prior classes in abstract or linear...

Jini is Sun's attempt to make transparent distriuted computing a reality. So what does this mean? Imagine living in a world where you could move to a new office in another country or check into a hotel and plug your notebook or PDA directly into the network at that location. Your notebook would be immediately recognized and have access to...

Hackers Beware starts with a roadmap of the various areas of hacking but quickly delves into the details of how specific attacks work and how to protect against them. Since most attacks we hear about either occur or are perceived to come from hackers, people are very interested "in how they do that" - the techniques hackers use to...

Results matter, whether you are a mathematician, scientist, or engineer. The time that you spend doing tedious mathematical calculations could be spent in more productive ways. Sage is an open-source mathematical software system that helps you perform many mathematical tasks. There is no reason to compute integrals or perform algebraic...

If you've always wished you could install Apple's rock solid Mac OS X on your non-Apple notebook, budget PC, or power-tower PC, wish no more. Yes, you can, and this intriguing book shows you exactly how. Walk through these step-by-step...