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Bonnie Hinman's Benjamin Banneker: American Mathematician and Astronomer PDF

By Bonnie Hinman

ISBN-10: 0791053482

ISBN-13: 9780791053485

ISBN-10: 1438101082

ISBN-13: 9781438101088

Born loose while so much blacks have been slaves, Banneker was once a winning land surveyor, astronomer, and writer of almanacs.

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Additional info for Benjamin Banneker: American Mathematician and Astronomer (Colonial Leaders)

Sample text

The money he earned from the sale of his almanacs let him quit growing tobacco. Now he could just raise a small garden and take care of his beehives. He no longer had to work all day. He spent his nights doing what he loved best—looking at 61 62 BENJAMIN BANNEKER the stars. During the daytime he could spend much of his time working at his table. There, he calculated a new ephemeris for 1793. Of course there was no problem finding a printer for the 1793 edition. Every printer wanted to publish the famous black astronomer’s next almanac.

Sometimes almanacs contained letters. They also predicted the weather and told when to plant crops in the spring. The First Almanac At this time it was common for the same book to be printed in several different cities. Most printers sold the books they published just in their own city. A writer might try to find more than one printer for his book. That way more people would read it. That’s why Ben sent his ephemeris to several printers. Finally Mr. Goddard said he wanted to print an almanac using Ben’s ephemeris.

Much planning was needed to build the new city. 4 The Big Adventure P resident George Washington himself picked the site for a national capital for the new United States. Maryland and Virginia both gave land for the federal territory. The capital would sit beside the Potomac River. Up until this time the government moved from one city to another for many years. Now it was time to stay put. The site was chosen. Next came a land survey. Many measurements are needed before a city can be planned. A surveyor makes those measurements.

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Benjamin Banneker: American Mathematician and Astronomer (Colonial Leaders) by Bonnie Hinman


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