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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: 14.28 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.’

Das Universum F R Eilige

Author: Neil deGrasse Tyson
Publisher: Carl Hanser Verlag GmbH Co KG
ISBN: 3446259538
Size: 56.87 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.

On The Shores Of The Unknown

Author: Joseph Silk
Publisher: Cambridge University Press
ISBN: 9780521836272
Size: 42.85 MB
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Illustrated story of the Universe from its beginnings to its ultimate fate.

After The First Three Minutes

Author: T. Padmanabhan
Publisher: Cambridge University Press
ISBN: 9780521629720
Size: 61.33 MB
Format: PDF
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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.

The Manga Guide To The Universe

Author: Kenji Ishikawa
Publisher: No Starch Press
ISBN: 1593272677
Size: 69.55 MB
Format: PDF, Mobi
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Uses the story in graphic novel format of three girls in a drama club to discuss the universe, introducing such concepts as dark matter, cosmic expansion, and the big bang.

The Physical Universe

Author: Frank H. Shu
Publisher: University Science Books
ISBN: 9780935702057
Size: 78.89 MB
Format: PDF
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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

Galileo And 400 Years Of Telescopic Astronomy

Author: Peter Grego
Publisher: Springer
ISBN: 9781441955920
Size: 74.42 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.

A Companion To Astronomy And Astrophysics

Author: Kenneth Lang
Publisher: Springer Science & Business Media
ISBN: 0387333673
Size: 35.91 MB
Format: PDF, Kindle
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Astronomy and Astrophysics is a comprehensive, fundamental, and up-to-date reference book. It is filled with vital information and basic facts for amateur astronomers and professional astrophysicists, and for anyone interested in the Universe, from the Earth and other planets to the stars, galaxies and beyond. An exceptionally thorough Index cross-references concepts, discoveries and individuals in both the Timeline section and Dictionary section. The combined result is a unique stand-alone reference volume in which the reader can quickly locate information, while also discovering new and unexpected knowledge.

Cosmos

Author: John North
Publisher: University of Chicago Press
ISBN: 0226594416
Size: 11.61 MB
Format: PDF, ePub
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The definitive history of humanity's search to find its place within the universe. North charts the history of astronomy and cosmology from the Paleolithic period to the present day.