No Shadow of a Doubt

No Shadow of a Doubt
Author: Daniel Kennefick
Publisher: Princeton University Press
Total Pages: 416
Release: 2021-03-09
Genre: Biography & Autobiography
ISBN: 0691217157

On their 100th anniversary, the story of the extraordinary scientific expeditions that ushered in the era of relativity In 1919, British scientists led extraordinary expeditions to Brazil and Africa to test Albert Einstein's revolutionary new theory of general relativity in what became the century's most celebrated scientific experiment. The result ushered in a new era and made Einstein a global celebrity by confirming his dramatic prediction that the path of light rays would be bent by gravity. Today, Einstein's theory is scientific fact. Yet the effort to weigh light by measuring the gravitational deflection of starlight during the May 29, 1919, solar eclipse has become clouded by myth and skepticism. Could Arthur Eddington and Frank Dyson have gotten the results they claimed? Did the pacifist Eddington falsify evidence to foster peace after a horrific war by validating the theory of a German antiwar campaigner? In No Shadow of a Doubt, Daniel Kennefick provides definitive answers by offering the most comprehensive and authoritative account of how expedition scientists overcame war, bad weather, and equipment problems to make the experiment a triumphant success. The reader follows Eddington on his voyage to Africa through his letters home, and delves with Dyson into how the complex experiment was accomplished, through his notes. Other characters include Howard Grubb, the brilliant Irishman who made the instruments; William Campbell, the American astronomer who confirmed the result; and Erwin Findlay-Freundlich, the German whose attempts to perform the test in Crimea were foiled by clouds and his arrest. By chronicling the expeditions and their enormous impact in greater detail than ever before, No Shadow of a Doubt reveals a story that is even richer and more exciting than previously known.

Gravity’s Century

Gravity’s Century
Author: Ron Cowen
Publisher: Harvard University Press
Total Pages: 193
Release: 2019-05-06
Genre: Science
ISBN: 0674974964

A sweeping account of the century of experimentation that confirmed Einstein’s general theory of relativity, bringing to life the science and scientists at the origins of relativity, the development of radio telescopes, the discovery of black holes and quasars, and the still unresolved place of gravity in quantum theory. Albert Einstein did nothing of note on May 29, 1919, yet that is when he became immortal. On that day, astronomer Arthur Eddington and his team observed a solar eclipse and found something extraordinary: gravity bends light, just as Einstein predicted. The finding confirmed the theory of general relativity, fundamentally changing our understanding of space and time. A century later, another group of astronomers is performing a similar experiment on a much larger scale. The Event Horizon Telescope, a globe-spanning array of radio dishes, is examining space surrounding Sagittarius A*, the supermassive black hole at the center of the Milky Way. As Ron Cowen recounts, the foremost goal of the experiment is to determine whether Einstein was right on the details. Gravity lies at the heart of what we don’t know about quantum mechanics, but tantalizing possibilities for deeper insight are offered by black holes. By observing starlight wrapping around Sagittarius A*, the telescope will not only provide the first direct view of an event horizon—a black hole’s point of no return—but will also enable scientists to test Einstein’s theory under the most extreme conditions. Gravity’s Century shows how we got from the pivotal observations of the 1919 eclipse to the Event Horizon Telescope, and what is at stake today. Breaking down the physics in clear and approachable language, Cowen makes vivid how the quest to understand gravity is really the quest to comprehend the universe.

Einstein Was Right

Einstein Was Right
Author: Jed Z. Buchwald
Publisher: Princeton University Press
Total Pages: 248
Release: 2020-10-13
Genre: Science
ISBN: 0691211973

An authoritative interdisciplinary account of the historic discovery of gravitational waves In 1915, Albert Einstein predicted the existence of gravitational waves—ripples in the fabric of spacetime caused by the movement of large masses—as part of the theory of general relativity. A century later, researchers with the Laser Interferometer Gravitational-Wave Observatory (LIGO) confirmed Einstein's prediction, detecting gravitational waves generated by the collision of two black holes. Shedding new light on the hundred-year history of this momentous achievement, Einstein Was Right brings together essays by two of the physicists who won the Nobel Prize for their instrumental roles in the discovery, along with contributions by leading scholars who offer unparalleled insights into one of the most significant scientific breakthroughs of our time. This illuminating book features an introduction by Tilman Sauer and invaluable firsthand perspectives on the history and significance of the LIGO consortium by physicists Barry Barish and Kip Thorne. Theoretical physicist Alessandra Buonanno discusses the new possibilities opened by gravitational wave astronomy, and sociologist of science Harry Collins and historians of science Diana Kormos Buchwald, Daniel Kennefick, and Jürgen Renn provide further insights into the history of relativity and LIGO. The book closes with a reflection by philosopher Don Howard on the significance of Einstein's theory for the philosophy of science. Edited by Jed Buchwald, Einstein Was Right is a compelling and thought-provoking account of one of the most thrilling scientific discoveries of the modern age.

Einstein's War

Einstein's War
Author: Matthew Stanley
Publisher: Viking
Total Pages: 402
Release: 2019
Genre: Biography & Autobiography
ISBN: 1524745413

"Stanley is a storyteller par excellence."--The Washington Post Kirkus Review starred review; Publishers Weekly starred review; Booklist starred review The birth of a world-changing idea in the middle of a bloodbath Einstein's War is a riveting exploration of both the beauty of scientific creativity and enduring horrors of human nature. These two great forces battle in a story that culminates with a victory now a century old, the mind-bending theory of general relativity. Few recognize how the Great War, the industrialized slaughter that bled Europe from 1914 to 1918, shaped Einstein's life and work. While Einstein never held a rifle, he formulated general relativity blockaded in Berlin, literally starving. He lost fifty pounds in three months, unable to communicate with his most important colleagues. Some of those colleagues fought against rabid nationalism; others were busy inventing chemical warfare--being a scientist trapped you in the power plays of empire. Meanwhile, Einstein struggled to craft relativity and persuade the world that it was correct. This was, after all, the first complete revision of our conception of the universe since Isaac Newton, and its victory was far from sure. Scientists seeking to confirm Einstein's ideas were arrested as spies. Technical journals were banned as enemy propaganda. Colleagues died in the trenches. Einstein was separated from his most crucial ally by barbed wire and U-boats. This ally was the Quaker astronomer and Cambridge don A. S. Eddington, who would go on to convince the world of the truth of relativity and the greatness of Einstein. In May of 1919, when Europe was still in chaos from the war, Eddington led a globe-spanning expedition to catch a fleeting solar eclipse for a rare opportunity to confirm Einstein's bold prediction that light has weight. It was the result of this expedition--the proof of relativity, as many saw it--that put Einstein on front pages around the world. Matthew Stanley's epic tale is a celebration of how bigotry and nationalism can be defeated and of what science can offer when they are.

Totality

Totality
Author: Mark Littmann
Publisher: OUP Oxford
Total Pages: 359
Release: 2008-07-17
Genre: Science
ISBN: 0191579947

A total eclipse of the Sun is the most awesome sight in the heavens. Totality: Eclipses of the Sun takes you to eclipses of the past, present, and future, and lets you see - and feel - why people travel to the ends of the Earth to observe them. Totality: Eclipses of the Sun is the best guide and reference book on solar eclipses ever written. It explains: how to observe them; how to photograph and videotape them; why they occur; their history and mythology; and future eclipses - when and where to see them Totality also tells the remarkable story of how eclipses shocked scientists, revealed the workings of the Sun, and made Einstein famous. And the book shares the experiences and advice of many veteran eclipse observers. Totality: Eclipses of the Sun is profusely illustrated with stunning photographs (many in color) and more than a hundred maps and diagrams. It can be read by lay people and astronomers with ease and enjoyment.

Exploring the History of Southeast Asian Astronomy

Exploring the History of Southeast Asian Astronomy
Author: Wayne Orchiston
Publisher: Springer Nature
Total Pages: 802
Release: 2021-08-01
Genre: Science
ISBN: 3030627772

This edited volume contains 24 different research papers by members of the History and Heritage Working Group of the Southeast Asian Astronomy Network. The chapters were prepared by astronomers from Australia, France, Germany, India, Indonesia, Japan, Malaysia, the Philippines, Scotland, Sweden, Thailand and Vietnam. They represent the latest understanding of cultural and scientific interchange in the region over time, from ethnoastronomy to archaeoastronomy and more. Gathering together researchers from various locales, this volume enabled new connections to be made in service of building a more holistic vision of astronomical history in Southeast Asia, which boasts a proud and deep tradition.

Report on the Relativity Theory of Gravitation

Report on the Relativity Theory of Gravitation
Author: Arthur S Eddington
Publisher: Minkowski Institute Press
Total Pages: 146
Release: 2014-11-07
Genre: Gravitation
ISBN: 9781927763285

This volume contains new publications of two important works that have never been published together and are two firsts: (i) A. S. Eddington's Report on the Relativity Theory of Gravitation (2ed, Fleetway Press, London 1920), which was the first systematic exposition of Einstein's general relativity, and (ii) the first experimental test of general relativity carried out by F. W. Dyson, A. S. Eddington and C. Davidson and reported in the paper "A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919" (Phil. Trans. R. Soc. Lond. A 1920 220, pp. 291-333). The answer to the question "Why should Eddington's Report be reprinted again, given that there exist hundreds of excellent books on general relativity?" was given in 1983 by the renowned astrophysicist and recipient of the 1983 Nobel Prize for Physics S. Chandrasekhar: "Eddington's Report is written so clearly and yet so concisely that it can be read, even today, as a good introductory text by a beginning student."

Sun Moon Earth

Sun Moon Earth
Author: Tyler Nordgren
Publisher: Basic Books
Total Pages: 266
Release: 2016-09-13
Genre: Science
ISBN: 0465096468

With beautiful illustrations and a detailed map, Sun Moon Earth has everything you need to get ready for the next solar eclipse. On April 8, 2024, millions of Americans will experience an awe-inspiring phenomenon: a total eclipse of the sun. In Sun Moon Earth, astronomer Tyler Nordgren illustrates how this most seemingly unnatural of natural phenomena was transformed from a fearsome omen to a tourist attraction. From the astrologers of ancient China and Babylon to the high priests of the Maya, Sun Moon Earth takes us around the world to show how different cultures interpreted these dramatic events. Greek philosophers discovered eclipses' cause and used them to measure their world and the cosmos beyond. Victorian-era scientists mounted eclipse expeditions during the age of globe-spanning empires. And modern-day physicists continue to use eclipses to confirm Einstein's theory of relativity. Beautifully illustrated and lyrically written, Sun Moon Earth is the ideal guide for all eclipse watchers and star gazers alike.