Science and Technology on page 2

This book chronicles the history and development of the Kevlar vest by one of the original creators. Over the past 2000 years there has been a continuing need for protective armor to counter the advancements in weapons. It was not until the 1960's that a new material was developed and technology was realized that would revolutionize personal protection. The discovery of a synthetic fiber, Dupont's PRD 49-IV, that later became Kevlar, the development of ballistic testing and medical research would come together and create a new and effective body armor that would go on to save countless lives of law enforcement officers, soldiers and government officials. This is the story of h ...

A detailed repair supplement for the earliest of the Thomas Organ Vox amplifiers. This adds to the design and how-it-works information in the Vox Owner's Safety Net with detailed parts lists, schematics, debugging voltages, and advice on replacement parts. This supplement corrects the mistakes in the Thomas Vox factory service literature.

When Nicolaus Copernicus discovered the Earth wasn’t the center of the Universe, everything changed. When Frederick Miescher discovered DNA, everything changed again. When quantum physicists discovered our physical universe isn’t real, that it’s a hologram - everything ... wait! Nothing changed - yet. Now "Butterflies are Free to Fly: A New and Radical Approach to Spiritual Evolution" examines how quantum physics and recent scientific experiments are radically changing our understanding of life, our reality, and our spirituality, giving us a new model for the way our universe works and the practical steps to take toward true joy and excitement and peace of mind.

The Repair Supplement to the Vox Owner's Safety Net for the Vox Cambridge Reverb V1031 and V1032, and the electronically identical Berkeley II V1081. This manual covers detailed schematics, PCB diagrams, parts lists, parts substitutions and other information for repairing these vintage amps. It extends the design and overview information to the Vox Owner's Safety Net.

This book ia an experiment using the Chat Robot ChatGPT. The contents contain many interactive conversations with the Chat bot. The results are quite impressive seeming to be so close to conversationally interacting with a real human being! The collected conversations span a range of topics from mathematics, physics to basic story telling and humor writing like puns, riddles, jokes, etc.

This book is based on a PowerPoint presentation describing how the author's nearly 40 years of climate research concludes that the Lord has an active roll in the lives of his Latter-day Saints including using climate to accomplish His ends. The Medieval Warm Period and the Little Ice Age had large impacts on (1) the ability to grow corn in Utah, (2) the discovery of America, (3) the restoration of His gospel through the Joseph Smith, and (4) the settling of the valley of the Great Salt Lake.

This 86-page book presents basic and advanced concepts in circuit dynamics - the circuit theory of frequency response, risetime, bandwidth, open-circuit time constants, Miller's frequency-dependent theorem, the Extra Element Theorem (EET), ZEET, Blackman's Z Theorem, the Cochrun-Grabel method for finding circuit poles, strategies for maximizing circuit performance involving stage isolation and pole separation, and the ability to analyze amplifiers by modularizing and controlling stage interfacing. It supplies derivations and more detail than the author's book, Transistor Amplifiers. It corrects some popular misconceptions about calculating bandwidth, fills in neglected high-frequenc ...

In this release, Professor. Ben Swetmore supplies us with a very interesting scientific reading discussing the various different levels of color-grading's, or more simply visual changes, that have been occurring on the Earth for many years, as evidenced by early photo and film records. Swetmore goes deeper than that, using things such as ancient ruins, to estimate for at-least how many thousands of years these changes have been occurring. He also speculates as to whether these distinct changes are confined to the Earth and other Planets, or the entire Universe in general, and whether or not they are apart of a gradual-evolution that has been occurring since the very beginning...

Far more than just a dry technical work, "Confessions of an Audioholic" is an entertaining, humanistic and very personal glimpse into the world of consumer electronics products. Steve Feinstein--a consumer electronics veteran of more than 40 years--shares his insights, observations and opinions about the most memorable equipment, companies and personalities of the last half-century. Even if you don't know the difference between a capacitor and a decibel, you will find this book endlessly fascinating and captivating.