840 Words4 Pages

Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is written by Dava Sobel. The book is called Longitude because it is about a clock maker who was able to determine longitude. Determining longitude was the superlative scientific question in the eighteenth century that Galileo and Newton were not able to resolve.
The principal inspiration behind the invention completed in this book is that many sailors were lost at seas as a result of their ignorance regarding longitude. So, without the competence to determine longitude, many innocent lives were disintegrated at seas.
England&#8217;s Parliament was desperate for an answer to*…show more content…*

1 or H-1 for short. H-1 was bar-shaped, built out of shinny brass, and was big in size. His second attempt was called H-2. H-2 was a heavy weight of 86 pounds, but fitted into a small box as John promised it would. H-2 was also bar-shaped and included an implement to ensure a unchanging drive and a more agreeable temperature reimbursement device. Although its motion was adequately regular and exact for finding the longitude of a ship within the nearest limits proposed by the Parliament, H-2 was not good enough for Harrison. So, Harrison devoted nineteen years to build H-3. The H-3 was the leanest of the sea clocks and was small enough to meet the definition of &#8220;shipshape.'; H-3 contained bearings in the caged ball that smoothened the operation with moving parts. Unlike H-1 and H-2, H-3 ran on two large circular balances wheels linked by metal ribbons. In addition, it was controlled by a single spiral spring. Furthermore, Harrison introduced a bi-metallic strip in the H-3. The bi-metallic strip compensates immediately and automatically for any changes in temperature that could effect the clock&#8217;s going rate. But after the H-3 was completed Harrison realized that a small watch might be the greatest device to figure out the longitude. As a result, John Harrison completed H-4 in1759. It was very minute for a sea clock, and weighed only three pounds. It had two silver cases and a &#8220;genteel white

Related

## The State Plane Coordinate System

1379 Words | 6 Pageslocal governments. Its popularity is due to at least two factors. First, it uses a simple Cartesian coordinate system to specify locations rather than a more complex spherical coordinate system like the geographic coordinate system of latitude and longitude. By using the Cartesian coordinate system 's simple XY coordinates, plane surveying methods can be used, speeding up and simplifying calculations. Second, the system is highly accurate within each zone (error less than 1:10,000). Outside a specific

## Geographic Coordinates Of A Geographic Coordinate System

2018 Words | 9 Pagescoordinates is latitude, longitude and elevation. To specify a location on a two-dimensional map requires a map projection. History The invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene, who composed his now-lost Geography at the Library of Alexandria in the 3rd century BC. A century later, Hipparchus of Nicaea improved upon his system by determining latitude from stellar measurements rather than solar altitude and determining longitude by using simultaneous

## Use Of Bearings And Its Impact On Society

2692 Words | 11 Pagespoint can be calculated. It is key to always begin facing north is the bearing calculated is to be found in the true north format. The use of the Geographic Coordinate System is also a common use in society, this system uses two sets of numbers (longitude and latitude) to locate and identify every single spot of the Earth to a certain extent of decimal places. This is the most commonly used system to plot the coordinates of a place on Earth, it is also the most accurate system known to humanity. The

## Geographic Center Of The United States

1066 Words | 5 PagesOur method for determining the center of mass of each state is split up into five steps. The first two, file conversion and sorting, gave a huge amount of raw data, and then condensed it into a workable form. The third step converted latitude and longitude coordinates into kilometers. The fourth step took the trapezoids formed by the previous steps and calculated their moments with respect to the x and y axis’s. Finally, the conversions were reversed to give the center of mass. All of the states were

## 2.10 study guide Essay

1011 Words | 5 Pagesmeasure longitude (Lesson 02.01) (use the first resource in this lesson to help you) Be able to list and describe the 2 main tools used to measure longitude in early navigation the chronometer- the sextant to figure longitude using the lunar-distance method Current Navigation Tools (Lesson 02.01) What tool do we currently use to determine location (latitude and longitude)? the Global Positioning System, Longitude and Latitude (Lesson 02.01) Know the ways that longitude and latitude

## Analyzing Sunrise And Sunset Data

1111 Words | 5 Pageschecklist rubric(s), graphic organizer, Cornell notes and resource pages for student (Project Packet) 2. Install online graphing calculator software, as required https://sites.google.com/site/ti83interactivecalculator/Home www.wabbit.emu 3. Obtain longitude and latitude data for student selected cities, as appropriate https://support.google.com/maps/answer/18539?co=GENIE.Platform%3DDesktop&hl=en To find the coordinates of a place on Google Maps, follow the steps below. a. Open Google Maps b. Drag map

## True Bearings And The Geometric Coordinate System

1550 Words | 7 PagesNorth and South Poles. The primary line of the longitudinal waves runs through North and South Pole to mark the position of East and West of a point. The line passes through equator crossing at right angles. The places that the primary line of longitude passes through are the imaginary lines used to determine certain areas of the world, the: Tropic of Capricorn, Tropic of Cancer, Prime Meridian, Equator, Antarctic Circle and Artic Circle. Whilst circles of Latitudinal waves are called Parallels

## My Field Experiences At The International Newcomer Academy Essay

2032 Words | 9 Pageslanguage barrier we relied on hand-drawn pictures and hand movements or gestures as a means of communication. One particularly difficult lesson was on exact location and the student’s knowledge of lines of latitude and longitude. I took the opportunity to demonstrate that lines of longitude ran ‘side to side’ moving my hand across the globe and ‘up and down’ on the globe for latitude. This involved all three of her learning modalities and helped her grasp the concept. Many of our visits included this

## Marine Chronometer and Longitude Essays

889 Words | 4 PagesLongitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is written by Dava Sobel. The book is called Longitude because it is about a clock maker who was able to determine longitude. Determining longitude was the superlative scientific question in the eighteenth century that Galileo and Newton were not able to resolve. The principal inspiration behind the invention completed in this book is that many sailors were lost at seas as a result of their ignorance

## The Discovery Of The Expedition Essay

1381 Words | 6 PagesGPS GPS is a fairly new technology being used to study the ocean. These little machines take signals from a satellite that orbits the earth twice a day. They use triangulation to determine the user’s exact location. To determine latitude and longitude and a 2D position, the GPS must be locked onto 3 different satellites. New GPS is the most accurate yet. Garmin’s 12 channel design locks onto several satellites and keeps hold until turned off. Factors of the environment may affect the signal of

### The State Plane Coordinate System

1379 Words | 6 Pages### Geographic Coordinates Of A Geographic Coordinate System

2018 Words | 9 Pages### Use Of Bearings And Its Impact On Society

2692 Words | 11 Pages### Geographic Center Of The United States

1066 Words | 5 Pages### 2.10 study guide Essay

1011 Words | 5 Pages### Analyzing Sunrise And Sunset Data

1111 Words | 5 Pages### True Bearings And The Geometric Coordinate System

1550 Words | 7 Pages### My Field Experiences At The International Newcomer Academy Essay

2032 Words | 9 Pages### Marine Chronometer and Longitude Essays

889 Words | 4 Pages### The Discovery Of The Expedition Essay

1381 Words | 6 Pages