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The Story Of Helium And The Birth Of Astrophysics

Author: Biman B. Nath
Publisher: Springer Science & Business Media
ISBN: 1461453631
Size: 39.48 MB
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What if one of the most thrilling stories in the history of science turned out to be wrong? Can urban legends creep into the hallowed grounds of scientific history? As incredible as it may sound, the story of one of the most important elements in modern times – helium - has been often misrepresented in books, encyclopedias, and online sources, despite the fact that archival materials tell a different story. Open the entry for Helium in any encyclopaedia and you will read a false story that has been repeated over the years. ‘Encyclopaedia Britannica’, for example, says that helium was discovered by the French astronomer Pierre Janssen while observing a total solar eclipse from India in 1868. Apparently he noticed something new in the spectrum of the sun, which he thought was the signature of an undiscovered element. The truth is that Janssen never saw any sign of a new element during his observations in India. His reports and letters do not mention any such claim. Other sources would have you believe that helium was jointly discovered by Janssen and Norman Lockyer, a British scientist, and that their discovery letters reached Paris the same day, one sent from India, and the other from England. Again, the truth is completely different. Two letters from Lockyer and Janssen did reach Paris the same day in 1868, but their letters did not mention any new element. What they had discovered was a new way of observing the Sun without a solar eclipse. This would ultimately lead to the discovery of helium, in which Lockyer would play a prominent role, but not Janssen. At the same time, Norman Robert Pogson, a disgruntled British astronomer stationed in India did notice something peculiar during the eclipse. He was the first one to notice something odd about the spectrum of the Sun that day, and his observations would prove crucial to Lockyer’s own investigations of helium. But Pogson’s report was never published in any peer reviewed journal and it languished on the desk of a local British officer in colonial India. This book tells the real story behind the discovery of helium, along with biographical sketches of the scientists and descriptions of the milieu in which they worked. It will convey the excitement, confusion, and passion of nineteenth century scientists, using their own words, from their letters and reports. “The Story of Helium and the Birth of Astrophysics” chronicles one of the most exciting discoveries ever made and explains why it also marked the birth of a new branch of science called ‘astrophysics.’

History Of Astronomy

Author: John Lankford
Publisher: Routledge
ISBN: 1136508341
Size: 72.61 MB
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This Encyclopedia traces the history of the oldest science from the ancient world to the space age in over 300 entries by leading experts.

After The First Three Minutes

Author: T. Padmanabhan
Publisher: Cambridge University Press
ISBN: 9780521629720
Size: 56.79 MB
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The evolution of our Universe and the formation of stars and galaxies are mysteries that have long puzzled scientists. Recent years have brought new scientific understanding of these profound and fundamental issues. In lively prose, Professor Padmanabhan paints a picture of contemporary cosmology for the general reader. Unlike other popular books on cosmology, After the First Three Minutes does not gloss over details, or shy away from explaining the underlying concepts. Instead, with a lucid and informal style, the author introduces all the relevant background and then carefully pieces together an engaging story of the evolution of our Universe. Padmanabhan leaves the reader with a state-of-the-art picture of scientists' current understanding in cosmology and a keen taste of the excitement of this fast-moving science. Throughout, no mathematics is used and all technical jargon is clearly introduced and reinforced in a handy glossary at the end of the book. For general readers who want to come to grips with what we really do and don't know about our Universe, this book provides an exciting and uncompromising read. Thanu Padmanabhan is a Professor at Inter-University Centre for Astronomy and Astrophysics in Pune, India. He is the recipient of numerous awards and author of three books, Structure Formation in the Universe (Cambridge, 1994), Cosmology and Astrophysics Through Problems (Cambridge, 1996), and, together with J.V. Narlikar, Gravity, Gauge Theories and Quantum Cosmology. He is also the author of more than one hundred popular science articles, a comic strip serial and several regular columns on astronomy, recreational mathematics, and the history of science.

Astronomy And Astrophysics

Author: A. B. Bhattacharya
Publisher: Jones & Bartlett Learning
ISBN: 9780763777869
Size: 79.82 MB
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This book is designed for upper division courses in astronomy and as a reference for science professionals. The subject areas of astronomy and astrophysics have grown tremendously during the last few decades. New developments in radio astronomy and recent data retrieved from NASA's Hubble Space Telescope have resulted in many discoveries and created new interest in the study of the universe. Using four-color throughout, Astronomy & Astrophysics describes the different techniques and instruments employed in the study of the universe and the results obtained with discussion on both theory and observation. The book covers topics such as, "minor" planets, radio astronomy, astronomical telescopes, measurement of solar brightness distribution, black holes, and the Einstein effect. A CD-ROM with color figures and simulations accompanies the book.

Astrophysics On The Threshold Of The 21st Century

Author: N. S. Kardashev
Publisher: Taylor & Francis
ISBN: 9782881248177
Size: 77.82 MB
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The book examines the degree of mobility of earnings over the course of time. Do people keep the same place or is there a great deal of fluidity? The book reviews the literature which has recently become available on earnings, boththeoretical and empirical. Also considered is the measurement of mobility, which the book goes on to asses in the US, UK, France, Canada, Germany and other countries. Exaamining the results of all the findings, the main conclusions are drawn, and are followed by scope for future research.

A Brief History Of Astronomy And Astrophysics

Author: Lang Kenneth R
Publisher: World Scientific
ISBN: 9813233850
Size: 22.73 MB
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This book traces out the unfolding history of important discoveries in astronomy and astrophysics, and anchors our present understanding of the Universe within the findings and personalities of accomplished astronomers. They have used telescopes and instruments to extend our vision to places that cannot be seen with the unaided eye, discovered a host of unanticipated objects, found out how various parts of the night sky are related, and discovered that the Universe is larger, more complex, and older than has been previously thought. This comprehensive historical approach to the present state of astronomy is a unique aspect of the book.

Das Universum F R Eilige

Author: Neil deGrasse Tyson
Publisher: Carl Hanser Verlag GmbH Co KG
ISBN: 3446259538
Size: 64.42 MB
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Der nach Stephen Hawking prominenteste Astrophysiker des Planeten hat das ultimative Kompendium über den Kosmos verfasst. In Neil deGrasse Tysons Bestseller ist alles versammelt, was wir über das Universum wissen: über Exoplaneten und Dunkle Energie, über Zwerggalaxien und den Urknall. Der Autor begeistert wie kein Zweiter mit funkelndem Witz für die Wunder des Weltalls. Zugleich regt er zum Nachdenken über unseren Platz im Universum an und zu Demut angesichts kosmischer Skalen. Sein „Universum für Eilige“ ist das perfekte Buch für alle, die auf nur 200 Seiten die heutige Astrophysik verstehen – und sich dabei auf hohem Niveau unterhalten lassen möchten.

The Physical Universe

Author: Frank H. Shu
Publisher: University Science Books
ISBN: 9780935702057
Size: 80.81 MB
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This is a truly astonishing book, invaluable for anyone with an interest in astronomy. Physics Bulletin Just the thing for a first year university science course. Nature This is a beautiful book in both concept and execution. Sky & Telescope

The Story Of Astronomy

Author: Heather Couper
Publisher: Hachette UK
ISBN: 1844037266
Size: 60.73 MB
Format: PDF, Kindle
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Journey through time and space with the greatest astronomers in history. Astronomy is one of the oldest of all the sciences. And yet, its history is also so much more than the history of a science, reflecting our entire culture and providing insight into the evolution of humankind's ideas and ideals over the centuries. This fascinating book tells the amazing story of the development of astronomy, through the key characters in its history from Copernicus to Hubble and Halley, the excitement of new discoveries and the ways in which the history of the skies has affected our lives and how we look at the planet on which we live.The Story of Astronomy celebrates changing perspectives (from the Ancient Greeks to the latest scientific advances) as different cultures, philosophers and scientists sought to come to terms with their, and earth's, place in the Cosmos.Exhaustively researched and containing interviews with many of the world's leading astronomers, including Stephen Hawking, this is the ultimate history of how the universe has revealed itself to us over the millennia.

Galileo And 400 Years Of Telescopic Astronomy

Author: Peter Grego
Publisher: Springer
ISBN: 9781441955920
Size: 69.33 MB
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In 1609 Galileo first used his telescope to kick start the science of observational astronomy - an event that proved to be of enormous historic, scientific, and cultural importance. Galileo and 400 Years of Telescopic Astronomy will feature the life and achievements of Galileo, around which has pivoted the story of four centuries of telescopic astronomy. The book will detail how astronomy has progressed through four centuries and contain glimpses of future space research and astronomy goals. Uniquely, interwoven with the text will be a range of practical projects for backyard astronomers in which to participate, projects that serve to illustrate many of Galileo's scientific discoveries.