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JP "oz7acs" (Denmark)

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Practical Astronomy with your Calculator
Practical Astronomy with your Calculator
by Peter Duffett-Smith
Edition: Paperback

1 of 1 people found the following review helpful
4.0 out of 5 stars Hands-on practical astronomy!, 2 Jan. 2010
I like this book, because it is very practical, well structured and easy to use.
Inside 'Practical Astronomy with your calculator' you can find all the most common practical
problems of astronomy and ready to use recipes of how to calculate and find the solutions to
these problems. The best thing of it all is that it can all be done with a rather simple, but
modern calculator that includes trigonometric functions. This means that no complex derivatives,
integration or programming is needed!
I tried for example to calculate my local sidereal time (or 'star time') here in Denmark at any
date and time of the year. Then I double checked the results with online 'astronomical watches'
and it all fit very well....
Try to calculate any of the astronomical relations yourself and you will know what I mean!

The Invisible Universe: The Story of Radio Astronomy
The Invisible Universe: The Story of Radio Astronomy
by Gerrit L. Verschuur
Edition: Hardcover
Price: £19.99

2 of 2 people found the following review helpful
3.0 out of 5 stars The Invisible Universe of Sweet Talking, 30 April 2008
This book disappointed me a lot! It contains many topics, but they are all covered very briefly and only on the surface. When defining radio astronomy, why aren't concepts like radio brightness or blackbody radiation explaned? When telling about the radio sun, why isn't the intensity of the sun's radio spectrum shown? When mentioning strong radio sources like Cassiopeia A and even showing its radiograph, why isn't the apparent size and its position in e.g. equatorial coordinates shown, not to mention its spectrum again? Many scientific facts are missing about the celestial objects mentioned in this book and the few facts that are there could quite easily be mentioned in popular science magazines as well. Much more could be expected of a book with such a promissing title!
(It might be that earlier editions contained more facts, but in stead of removing them all together, why didn't the author put them in some nice appendices??!)

The Radio Universe
The Radio Universe
by James Stanley Hey
Edition: Paperback

5.0 out of 5 stars An interesting overview of the radio universe, 12 Nov. 2007
This review is from: The Radio Universe (Paperback)
This book is an excellent and easy read 'popular radio astronomy book' in the sense that it covers a lot of topics with many illustrations from radio waves via radio sources in the universe to cosmology and it explains difficult mechanisms in laymans terms. It also compares many of the radio sources with known visible objects of the sky. A great way to get introduced to the noise of the universe. However, the only regret is that it does not exist in a newer and more updated edition. The newest edition that I could find was the third edition from 1983...

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