You can think of Python as your tool to solve problems that are far beyond the capability of a spreadsheet. It is an easy-to-use and easy-to learn programming language that is freely available on Windows, Macintosh, and Linux computers. There are free downloadable copies of this book in various electronic formats and a self-paced free online course where you can explore the course materials. All the supporting materials for the book are available under open and remixable licenses. This book is designed to teach people to program even if they have no prior experience.

    So, why does conventional wisdom insist that software engineers focus primarily on the design and development of large-scale computing systems?In this collection of essays and articles, key members of Google's Site Reliability Team explain how and why their commitment to the entire lifecycle has enabled the company to successfully build, deploy, monitor, and maintain some of the largest software systems in the world. You'll learn the principles and practices that enable Google engineers to make systems more scalable, reliable, and efficient--lessons directly applicable to your organization.This book is divided into four sections: Introduction--Learn what site reliability engineering is and why it differs from conventional IT industry practicesPrinciples--Examine the patterns, behaviors, and areas of concern that influence the work of a site reliability engineer (SRE)Practices--Understand the theory and practice of an SRE's day-to-day work: building and operating large distributed computing systemsManagement--Explore Google's best practices for training, communication, and meetings that your organization can use

    The theory is sound, but something goes wrong, and a highly contagious combination of virus and prion is unleashed, a middle-stage organism too dangerous to test. With emergency services overwhelmed, a small community hospital tries to combat the unthinkable--an illness that causes aggression, spreads through violence, and won’t allow the dead to rest.

    

    Tesla's rare article, 'The Problem of Increasing Human Energy with Special Reference to the Harnessing of the Sun's Energy' is included. This lengthy article was originally publishing in the June 1900 issue of The Century Illustrated Monthly Magazine and it was the outline for Tesla's master blueprint for the world. Tesla's fantastic vision of the future, including wireless power, anti-gravity, free energy and highly advanced solar power. Also included are some of the papers, patents and material collected on Tesla at the Colorado Spring Tesla Symposiums. Tesla was the inventor of the radio before Marconi, and when he demonstrated wireless remote control to the US Navy in the late 1890s, they replied that it was too advanced! Tesla was an eccentric visionary and probably the greatest inventor who ever lived. His basic inventions power the world of today. What was his vision of tomorrow? Find out in The Tesla Papers.

    None is more readily and inexpensively corrected. And none is more often untreated, and even unsuspected.Hypothyroidism -- low thyroid function -- is one of the gland disturbances that many people suffer from without even realizing it. It can be the cause of low energy or constant fatigue that is one of the most common complaints brought to doctors. It may be responsible for chronic headaches, repeated infections, unyielding skin problems, or circulatory difficulties. Even more frightening, it can be a major factor in heart disease, lung cancer, and emphysema. And it is responsible for many emotional and mental disturbances. Hypothyroidism: The Unsuspected Illness explains low thyroid function in easy, understandable language. It tells how it may be affecting your health and your life.Dr. Broda Barnes and Lawrence Galton tell what the thyroid gland is, how it works, the problems its dysfunction can induce. They detail case histories of patients, often thought hopeless, whose problems were discovered to be related to hypothyroidism and were cured by Dr. Barnes's simple effective techniques. And they discuss whether you too may be hypothyroid, affected by a condition even a physician may not recognize.Included is a simple test you can make at home to discover if hypothyroidism may be the real, previously unsuspected cause of your ill health.If you know you are hypothyroid, Hypothyroidism: The Unsuspected Illness will answer your questions about your condition. If you suspect you maybe, if you are unsure what may be causing those chronic headaches, infections, fatigue and low energy, it may help you find the answer.

    With this concise book, you will quickly gain working knowledge of Sinatra and its minimalist approach to building both standalone and modular web applications. Sinatra serves as a lightweight wrapper around Rack middleware, with syntax that maps closely to functions exposed by HTTP verbs, which makes it ideal for web services and APIs. If you have experience building applications with Ruby, you’ll quickly learn language fundamentals and see under-the-hood techniques, with the help of several practical examples. Then you’ll get hands-on experience with Sinatra by building your own blog engine. Learn Sinatra’s core concepts, and get started by building a simple application Create views, manage sessions, and work with Sinatra route definitions Become familiar with the language’s internals, and take a closer look at Rack Use different subclass methods for building flexible and robust architectures Put Sinatra to work: build a blog that takes advantage of service hooks provided by the GitHub API

    Traditional mathematics teaching is largely about solving exactly stated problems exactly, yet life often hands us partly defined problems needing only moderately accurate solutions. This engaging book is an antidote to the rigor mortis brought on by too much mathematical rigor, teaching us how to guess answers without needing a proof or an exact calculation.In Street-Fighting Mathematics, Sanjoy Mahajan builds, sharpens, and demonstrates tools for educated guessing and down-and-dirty, opportunistic problem solving across diverse fields of knowledge--from mathematics to management. Mahajan describes six tools: dimensional analysis, easy cases, lumping, picture proofs, successive approximation, and reasoning by analogy. Illustrating each tool with numerous examples, he carefully separates the tool--the general principle--from the particular application so that the reader can most easily grasp the tool itself to use on problems of particular interest. Street-Fighting Mathematics grew out of a short course taught by the author at MIT for students ranging from first-year undergraduates to graduate students ready for careers in physics, mathematics, management, electrical engineering, computer science, and biology. They benefited from an approach that avoided rigor and taught them how to use mathematics to solve real problems.Street-Fighting Mathematics will appear in print and online under a Creative Commons Noncommercial Share Alike license.