Spektrum Kompakt Astrobiologie
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Spektrum Kompakt Astrobiologie
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Author : Spektrum der Wissenschaft
language : de
Publisher: Spektrum der Wissenschaft
Release Date : 2023-10-09
Spektrum Kompakt Astrobiologie written by Spektrum der Wissenschaft and has been published by Spektrum der Wissenschaft this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-09 with Science categories.
Das Wissen darum, dass unser Planet nicht mehr ist als ein blassblauer Punkt, macht demütig. Wir haben keine herausragende Stellung im überwältigenden Dunkel des Alls. Doch vielleicht gibt es da draußen auf irgendeinem anderen Staubkörnchen, das im Licht seines Sterns tanzt, völlig fremde Lebensformen. Sie wären dem gleichen kosmischen Schicksal unterworfen und uns somit auf eine besondere Weise verbunden. Wie sähe ihre Welt wohl aus, und könnten wir sie je erreichen?
Spektrum Kompakt Unendlich
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Author : Spektrum der Wissenschaft
language : de
Publisher: Spektrum der Wissenschaft
Release Date : 2020-07-09
Spektrum Kompakt Unendlich written by Spektrum der Wissenschaft and has been published by Spektrum der Wissenschaft this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-09 with Science categories.
Seit Jahrtausenden fasziniert uns das Konzept der Unendlichkeit. Umso erstaunlicher ist es, dass es Mathematikern erst im 19. Jahrhundert gelang, die unvorstellbaren Größen konsistent in ihre Modelle einzubauen. Was sie dabei herausfanden, verwundert noch heute viele Menschen: Es gibt nicht nur eine Art von Unendlichkeit, sondern unendlich viele! Wie gewöhnliche Zahlen lassen sich einige von ihnen ordnen – bei anderen ist man sich dagegen nicht einmal sicher, ob sie wirklich existieren. Die Welt der Unendlichkeiten steckt noch heute voller Rätsel und Überraschungen; einige davon möchten wir Ihnen hier vorstellen.
Spektrum Kompakt Entstehung Des Lebens
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Author : Spektrum der Wissenschaft
language : de
Publisher: Spektrum der Wissenschaft
Release Date : 2024-06-19
Spektrum Kompakt Entstehung Des Lebens written by Spektrum der Wissenschaft and has been published by Spektrum der Wissenschaft this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-19 with Science categories.
Die schlechte Nachricht vorweg: Wie das irdische Leben entstanden ist, werden wir wohl nie genau wissen. Die einstigen Zwischenstufen dieses Prozesses existieren längst nicht mehr und dürften auch keine Spuren hinterlassen haben. Jedenfalls kennen wir keine Fossilien präbiotischer Strukturen. Wie auch: Es handelte sich vermutlich um chemische Reaktionsnetze in winzigen Bläschen oder Hohlräumen – was hätte an denen versteinern sollen? Selbst wenn es Fossilien von ihnen gäbe, ließen sie sich wohl nicht von mineralischen Gebilden unterscheiden. Die gute Nachricht: Wir können uns dem Geheimnis des Lebens nähern, ohne seinen ursprünglichen Werdegang bis ins letzte Detail zu rekonstruieren. Wahrscheinlich gibt es viele Möglichkeiten, wie aus unbelebter Materie ein abgrenzbares System aus chemischen Reaktionen hervorgehen kann, das sich selbst erhält und vervielfältigt und an dem die Evolution anzusetzen vermag. Gelänge es, einen solchen Prozess im Labor ablaufen zu lassen, hätten wir empirisch gezeigt, dass er grundsätzlich möglich ist. Forschungsgruppen rund um den Globus arbeiten daran, und sie machen Fortschritte. Dieses Kompakt stellt Ihnen einige vor.
Spektrum Kompakt Exoplaneten
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Author : Spektrum der Wissenschaft
language : de
Publisher: Spektrum der Wissenschaft
Release Date : 2022-02-23
Spektrum Kompakt Exoplaneten written by Spektrum der Wissenschaft and has been published by Spektrum der Wissenschaft this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-23 with Science categories.
Gibt es eine zweite Erde? Oder zumindest weitere Planeten außerhalb unseres Sonnensystems, die ebenfalls Leben beherbergen? Diese Fragen schwingen bei jeder Entdeckung eines Exoplaneten mit, der sich innerhalb der habitablen Zone bewegt, in der die Bedingungen geeignet wären für flüssiges Wasser und damit eventuell auch für lebende Organismen. Und wie würden sich deren Spuren überhaupt verraten? Verfeinerte Instrumente und Analysemethoden erlauben inzwischen nicht nur, mehr potenzielle Kandidaten zu entdecken, sondern auch, aus den Signalen mehr Informationen herauszulesen. Dabei vergleichen die Forschenden die Daten auch mit Beobachtungen der Venus – ihre Entwicklung, so die Überzeugung, könnte Hinweise darauf geben, was uns unter den inzwischen beinahe 5000 bekannten fernen Welten im All erwartet.
Introduction To Astronomy And Astrophysics
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Author : Arnold Hanslmeier
language : en
Publisher: Springer Nature
Release Date : 2023-01-30
Introduction To Astronomy And Astrophysics written by Arnold Hanslmeier and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-30 with Science categories.
This textbook provides the basic theoretical and practical knowledge of astronomy and astrophysics. It provides an overview from classical astronomy and observational methods to solar physics and astrophysics of stars and galaxies. It concludes with chapters on cosmology, astrobiology, and mathematical and numerical methods. Numerous color illustrations, examples of calculations, and exercises with solutions make this work a useful companion to undergraduate astronomy lectures. The book is suitable for students of physics and astronomy at teacher training level or in the Bachelor's degree - but also people interested in natural sciences with appropriate basic knowledge of mathematics and physics will find here an appealing introduction to the subject. This fourth edition has been updated and revised with respect to the latest developments in astronomy. The chapter on mathematical methods has been redesigned and the software used is now exclusively Python. From the contents: Spherical astronomy - History of astronomy - Celestial mechanics - Astronomical instruments - Physics of the bodies of the solar system - The Sun - State variables of the stars - Stellar atmospheres - Stellar structure - Stellar evolution - Interstellar matter - The Galaxy - Extragalactic systems - Cosmology - Astrobiology - Mathematical methods. This book is a translation of the original German 4th edition Einführung in Astronomie und Astrophysik by Arnold Hanslmeier, published by Springer-Verlag GmbH Germany, part of Springer Nature in 2020. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors.
Wie Alles Anfing
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Author : Manfred Bühner
language : de
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2022-07-18
Wie Alles Anfing written by Manfred Bühner and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-18 with Science categories.
Wie entstand das Leben auf der Erde? Dieses Werk beschreibt anschaulich die Bedeutung der Chemie als Grundlage der Evolution: vom Sternenstaub über selbst-kopierende Moleküle zur chemischen Fortpflanzung und zur Entwicklung der ersten Zellen, dem Beginn der Biologie. Eingehend wird die Bedeutung von Mutationen erläutert, die zu Photosynthese und komplexen Zellen führten, was schließlich die ungeheure Vielfalt mehrzelliger Lebewesen möglich machte.
Chemical Evolution
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Author : Bernd Markert
language : en
Publisher: Springer
Release Date : 2015-02-19
Chemical Evolution written by Bernd Markert and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-19 with Science categories.
This book is written for researchers and students interested in the function and role of chemical elements in biological or environmental systems. Experts have long known that the Periodic System of Elements (PSE) provides only an inadequate chemical description of elements of biological, environmental or medicinal importance. This book explores the notion of a Biological System of the Elements (BSE) established on accurate and precise multi-element data, including evolutionary aspects, representative sampling procedures, inter-element relationships, the physiological function of elements and uptake mechanisms. The book further explores the concept Stoichiometric Network Analysis (SNA) to analyze the biological roles of chemical species. Also discussed is the idea of ecotoxicological identity cards which give a first-hand description of properties relevant for biological and toxicological features of a certain chemical element and its geo biochemically plausible speciation form. The focus of this book goes beyond both classical bioinorganic chemistry and toxicology.
George And The Big Bang
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Author : Lucy Hawking
language : en
Publisher: Random House
Release Date : 2014-02-28
George And The Big Bang written by Lucy Hawking and has been published by Random House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-02-28 with Juvenile Fiction categories.
Meet George. He's an ordinary boy with an incredible secret - the power to go on intergalactic adventures! Join him as he battles a sinister rebel-scientist, who's hell bent on sabotaging the most exciting - and dangerous - experiment of the century. A deadly bomb is ticking. The whole world is watching. Can George stop the second big bang? Featuring the latest scientific theories - plus all-new content about the Higgs boson!
Planet Of The Ants The Hidden Worlds And Extraordinary Lives Of Earth S Tiny Conquerors
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Author : Susanne Foitzik
language : en
Publisher: The Experiment, LLC
Release Date : 2022-03-29
Planet Of The Ants The Hidden Worlds And Extraordinary Lives Of Earth S Tiny Conquerors written by Susanne Foitzik and has been published by The Experiment, LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-29 with Nature categories.
“Beautifully illustrated with color photographs, the book offers a view into parallels between seemingly out-of-this-world ant societies and our own, including cities, an intense work ethic, division of labor, intragroup cooperation combined with genocidal outgroup warfare, even a kind of to-the-death national loyalty. The authors’ scientific rigor is matched by their joy in their subjects.”—The Wall Street Journal Shortlisted for the 2022 Helen and Kurt Wolff Translator’s Prize This sweeping portrait of the world’s uncontested six-legged conquerors will open your eyes to the secret societies thriving right beneath your feet—and shift your perspective on humanity. The closer you get to ants, the more human they look. Ants build megacities, tend gardens, wage wars, and farm livestock. Ants have flourished since the age of the dinosaurs. There are one million ants for every one of us. Engineered by nature to fulfill their particular roles, ants flawlessly perform a complex symphony of tasks to sustain their colony—seemingly without a conductor—from fearsome army ants, who stage twelve-hour hunting raids where they devour thousands, to gentle leafcutters cooperatively gardening in their peaceful underground kingdoms. Acclaimed biologist Susanne Foitzik has traveled the globe to study these master architects of Earth. Joined by journalist Olaf Fritsche, Foitzik invites readers deep into her world in both the field and the lab. Exploring these insects’ tiny yet incredible lives will inspire new respect for ants as a global superpower. Publisher’s note: Planet of the Ants was previously published in hardcover as Empire of Ants.
Five Billion Years Of Solitude
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Author : Lee Billings
language : en
Publisher: Penguin
Release Date : 2013-10-03
Five Billion Years Of Solitude written by Lee Billings and has been published by Penguin this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-03 with Science categories.
“A definitive guide to astronomy’s hottest field.” —The Economist Since its formation nearly five billion years ago, our planet has been the sole living world in a vast and silent universe. But over the past two decades, astronomers have discovered thousands of “exoplanets,” including some that could be similar to our own world, and the pace of discovery is accelerating. In a fascinating account of this unfolding revolution, Lee Billings draws on interviews with the world’s top experts in the search for life beyond earth. He reveals how the search for exoplanets is not only a scientific challenge, but also a reflection of our culture’s timeless hopes, dreams, and fears.