Cryptography is the practice of secure communication in the presence of third parties. Its ancient history includes the use of ciphers, such as the Caesar cipher, for military and state secrets. The modern field of cryptography can be divided into several areas: – Secret-key cryptography, also called symmetric-key cryptography, uses a single key for both…
Barrett’s esophagus is a condition in which the tissue lining the esophagus becomes damaged, usually as a result of acid reflux. While there is no cure for Barrett’s esophagus, making dietary changes can help to reduce symptoms and prevent further damage to the esophagus. The best diet for Barrett’s esophagus is one that is low…
In his book, Journeys Out of the Body, Robert Monroe documents his personal experiences with astral projection. Monroe defines astral projection as an out-of-body experience (OBE) in which the astral body leaves the physical body and travels independently of it. He claims that everyone is capable of projecting their astral bodies, and that many people…
Applied Combinatorics by Alan Tucker is an excellent book for those interested in learning about combinatorics and its applications. The book starts with the basics of counting and then moves on to more advanced topics such as probability and statistics. Throughout the book, Tucker provides many examples and exercises to help readers understand the material….
In Barlowe’s Guide to Extraterrestrials, author Ian Summers provides an in-depth look at the various alien races that have been discovered throughout the galaxy. The book is broken down into sections based on the different regions of space where these aliens reside, and each section includes detailed information on the physical appearance, culture, and history…
In “An Integrated Approach to Intermediate Japanese” by A. Miura, the author provides an all-inclusive guide to intermediate level Japanese language learners. The book is divided into four sections: grammar, conversation, reading, and writing. In each section, the author builds upon the basics learned in previous chapters while also introducing new material. This approach allows…
Astral dynamics is the study of out-of-body experiences, astral projection, and related phenomena. It is a branch of parapsychology that seeks to understand how these experiences are mediated by psychological and physiological factors. Astral dynamics also encompasses research on near-death experiences, reincarnation, and other aspects of human consciousness that may be relevant to understanding the…
Barking Up the Wrong Tree by Eric Barker is a fascinating book that explores the science of success. In it, Barker delves into the mindsets and behaviors of successful people to see what sets them apart from everyone else. He also debunks some widely-held beliefs about success, such as the idea that it’s all about…
The new Astra Militarum Codex 8th edition by Games Workshop is now available. This codex allows you to field the Astra Militarum, also known as the Imperial Guard, in Warhammer 40,000 games. The Astra Militarum are the Imperium’s standing army and one of the largest military forces in the galaxy. They are tasked with defending…
Applied Calculus for the Managerial, Life, and Social Sciences, 10th Edition by Soo T. Tan (Author) is an excellent book for students who are studying calculus. The book covers all of the essential topics in calculus and provides a clear and concise explanation of the concepts. In addition, the examples and exercises are well-chosen and…