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.
Midnight Rambler
ListenBook has become my constant companion, filling my days with captivating narratives. π± Accessing my favorite stories has never been this straightforward β this app's functionality is a bookworm's dream come true. ππ« ListenBook has truly transformed my audiobook experience. The sleek interface, extensive format support, and easy downloading options make it my go-to app! ListenBook Pro's tone adjustment feature is a playful addition that lets me tweak the audiobook experience. The speed adjustment feature is my secret weapon for studying complex materials.
Swedish Twizz
With ListenBook, I can immerse myself in captivating stories and enriching knowledge, all in one app. ListenBook's audio filters are a valuable tool for customizing my audiobook playback to perfection. I'm blown away by the app's performance. It's fast, reliable, and tailored for audiobook lovers.
Pinup Diva
With this app, audiobook listening has become a convenient and enjoyable part of my everyday life. I can't imagine my daily activities without this app β it's my go-to for staying informed and entertained. ListenBook's extensive format support makes it the ultimate audiobook app for any audiobook lover.
Silver Agent
Audiobooks have made my workouts more enjoyable, and I'm seeing results! The customizable controls and playback options cater perfectly to different audiobook preferences.
California Goddess
This app has reignited my passion for literature β I'm devouring books like never before. This app's compatibility with various devices ensures that I can enjoy my audiobooks wherever I go. The ability to download audiobooks directly is fantastic. ListenBook is very convenient.
CirrusFlash
The compatibility with CarPlay and Apple Watch sets ListenBook apart from the rest. Adjusting the tone of the voice adds a unique touch to my listening experience. I love the personalization!
Mad Rascal
The appβs design is sleek and modern. ListenBook is my favorite audiobook player. ListenBookβs playback speed control is very useful. I can listen at my own pace.
Grabber
I can't remember the last time I was this excited about 'reading' books! ListenBook has made managing my audiobook collection a breeze. Library organization is top-notch.
Indigo Red
I love how this app seamlessly integrates into my busy schedule, making multitasking a breeze. ππ Rekindling my passion for books β this app has sparked a reading revolution in my daily life! π₯π The book groups feature is a thoughtful addition. It helps me keep my series and related titles together. The app's versatility in downloading audio is impressive. It streamlines the process and saves time.
Whipsaw
This app is a must-have for any book lover on the go β it's my daily companion. Bookmarks are a lifesaver for my study materials. I can easily revisit important sections.
Judge
The app's features, like the sleep timer, make it clear that it's designed with readers in mind. I can't get enough of this app's versatile features β from playback speed to bookmarking, it's all there. This app's convenience has turned my exercise sessions into enlightening moments. With ListenBook Pro, I'm no longer limited by audiobook length. It's a liberating experience!
Lucky Brandy
ListenBook's powerful audio downloading features make it easy to keep my content at my fingertips. The quick access to chapters and controls makes the app a joy to use. I'm always in control.
Purity
This app is a gift for anyone with a busy lifestyle β I can enjoy books while doing chores! ListenBook has transformed my listening habits, making them more engaging and enjoyable. ListenBook has taken my listening pleasure to new heights β it's a true audio marvel.
Miss Murder
ListenBook's library organization keeps my audiobooks neat and accessible. A true organizational lifesaver! Adjusting the tone of the narrator's voice is a unique touch β it's like having a personalized reading.
Opulent Gamer
I used to struggle to find time for books β now, I listen while doing chores! I can't imagine my life without this app β it's my constant source of books. This app's ease of use has made reading more accessible and enjoyable than ever before. This app is my audiobook haven. With a user-friendly interface and features like audio filters, I'm engrossed in stories like never before. ππ
Vicious Street
I'm hooked on this app's sleek design and seamless performance β it's a must-have for any reader. With this app, I'm discovering the joy of reading during my commutes. Automatic artwork and metadata extraction add a professional touch to my audiobook library. Adjusting the tone of the voice is a game-changer. It's like customizing my listening experience.
Honey
As a visually impaired person, this app has opened up a new world of stories for me. ListenBook has turned my audio content into an immersive, personalized, and unforgettable experience. Efficiency and ease combined β this app is a must-have for book lovers.
Flakes
I can't get enough of this app's versatile features β from playback speed to bookmarking, it's all there. πββοΈπ I'm conquering literary marathons with ease, all thanks to this app's intuitive controls and smooth functionality. π±π Sharing audiobooks with friends through AirDrop is a delightful way to share the joy of storytelling.
Virgo Moon
Being able to download audiobooks for offline listening is a game-changer. The audio filters to adjust playback speed and volume are a fantastic addition for customizing my experience.
Backstreet
I've fallen in love with literature all over again, thanks to this incredible app. The customizable controls and playback options cater perfectly to different audiobook preferences. The ability to download audiobooks directly is fantastic. ListenBook is very convenient.
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