Linda Formichelli - Timekeeping: Explore the History and Science of Telling Time with 15 Projects
Here you can read online Linda Formichelli - Timekeeping: Explore the History and Science of Telling Time with 15 Projects full text of the book (entire story) in english for free. Download pdf and epub, get meaning, cover and reviews about this ebook. year: 2012, publisher: Nomad Press, genre: Science fiction. Description of the work, (preface) as well as reviews are available. Best literature library LitArk.com created for fans of good reading and offers a wide selection of genres:
Romance novel
Science fiction
Adventure
Detective
Science
History
Home and family
Prose
Art
Politics
Computer
Non-fiction
Religion
Business
Children
Humor
Choose a favorite category and find really read worthwhile books. Enjoy immersion in the world of imagination, feel the emotions of the characters or learn something new for yourself, make an fascinating discovery.
- Book:Timekeeping: Explore the History and Science of Telling Time with 15 Projects
- Author:
- Publisher:Nomad Press
- Genre:
- Year:2012
- Rating:4 / 5
- Favourites:Add to favourites
- Your mark:
Timekeeping: Explore the History and Science of Telling Time with 15 Projects: summary, description and annotation
We offer to read an annotation, description, summary or preface (depends on what the author of the book "Timekeeping: Explore the History and Science of Telling Time with 15 Projects" wrote himself). If you haven't found the necessary information about the book — write in the comments, we will try to find it.
Timekeeping: Explore the History and Science of Telling Time travels through the past and into the future to explore how humans have measured the passage of time. From ancient civilizations earliest calendars and shadow clocks to GPS and the atomic clocks of today, kids will track the evolution of timekeeping devices, meet the inventors of calendars and clocks, and learn interesting facts and trivia. Hands-on projects and activities include making a shadow clock, using a protractor to create a sundial, measuring time using water, and creating your own calendar. Kids will understand how civilizations vague abilities to track days and months has transformed over the centuries into a sophisticated ability to keep time to the millionth of a second.
Linda Formichelli: author's other books
Who wrote Timekeeping: Explore the History and Science of Telling Time with 15 Projects? Find out the surname, the name of the author of the book and a list of all author's works by series.
Timekeeping: Explore the History and Science of Telling Time with 15 Projects — read online for free the complete book (whole text) full work
Below is the text of the book, divided by pages. System saving the place of the last page read, allows you to conveniently read the book "Timekeeping: Explore the History and Science of Telling Time with 15 Projects" online for free, without having to search again every time where you left off. Put a bookmark, and you can go to the page where you finished reading at any time.
Font size:
Interval:
Bookmark:
Nomad Press is committed to preserving ancient forests and natural resources. We elected to print Timekeeping: Explore the History and Science INITIATIVE of Telling Time on 4,007 lbs. of Williamsburg Recycled 30% offset.
Nomad Press made this paper choice because our printer, Sheridan Books, is a member of Green Press Initiative, a nonprofit program dedicated to supporting authors, publishers, and suppliers in their efforts to reduce their use of fiber obtained from endangered forests.
For more information, visit www.greenpressinitiative.org.
Nomad Press
A division of Nomad Communications
10 9 8 7 6 5 4 3 2 1
Copyright 2012 by Nomad Press. All rights reserved.
No part of this book may be reproduced in any form without permission in writing from the publisher, except by a reviewer who may quote brief passages in a review or for limited educational use.
The trademark Nomad Press and the Nomad Press logo are trademarks of Nomad Communications, Inc.
This book was manufactured by Sheridan Books,
Ann Arbor, MI USA.
November 2012, Job #341843
ISBN: 978-1-61930-033-0
Illustrations by Sam Carbaugh
Educational Consultant Marla Conn
Questions regarding the ordering of this book should be addressed to Independent Publishers Group
814 N. Franklin St., Chicago, IL 60610
www.ipgbook.com
Nomad Press
2456 Christian St.
White River Junction, VT 05001
www.nomadpress.net
Chapter 1
T HE B IRTH OF T IME
Chapter 2
H ERE C OME THE H OURS
Chapter 3
T ELLING T IME A FTER T WILIGHT
Chapter 4
W HAT I S A C LOCK , A NYWAY?
Chapter 5
E SCAPING THE T IME T RAPS OF O LD
Chapter 6
B ACK AND F ORTH AND B ACK AND F ORTH
Chapter 7
S LICING THE W ORLD INTO T IME Z ONES
Chapter 8
C RYSTAL C LEAR T IMEKEEPING
Chapter 9
M EASURING T IME W ITHOUT M OVING
Chapter 10
T IME ON Y OUR H ANDS
| 4000 BCE: | The first Egyptian calendars appear depicting the flood, seed, and harvest seasons, each four lunar months long. |
| 3000 BCE: | Egyptians change to a 365-day calendar with 12 months of 30 days each, plus five extra days at the end. |
| 1400 BCE: | Egyptians start using the clepsydra water clock to keep time. |
| 750 BCE: | Romulus, the founder of Rome, creates a 304-day calendar. It is later changed to a 355-day calendar, and then a calendar that alternates between 355, 378, 355, and 379 days every four years! |
| 560 BCE: | Anaximander introduces the sundial into Greece. |
| 200-50 BCE: | The giant Tower of the Winds water clock is built in Athens, Greece. |
| 45 BCE: | Julius Caesar changes the Roman calendar to what is known as the Julian calendar, putting January and February at the beginning of the year. The number of days of each month is 30 or 31, except February, which has 29, and 30 every fourth year. |
| 8 BCE: | The Roman senate steals a day from February to make August and July the same length. This keeps Roman Emperor Augustus Caesar happy. |
| 700-1000: | The Chinese begin using clepsydras powered by waterwheels. |
| 1090: | Su Sungs water clock is completed in China. It measures over 30 feet tall (9 meters). The clock is stolen in 1126. |
| mid-1200s: | The idea for a mechanical escapement first appears in the sketchbooks of French architect Villard de Honnecourt. |
| mid-1300s: | Clockmakers discover how to use separate gears to count off hours. |
| 1392: | A mechanical clock designed by Italian Giovanni de Dondi is built in Wells Cathedral. It includes figures of knights that joust every hour. |
| 1500: | Clocks are made small enough that wealthy Europeans begin buying them for their homes. |
| 1500-1510: | German locksmith Peter Henlein replaces heavy weights with springs to drive the gears of a clock. |
| 1525: | Jacob Zech of Prague invents a spiral pulley to smooth out the movement of a clocks mainspring. |
| 1582: | Pope Gregory XIII of Rome introduces the Gregorian calendar to deal with the extra time that has accumulated in the Julian calendar. He takes the extra leap day out of century years not divisible by 400. This is the calendar we use today. |
| 1637: | Galileo designs a pendulum clock that he never has a chance to build. |
| 1656: | Dutch scientist Christian Huygens builds the first pendulum clock, unaware of Galileos design. |
| 1675: | King Charles II founds the Royal Observatory in Greenwich, England, to track the sun, moon, and planets in order to create accurate star catalogs for British ships to sail safely around the world. |
| 1772: | John Harrison of England is recognized for inventing a chronometer accurate enough for sailors to tell where they are on the ocean within a half-degree of longitude. |
| 1808: | William Congreve invents a rolling ball clock using interlocking gears. |
| 1847: | The British government passes a law requiring all railroads to use Greenwich Mean Time. |
| 1880: | Pierre and Jacques Curie discover that quartz crystals vibrate at a constant rate when an electric current is run through them. |
| 1883: | The United States implements a system of time zones proposed by Charles Dowd. The following year, 25 countries meet to create a system of global time zones, with each zone measured from the prime meridian. |
| 1916: | The first official daylight saving time is observed in Germany and Austria. The United States passes its first daylight saving law in 1918. |
| late 1930s: | More accurate quartz crystal clocks are made, but they remain large and expensive. |
| 1949: | The first atomic clock is built. It is 10 times more accurate than a quartz clock. |
| 1964: | The first computerized timing device is used in the Olympics in Tokyo, Japan. |
| 1970s: | Digital quartz wristwatches become popular, thanks to quartz designs that run on less power. |
Font size:
Interval:
Bookmark:
Similar books «Timekeeping: Explore the History and Science of Telling Time with 15 Projects»
Look at similar books to Timekeeping: Explore the History and Science of Telling Time with 15 Projects. We have selected literature similar in name and meaning in the hope of providing readers with more options to find new, interesting, not yet read works.
Discussion, reviews of the book Timekeeping: Explore the History and Science of Telling Time with 15 Projects and just readers' own opinions. Leave your comments, write what you think about the work, its meaning or the main characters. Specify what exactly you liked and what you didn't like, and why you think so.