Harmonograph is an introduction to the evolution of simple harmonic theory, from the discoveries of Pythagoras to diatonic tuning and equal temperament. Beautiful drawings show the octave as triangle, the fifth as pentagram; diagrams show the principles of harmonics, overtones, and the monochord. Anthony Ashton examines the phenomenon of resonance in Chladni patterns, describes how to build a harmonograph of your own, and provides tables of world tuning systems. This inspiring book will appeal to musicians, mathematicians, designers, and artists alike.

    The first part deals with basic ideas, reviewing special relativity and electromagnetism while introducing the concept of extra dimensions. D-branes and the classical dynamics of relativistic strings are discussed next, and the quantization of open and closed bosonic strings in the light-cone gauge, along with a brief introduction to superstrings. The second part begins with a detailed study of D-branes followed by string thermodynamics. It discusses possible physical applications, and covers T-duality of open and closed strings, electromagnetic fields on D-branes, Born/Infeld electrodynamics, covariant string quantization and string interactions. Primarily aimed as a textbook for advanced undergraduate and beginning graduate courses, it will also be ideal for a wide range of scientists and mathematicians who are curious about string theory.

    She had a few friends who consisted of her roommate since freshmen year Carissa and Chantel who was the only friend that she’s had since her childhood, she was mainly the only thing that she vaguely remembered from her childhood. She’s in a relationship with Chantel’s fraternal twin brother Mike who later cheats on her. In the beginning of her junior year in college she meets this guy named August, and he's known for only wanting one thing from girls and that's sex but he see’s something different in Melissa and he’s willing to try committing with her. Melissa's been hurt one too many times that she doesn’t want another relationship, so being the type of person that August is he makes an deal with her. Which is Sex and no Commitment, but at this rate they are both going it's going to be a tough deal to follow through with. And there's something that Melissa forgets to mention to August, will he still want her after she tells him? So many questions, but you gotta read to find out.

    With SQL and this task-based guide to it, you can do it too—no programming experience required!After going over the relational database model and SQL syntax in the first few chapters, veteran author Chris Fehily launches into the tasks that will get you comfortable with SQL fast. In addition to explaining SQL basics, this updated reference covers the ANSI SQL:2003 standard and contains a wealth of brand-new information, including a new chapter on set operations and common tasks, well-placed optimization tips to make your queries run fast, sidebars on advanced topics, and added IBM DB2 coverage.Best of all, the book's examples were tested on the latest versions of Microsoft Access, Microsoft SQL Server, Oracle, IBM DB2, MySQL, and PostgreSQL. On the companion Web site, you can download the SQL scripts and sample database for all these systems and put your knowledge to work immediately on a real database..

    But what vow could forestall their separate destinies or shield them from an age when innocence was overcome by violence and the force of history itself?Continents apart, they fought and loved the world over before coming to America and plunging into the gigantic maelstrom of the Civil War.Fred Mustard Stewart, author of such bestsellers as Ellis Island, Century, and The Glitter and the Gold, has woven a vast epic about a stunning, spirited woman, a proud, passionate man, and a chapter of history written in blood and bravery, tragedy and triumph.