The Shadow of the Telescope


Book Description

Günther Buttman’s The Shadow of the Telescope was the first full-length biography of the nineteenth-century astronomer, Sir John Herschel. First published in German, this intriguing text chronicles the life and works of the third of the Herschel astronomers, the son of William and the nephew of Caroline. John was extremely intelligent, graduating as Senior Wrangler in the notoriously difficult Mathematical Tripos at Cambridge University. While less famous than his father and aunt, he nevertheless went on to make important discoveries in the field of astronomy. He named seven moons of Saturn and four moons of Uranus, the planet his father had only recently discovered. Making admirable use of John's unpublished correspondence, diaries, and notebooks, Buttman covers his extensive astronomical observations at Cape Town in South Africa, his pioneering work in photography and in physical optics in Britain, his unhappy experiences as Master of the Mint, and much more.




The Shadow of the Telescope


Book Description

This first full-length biography of Sir John Herschel tells of a remarkable man who contributed to nearly every branch of astronomy and to half a dozen other sciences as well. The only son of the astronomer Sir William Herschel (founder of stellar astronomy and discoverer of the planet Uranus), he comes vividly to life in descriptions of his personality and his varied achievements. Making admirable use of John Herschel's unpublished correspondence, diaries, and notebooks, the author covers his extensive astronomical observations at Cape Town in South Africa, his pioneering work in photography and in physical optics in Britain, and his unhappy experiences as Master of the Mint - and much more. John Herschel was so attractive and enterprising an individual that his biography will appeal to general readers as well as to professionals - historians of science, astronomers, and scientists in related fields.







Einstein's Shadow


Book Description

Einstein’s Shadow follows a team of elite scientists on their historic mission to take the first picture of a black hole, putting Einstein’s theory of relativity to its ultimate test and helping to answer our deepest questions about space, time, the origins of the universe, and the nature of reality Photographing a black hole sounds impossible, a contradiction in terms. But Shep Doeleman and a global coalition of scientists are on the cusp of doing just that. With exclusive access to the team, journalist Seth Fletcher spent five years following Shep and an extraordinary cast of characters as they assembled the Event Horizon Telescope, a worldwide network of radio telescopes created to study black holes. He witnessed the team’s struggles, setbacks, and breakthroughs, and, along the way, Fletcher explored the latest thinking on the most profound questions about black holes: Do they represent a limit to our ability to understand reality? Or will they reveal the clues that lead to the long-sought theory of everything? Fletcher transforms astrophysics into something exciting, accessible, and immediate, taking us on an incredible adventure to better understand the complexity of our galaxy, the boundaries of human perception and knowledge, and how the messy endeavor of science really works. Weaving a compelling narrative account of human ingenuity with excursions into cutting-edge science, Einstein’s Shadow is a tale of great minds on a mission to change the way we understand our universe—and our place in it.




The Shadow of the Black Hole


Book Description

"Black holes are one of the extraordinary phenomena in the universe whose existence was surmised not by observations, but by theory. The black hole is a prediction of Einstein's 1915-1916 gravitational theory, general relativity, which replaced Sir Isaac Newton's gravity theory, published in his famous treatise Principia in 1687. In 1784, Reverend John Michell, a fellow of Queens' College and Professor of Geology at Cambridge University, had already envisioned what we now call black holes. He asked what would happen if a star's gravity were so strong that its escape velocity - the speed at which a rocket, for example, would have to travel to leave the star - exceeded the speed of light? Michell realized that any light emanating from the star would have to fall back to its surface. He speculated that the escape velocity would exceed the speed of light for a very massive star, making the star invisible to an observer"--




Exploring the Moon Through Binoculars and Small Telescopes


Book Description

Informative, profusely illustrated guide to locating and identifying craters, rills, seas, mountains, other lunar features. Newly revised and updated with special section of new photos. Over 100 photos and diagrams. "Extraordinary delight awaits the amateur astronomer or teacher who opens this book." — The Science Teacher.




Cosmic Challenge


Book Description

Listing more than 500 sky targets, both near and far, in 187 challenges, this observing guide will test novice astronomers and advanced veterans alike. Its unique mix of Solar System and deep-sky targets will have observers hunting for the Apollo lunar landing sites, searching for satellites orbiting the outermost planets, and exploring hundreds of star clusters, nebulae, distant galaxies, and quasars. Each target object is accompanied by a rating indicating how difficult the object is to find, an in-depth visual description, an illustration showing how the object realistically looks, and a detailed finder chart to help you find each challenge quickly and effectively. The guide introduces objects often overlooked in other observing guides and features targets visible in a variety of conditions, from the inner city to the dark countryside. Challenges are provided for the naked eye, through binoculars and the largest backyard telescopes.




Chasing Hubble's Shadows


Book Description

Chasing Hubble's Shadows is an account of the continuing efforts of astronomers to probe the outermost limits of the observable universe. The book derives its title from something the great American astronomer Edwin Hubble once wrote: "Eventually, we reach the dim boundary—the utmost limits of our telescopes. There, we measure shadows, and we search among ghostly errors of measurement for landmarks that are scarcely more substantial." The quest for Hubble's "shadows"—those unimaginably distant, wispy traces of stars and galaxies that formed within the first few hundred million years after the Big Bang—takes us back, in effect, to the beginning of time as we are able to perceive it, when the first discrete stellar objects appeared out of what has lately come to be known as the "cosmic dark age." The information that is being gleaned from these dim sources—chiefly with the aid of Hubble's namesake, the Hubble Space Telescope—promises to yield clues to many cosmic puzzles, including the nature of the mysterious "dark energy" that is now believed to pervade all of space.




Half-hours with the Telescope


Book Description

DigiCat Publishing presents to you this special edition of "Half-hours with the Telescope" (Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction) by Richard A. Proctor. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.




Astronomy Hacks


Book Description

Astronomy Hacks begins the space exploration by getting you set up with the right equipment for observing and admiring the stars in an urban setting. Along for the trip are first rate tips for making most of observations. The hacks show you how to: Dark-Adapt Your Notebook Computer. Choose the Best Binocular. Clean Your Eyepieces and Lenses Safely. Upgrade Your Optical Finder. Photograph the Stars with Basic Equipment.