The Demon-Haunted World: Science as a Candle in the Dark

By Carl Sagan

"A excellent ebook . . . A lively safeguard of technology . . . From the 1st web page to the final, this e-book is a manifesto for transparent thought."

*Los Angeles Times

"POWERFUL . . . A stirring security of proficient rationality. . . wealthy in amazing info and lovely writing."

*The Washington publish booklet World

How do we make clever judgements approximately our more and more technology-driven lives if we do not comprehend the variation among the myths of pseudoscience and the testable hypotheses of technological know-how? Pulitzer Prize-winning writer and amazing astronomer Carl Sagan argues that clinical pondering is necessary not just to the pursuit of fact yet to the very health of our democratic institutions.

Casting a large internet via background and tradition, Sagan examines and authoritatively debunks such celebrated fallacies of the previous as witchcraft, religion therapeutic, demons, and UFOs. And but, disturbingly, in ultra-modern so-called details age, pseudoscience is burgeoning with tales of alien abduction, channeling previous lives, and communal hallucinations commanding transforming into awareness and admire. As Sagan demonstrates with lucid eloquence, the siren tune of unreason isn't just a cultural flawed flip yet a perilous plunge into darkness that threatens our most simple freedoms.

"COMPELLING."

*USA Today

"A transparent imaginative and prescient of what reliable technological know-how potential and why it makes a distinction. . . . A testimonial to the facility of technological know-how and a caution of the risks of unrestrained credulity."

*The Sciences

"PASSIONATE."

*San Francisco Examiner-Chronicle

Show description

Cosmic Heritage: Evolution from the Big Bang to Conscious Life

By Peter Shaver

This ebook follows the evolutionary path the entire manner from the massive Bang 13.7 billion years in the past to wakeful existence this present day. it's an obtainable introductory booklet written for the layperson – someone attracted to the ‘big photograph’ coming from glossy technology. It covers a variety of subject matters together with the foundation and evolution of our universe, the character and beginning of lifestyles, the evolution of lifestyles together with questions of beginning and dying, the evolution of cognition, the character of cognizance, the potential for extraterrestrial existence and the way forward for the universe. The e-book is written in a story variety, as those subject matters are all components of a unmarried tale. It concludes with a dialogue at the nature and way forward for science.

Show description

Extreme Cosmos: A Guided Tour of the Fastest, Brightest, Hottest, Heaviest, Oldest, and Most Amazing Aspects of Our Universe

By Bryan Gaensler

A most sensible astronomer explores the universe in the course of the lens of its such a lot jaw-dropping extremes.

The universe is all approximately extremes, and during this enticing and thought-provoking publication, astronomer Bryan Gaensler offers a whirlwind travel of the galaxies, with an emphasis on its quickest, most well-liked, heaviest, brightest, oldest, densest, or even loudest components. From supernova explosions 1000000000 occasions brighter than the solar to an asteroid the scale of a seashore ball, severe Cosmos deals a desirable, clean, and knowledgeable standpoint of the amazing richness of the universe, and the really good physics that glossy astronomy has printed.

Show description

Astronomy: Journey to the Cosmic Frontier

Astronomy: trip to the Cosmic Frontier, sixth version, offers sufficient content material and historical past in astronomy so the coed could be capable of stick with present advancements in astronomy years when they whole the path. The old improvement of astronomy is emphasised to teach that astronomy, like different sciences, advances during the efforts of many scientists, and to teach how current rules were built.

Show description

The Life and Death of Stars

By Kenneth R. Lang

During this well-illustrated textual content, Kenneth R. Lang explains the existence cycle of stars, from the dense molecular clouds which are stellar nurseries to the enigmatic nebulae a few stars depart in the back of of their violent ends. freed from mathematical equations and technical jargon, Lang's vigorous and available textual content offers actual insights into how stars corresponding to our solar are born, what fuels them and retains them brilliant, how they evolve, and the techniques wherein they ultimately die. The ebook demonstrates the sheer scope and diversity of stellar phenomena within the context of the universe as an entire. Boxed concentration parts increase and magnify the dialogue for readers searching for extra intensity. that includes greater than a hundred and fifty figures, together with colour plates, The existence and dying of Stars is a contemporary and up to date account of stars written for a huge viewers, from armchair astronomers and renowned technology readers to scholars and lecturers of technology.

Show description

Weird Astronomy: Tales of Unusual, Bizarre, and Other Hard to Explain Observations (Astronomers' Universe)

A e-book that might attract all who're attracted to strange celestial occurences, this quantity information quite a few abnormal astronomical observations and features a variety of fun anecdotes that reveal the importance of those “weird” phenomena.

Show description

Discours sur l'origine de l'univers

D'où vient l'univers ? Et d'où vient qu'il y a un univers ? Irrépressiblement, ces questions se posent à nous. Et dès qu'un discours prétend nous éclairer, nous tendons l'oreille, avides d'entendre l'écho du tout finest sign : les accélérateurs de particules vont bientôt nous révéler l'origine de l'univers en produisant des "big bang sous terre" ; les données recueillies par le satellite tv for pc Planck nous dévoiler le "visage de Dieu" ; certains disent même qu'en vertu de los angeles loi de l. a. gravitation l'univers a pu se créer de lui-même, à partir de rien... Le grand dévoilement ne serait donc devenu qu'une affaire d'ultimes petits pas ? Rien n'est moins sûr... motor vehicle de quoi parle los angeles body quand elle parle "d'origine" ? Qu'est-ce que les théories actuelles sont réellement en mesure de nous révéler ? A bien les examiner, les views que nous offre los angeles cosmologie contemporaine sont plus vertigineuses encore que tout ce que nous avons imaginé : l'univers a-t-il jamais commencé ?

Show description

Astronomical Optics (2nd Edition)

By Daniel J. Schroeder

This e-book presents a unified therapy of the features of telescopes of all kinds, either these whose functionality is determined through geometrical aberrations and the influence of the ambience, and people diffraction-limited telescopes designed for observations from above the ambience. The emphasis all through is on easy rules, similar to Fermat's precept, and their software to optical structures in particular designed to photograph far away celestial sources.
The booklet additionally comprises thorough discussions of the foundations underlying all spectroscopic instrumentation, with distinctive emphasis on grating tools used with telescopes. An creation to adaptive optics presents the wanted history for additional inquiry into this quickly constructing area.

* Geometrical aberration thought in accordance with Fermat's principle
* Diffraction idea and move functionality method of near-perfect telescopes
* Thorough dialogue of 2-mirror telescopes, together with misalignments
* uncomplicated rules of spectrometry; grating and echelle instruments
* Schmidt and different catadioptric telescopes
* ideas of adaptive optics
* Over 220 figures and approximately ninety precis tables

Show description

Using Commercial Amateur Astronomical Spectrographs (The Patrick Moore Practical Astronomy Series)

By Jeffrey L. Hopkins

Amateur astronomers drawn to studying extra approximately astronomical spectroscopy now have the advisor they want. It presents specified information regarding tips on how to start inexpensively with low-resolution spectroscopy, after which tips on how to circulate directly to extra complex  high-resolution spectroscopy. Uniquely, the directions focus greatly at the functional elements of utilizing commercially-available spectroscopes, instead of easily explaining how spectroscopes work.

The booklet encompasses a transparent clarification of the laboratory conception at the back of astronomical spectrographs, and is going directly to largely disguise the sensible software of astronomical spectroscopy intimately. 4 well known and good value commercially on hand diffraction grating spectrographs are used as examples. the 1st is a low-resolution transmission diffraction grating, the celebrity Analyser spectrograph. the second one is a cheap fiber optic coupled bench spectrograph that may be used to benefit extra approximately spectroscopy. The 3rd is a newcomer, the ALPY six hundred spectrograph. The fourth spectrograph thought of is on the different finish of the marketplace either in functionality and price, the high-resolution Lhires III. whereas significantly dearer, this can be a renowned and perfect clinical software, that permits extra complicated beginner astronomers to provide scientifically helpful data.

With all of those instruments in position, the novice astronomer is well-prepared to forger deeper into the evening sky utilizing spectroscopy.

Show description

Astronomical Applications of Astrometry: Ten Years of Exploitation of the Hipparcos Satellite Data

By Michael Perryman

The Hipparcos satellite tv for pc, built and introduced by means of the eu area enterprise (ESA) in 1989, was once the 1st area project devoted to astrometry - the exact size of positions, distances, and correct motions of stars. among the major achievements of its measurements are refining the cosmic distance scale, characterizing the large-scale kinematic motions within the sunlight local, offering detailed luminosities for stellar modelling, and confirming Einstein's prediction of the influence of gravity on starlight. This authoritative account of the Hipparcos contributions during the last decade is an exceptional reference for astronomers, astrophysicists and cosmologists. It studies the functions of the knowledge in several components, describing the topic and the state-of-the-art sooner than Hipparcos, and summarizing all significant contributions to the subject made by way of Hipparcos. It includes a exact review of the Hipparcos and Tycho Catalogues, their annexes and their updates. each one bankruptcy ends with entire references to proper literature.

Show description

1 3 4 5 6 7 8