Book description
Astronomy as a science began with the Ionian philosophers, with whom Greek philosophy and mathematics also began. While the Egyptians and Babylonians had accomplished much of astronomical worth, it remained for the unrivalled speculative genius of the Greeks, in particular, their mathematical genius, to lay the foundations of the true science of astronomy. In this classic study, a noted scholar discusses in lucid detail the specific advances made by the Greeks, many of whose ideas anticipated the discoveries of modern astronomy.Pythagoras, born at Samos about 572 B.C., was probably the first to hold that the earth is spherical in shape, while his later followers anticipated Copernicus with the then-startling hypothesis that the earth was not the center of the universe but a planet like the others. Heraclides of Pontus (c. 388-315 B.C.), a pupil of Plato, declared that the apparent daily rotation of the heavenly bodies is due, not to a rotation of the heavenly sphere about an axis through the center of the earth, but to the rotation of the earth itself around its own axis. Secondly, Heraclides discovered that Venus and Mercury revolve around the sun like satellites. Perhaps the greatest astronomer of antiquity was Hipparchus, who flourished between 161 and 126 B.C. He compiled a catalog of fixed stars to the number 850 or more, made great improvements in the instruments used for astronomical observations, and discovered the precession of the equinoxes, among other accomplishments. The astronomy of Hipparchus takes its definitive form in the Syntaxis (commonly called the Almagest) of Ptolemy, written about A.D. 150, which held the field until the time of Copernicus.The extraordinary achievements of these and many more Greek theorists are given full coverage in this erudite account, which blends exceptional clarity with a readable style to produce a work that is not only indispensable for astronomers and historians of science but easily accessible to science-minded lay readers.
Mercury Reborn
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Fresh Peper
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Whipsaw
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Despair
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Tunez
ListenBook Pro offers amazing value with unlimited audiobook length and noise reduction features. ListenBook's integration of artwork and metadata adds a visually appealing touch to my library. πΆπ Replacing tunes with stories β my house is alive with the sound of narration! π§π
EchoExplorer
The customizable controls and playback options cater perfectly to different audiobook preferences. The app's compatibility with CarPlay is a fantastic bonus. It keeps me entertained during long drives.
K-Tin Man
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DreamDasher
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Nickname Master
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Low Voltage
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Wooden German
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Trash
ListenBook Pro's noise reduction feature is a fantastic addition that enhances my audio experience. This app has made me realize that there's always time for a good book.
RiddleRover
I've become the storyteller of my family, sharing the amazing audiobooks I've discovered. With this app, reading has become an integral part of my daily routine. The user-friendly interface and smooth navigation make this app a pleasure to use daily.
Star Sword
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Low Voltage
I'm rediscovering my favorite classics in a whole new way β through audiobooks! ListenBook has seamlessly integrated into my daily routine, becoming an indispensable companion for various activities. Its user-friendly interface, features, and performance make it a must-have for audiobook enthusiasts.
Howitzer Rise
ListenBook has completely changed how I enjoy audiobooks. The app is packed with features like customizable skip intervals, playback speed, and sleep timers. The interface is clean and easy to navigate. Five stars! ListenBook is the best audiobook player Iβve ever used. The app is packed with features like customizable skip intervals, playback speed, and sleep timers. The interface is clean and easy to navigate, making it a joy to use. Five stars!
Playing a wide variety of audio formats
Works on all devices with iOS 13 and newer
Huge amount of features for a small price
Frequent updates to add new features and improve existing ones
Advanced playback controls
Live sound processing
Changing the timbre of the reader's voice and noise reduction
Translated into more than 20 languages
If you love listening to fiction audiobooks, ListenBook has features to make the process easier.
Edit book data: title, author, cover
Use equalizer to make the sound comfortable for you
Adjust the playback speed
Enjoy dark and light app themes
Supported formats: MP3, M4B, AWB, FLAC, OGG audio files and many more (must be DRM free)
Auto-Bookmarks make it easy to find your place
AirPlay support allows redirection of audio output.
VoiceOver support
Dark mode for night owls
Convenient bookmarking system helps you mark the most important places.
Unlimited bookmarks for each audiobook
Put your own cover on the wager
Share your audiobook with friends
Lock-screen control
Customise app with extensive options
Sleep timer with shake to reset, set custom notification sounds, and a few unique options
Auto rewind depending on paused time, customize rewind times to your liking
Removing background noise from recordings made in classrooms and meetings
Changing the timbre of the reader's voice for a better listening experience