Popular Astronomy a Concise Elementary Treatise On the Sun Planets Satellite
Popular Astronomy a Concise Elementary Treatise On the Sun Planets Satellite
O M Ormsby Macknight Mitchel
The book Popular Astronomy a Concise Elementary Treatise On the Sun Planets Satellite was written by author O M Ormsby Macknight Mitchel Here you can read free online of Popular Astronomy a Concise Elementary Treatise On the Sun Planets Satellite book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Popular Astronomy a Concise Elementary Treatise On the Sun Planets Satellite a good or bad book?
What reading level is Popular Astronomy a Concise Elementary Treatise On the Sun Planets Satellite book?
To quickly assess the difficulty of the text, read a short excerpt:
THE ASTEROIDS. 133 When carefully watched some of them exhibit rapid changes in the intensity of their light, sometimes sud- denly increasing in brightness, and again as rapidly fad ing out. These changes have been accounted for on the supposition that these worlds are indeed angular frag- ments, and that, rotating on an axis, they sometimes present large reflective surfaces, and again angular points, from whence but a small amount of light reaches the earth. As the stars of the smaller magnitu...des are becoming more extensively and accurately charted, tlieir places being determined with great precision, we may antici- pate a large increase in the number of known asteroids during the remainder of the current century, and so forward ; for if so great a multitude has already been re- vealed almost without effort, and nearly ty accident, what must be the result when a systematic scheme of examination shall have been executed, based on an ac- curate knowledge of the places of all the stars down to the twelfth magnitude ?
You can download books for free in various formats, such as epub, pdf, azw, mobi, txt and others on book networks site. Additionally, the entire text is available for online reading through our e-reader. Our site is not responsible for the performance of third-party products (sites).
User Reviews: