For many years I was organizing a weekly seminar on dynamical astronomy, and I used to make some historical remarks on every subject, including some anecdotes from my contacts with many leading scientists over the years. I described also the development of various subjects and the emergence of new ideasindynamicalastronomy. Thenseveralpeoplepromptedmetowritedown these remarks, which cannot be found in papers, or books. Thus, I decided to write this book, which contains my experiences over the years. I hope that this book may be helpful to astronomy students all over the world. During my many years of teaching, as a visiting professor, in American Universities (1962-1994, Yale, Harvard, MIT, Cornell, Chicago, Maryland and Florida) I was impressed by the quality of my graduate students. Most of them were very bright, asking penetrating questions, and preparing their homework in a perfect way. In a few cases, instead of a ?nal examination, I assigned to them some small research projects and they presented their results at the end of the course. They were excellent in preparing the appropriate slides and in presenting their results in a concise and clear way.
The discovery of gold in California, in 1848, with its other mineral resources, including the Alamada quicksilver mine at San Jose which is an article of first necessity in working gold or silver ore; and the great silver mines of Nevada, in 1860, the Comstock lode, in which, in ten years, from five to eight hundred millions of gold and silver were taken out, a larger amount than was ever taken from one locality before, the Alamada quicksilver mine being the second most productive of any in the world, the one in Spain being the largest, said to be owned by the Rothschilds.
Life sucks, especially when the girl of your dreams invites you over for Thanksgiving and you ruin everything. Don't you just wish you could turn back time? Wouldn't it be nice if you could hop in a Time Machine and fix all of your past mistakes? Frank had these same thoughts. Will Frank fix all of his problems with one invention, or will things blowup in his face like all the other times? If you love reading crazy adventures with a wacky sense of humor, this book is for you. This is the 4th installment in the Adventures of a Mad Sixth Grader series. For more great books, visit us at www.suckytuna.com
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