3.0 out of 5 stars
How the Telescope Opened our Eyes and Minds to the Heavens, Feb 21 2002
This review is from: Seeing And Believing (Paperback)
The key word in the subtitle is "Minds" as one soon learns. In the first half of the book, Panek describes how the telescope opened our eyes to the heavens and as the second half begins, he opens our eyes to how the progression began in earnest to the opening of our minds to the heavens. Certainly Galileo opened many minds to possibilities in the heavens that they had not considered: mountains on the Moon, moons orbiting Jupiter, phases of Venus, and so forth. What the eyes could see through the Galileo's perspicillum belied what our minds at the time could see, and the stretching of people's minds is treacherous endeavor, as he soon found out. But with stretching, people's minds do open, and the mind-opening exercises of Galileo prepared future centuries of star-gazers for quasars, pulsars, black holes, and a universe far greater than any of Galileo's contemporaries could have ever imagined.
[page 1] "On January 15, 1996, the universe grew by forty billion galaxies."
On the next page, Panek amends his statement to say, "What actually grew that morning, of course, wasn't the size of the universe, but our understanding of it." What happened that morning was a photo made of a single spot of the universe, as small as a grain of sand at arm's length, by the Hubble Space Telescope that was focused on that spot for ten entire days. They found almost 2,000 galaxies in that grain of sand speck of our night sky, which multiplied by the size of the rest of the sky approximates fifty billion galaxies. And this was only looking at visible light. What scientists found was more light than they ever expected and also more dark. Dark spaces for the first time appeared between galaxies, indicating that perhaps we had reached the end of universe with our instruments. Many questions arose.
[page 3] ". . . sometimes the best answer a scientist could want is more questions."
There weren't very many unanswered questions about the structure of the universe when Galileo made his first "tube of long seeing" by modifying a spyglass of a Dutch craftsman and turned it to familiar night sky. Planets and stars were pinpoints of light, everybody knew that; no questions were asked so nobody looked. But when Galileo looked at the night sky through his telescope he saw for the first time in the history of the Earth that planets had size and shapes and colors whereas stars remained pinpoints of light. He saw three pinpoints of light near Jupiter and as he observed on successive nights, sometimes he'd see two of them to the left of Jupiter and sometimes two to the right. How could Jupiter be moving so as to cause theses stars to dart about the planet so? Faced with this unanswerable question, he dared think the previously unthinkable: Perhaps the dots of light were moons orbiting Jupiter! What his eyes saw was incomprehensible until he opened his mind to new possibilities. Each generation since our minds have stretched farther and farther open as our instruments record previously incomprehensible data from the heavens.
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4.0 out of 5 stars
Superb little book!, Jun 14 1999
By A Customer
This is a very enjoyable book! As a professional astronomer, I can only recommend this book to all people interested on the impact that the telescope had in the history of mankind. Although there is no deep technical description of telescopes here, this is not the point. The telescope has changed and is still changing the way we see the Universe and Panek does a very good job at describing the major contributions of this wonderful invention.
My only complaint is that the last chapter might be a bit too rushed compared to the previous ones since it basically reviews all modern astronomy in about 20 pages. But, otherwise, strongly recommended!
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5.0 out of 5 stars
A Gem!, Nov 29 1998
Even if you know nothing about astronomy --even if you don't care about astronomy -- you will love this book. It is written so gracefully, so unpretentiously (no 'we are starstuff' bombast) and the story it tells is so intriguing, that even science-shy readers can enjoy -- and learn. (I know because I am one.) The book is very pretty ,too -- small and slender, and with a lovely cover. A perfect present.
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