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The Man Who Made Time Travel

von Kathryn Lasky

Weitere Autoren: Kevin Hawkes (Illustrator)

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18810144,619 (3.79)1
Describes the need for sailors to be able to determine their position at sea and the efforts of John Harrison, an eighteenth century man who spent his life refining instruments to enable them to do this.
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In the 1700s, there was no way to know the time or the longitude when sailors were out on the sea. A group of men came together and created the Board of Longitude, which would award somone the prize of 20,000 pounds if they created a way to keep time and longitude on a sailing ship. Many men tried, and failed, but John Harrison had a love for clocks and bells, so he gave it a shot. After making five clocks, that worked almost perfectly, he was never awarded the prize. Harrison petitioned the king, and when he saw that the clock had all of the requirements and worked, he gave the prize to Harrison. Harrison dedicated his entire adult life to making the perfect clock for sailors to use on their ship. This book could be used to teach about nonfiction, biographies, or a chain of events, because it tells the story in chronological order, and goes through Harrisons' entire life. ( )
  smm101 | Feb 14, 2018 |
A good introduction to the subject and excellent illustrations, but the text is somewhat sloppy. It gives the impression that the writer understood the drama but not the technology. ( )
  themulhern | Jan 25, 2014 |
A great history about navigation.
  ymelodie | Oct 28, 2012 |
Summary:
Back in the day, many ships were lost at sea because they didnt know where they were. Longitude was immeasurable and this made it hard to get across the ocean. Many sailors died and this had to end. In 1714 the Longitude Prize (20,000 pounds) was offered to anyone who could create a reliable way to measure Longitude. Many scientists attempted it but it came down to a clockmaker who came up with this concept that changed history. He made five designs and the last one was the best. He was never officially awarded the prize or named the winner, he did however, get the money.

Personal Reaction:
I liked this book because it was very interesting and my husband is in the Navy and spends a lot of time on ships. It was nice to see a piece of history, I only wish the man got credit for what he invented.

Classroom Extension Ideas:
1. Design your own clock and explain how it would work.
2. Learn about coordinates and traveling on the sea ( )
  SarahClick | Mar 8, 2012 |
This is a book about the history of the clock and how it became so portable. The problem started out when sailors were not able to determine their position at sea. Was there an easy way to do so? There were many proposed solutions; many of which were absurd but a man named John Harrison decided that he could build a clock that would keep time even at sea. He was an uneducated young man and was not taken seriously at first but as he improved his model his clocks became more and more accurate. He was competing for a very large sum of money but it took him decades to receive his prize. Eventually he did and he is responsible for many explorers finding their way.
I found this book a little dry. It was long but contained good information. The illustrations were not compelling and I barely noticed them although the ones at the end that showed the cocks in more detail were interesting. I feel like it could have been a very interesting subject had the author reduced the length but I am glad to have read it and learned the history behind the clocks that we now have. I had no idea! ( )
  CarolyneBegin | May 11, 2011 |
Carolyn Mott Ford (Children's Literature)
This is a story of persistence. John Harrison was a man who never gave up his dream despite problems, setbacks and the failure of others to take him seriously. In 1714 the British Parliament passed the Longitude Act, offering a prize of 20,000 pounds sterling for a workable way to measure longitude. Many British ships were sinking because, although sailors could measure latitude, the north-south position, they had no means to measure longitude, the east-west position and could not know their ship's true location. The entries ranged from the scientific to the ridiculous, but a young carpenter combined his working experience with his independent study of mathematics and the laws of motion to solve the problem. John Harrison fashioned a sea clock, known as H1. Harrison was accorded little respect because of his lack of education, but he continued to improve the sea clock. His fifth model, H5, met the requirements, but the prize money was not given to the now seventy-nine-year old John Harrison until his son William presented the case to King George III. The Longitude Prize was never officially awarded but any reader of this story will be aware that John Harrison was a winner. He never gave up, he accomplished what he set out to do and he made voyages safer for all seafarers. 2003, Melanie Kroupa Books/Farrar Straus and Giroux, $17.00. Ages 8 to 12.

hinzugefügt von kthomp25 | bearbeitenChildren's Literature, Carolyn Mott Ford
 
Carolyn Phelan (Booklist, Mar. 1, 2003 (Vol. 99, No. 13))
Executed in an oversize format, which allows plenty of space for Hawkes' dramatic pictures, this tells the story of John Harrison, an eighteenth-century clock maker who solved the problem of tracking longitude in shipboard navigation. The book begins with a shipwreck, dramatizing the fact that the longitude puzzle was not just a matter of academic or economic importance but a life-and-death question for those who sailed the seas. After introducing some of the more absurd solutions proposed for tracking longitude, the discussion turns to young John Harrison, who was 21 when the Longitude Prize was offered by the British Parliament. Lasky shows how, over the next half-century, Harrison worked to design and perfect a timepiece that would earn the prize. Not every child will understand the technical challenge discussed; however, the text makes absorbing reading both for its sidelights on history and for the personal drama portrayed. Harrison emerges as an admirable, if idiosyncratic, individual whose story is well worth telling. Atmospherically lit and richly colored, Hawkes' large-scale paintings are often striking in their overall effects and intriguing in their details. Unexpected elements of humor in both the historical narrative and the illustrations lighten what could have been a dry, weighty treatment in other hands. Teachers looking for books for units on inventors will find this a memorable choice for reading aloud. Category: Books for Middle Readers--Nonfiction. 2003, Farrar/Melanie Kroupa, $17. Gr. 3-5
hinzugefügt von kthomp25 | bearbeitenBooklist, Carolyn Phelan
 

» Andere Autoren hinzufügen

AutorennameRolleArt des AutorsWerk?Status
Kathryn LaskyHauptautoralle Ausgabenberechnet
Hawkes, KevinIllustratorCo-Autoralle Ausgabenbestätigt
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Describes the need for sailors to be able to determine their position at sea and the efforts of John Harrison, an eighteenth century man who spent his life refining instruments to enable them to do this.

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