# Blog

## Who solved the problem of longitude?

Sobel reveals in her opening chapter that the problem of longitude was eventually solved by one John Harrison, an unschooled woodworker who had the genius to invent a pendulum-free clock that required no oil and ''would carry the true time from the home port, like an eternal flame, to any remote corner of the world.

## How did John Harrison's clock work?

Instead of a pendulum, he used two dumbbell balances, linked together. It took Harrison five years to build his first sea clock (or H1). He demonstrated it to members of the Royal Society who spoke on his behalf to the Board of Longitude.

## Why was longitude so important?

The measurement of longitude is important to both cartography and navigation, in particular to provide safe ocean navigation. Knowledge of both latitude and longitude was required. ... Today, the problem of longitude has been solved to centimeter accuracy through satellite navigation.

## Who first discovered longitude?

Great minds had tried for centuries to develop a method of determining longitude. Hipparchus, a Greek astronomer (190–120 BC), was the first to specify location using latitude and longitude as co-ordinates. He proposed a zero meridian passing through Rhodes.Aug 25, 2006

## What is Latitude Wikipedia?

Latitude is an angle (defined below) which ranges from 0° at the Equator to 90° (North or South) at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth.

## What did the clock solve?

It is the mechanical clock, and according to many historians, it was the clock that changed everything and deserves to be called as the key factor of the industrial age. Mechanical clocks enabled people to measure time in ways that were not possible before, and because of it, our lives were changed forever.Jun 16, 2020

## What was the historical longitude problem?

The longitude problem haunted sailors for centuries. Without being able to establish longitude, captains of ships were going off something they called “dead reckoning”, which essentially meant they were guessing, steering the ship with their gut, and ships were forced to stick to the few safe routes everyone knew.

## What did John Harrison do?

John Harrison, (born March 1693, Foulby, Yorkshire, Eng. —died March 24, 1776, London), English horologist who invented the first practical marine chronometer, which enabled navigators to compute accurately their longitude at sea. ... Harrison completed his first chronometer in 1735 and submitted it for the prize.

## What are the uses of latitude?

Latitudes help in identifying and locating major heat zones of the earth. Latitude measures the distance between the north to south from the equator. Latitude helps in understanding the pattern of wind circulation on the global surface. Longitude measures the distance between the west to earth from the prime meridian.

### How did sailors determine longitude?

Sailors used a sextant to determine their latitudinal position. Longitude lines run vertically across the globe and are used to measure distances east and west of Greenwich, England.

### How latitude is determined?

1 The latitude of a point on the Earth's surface is determined by the angle (ø) between the point and the equator, passing through Earth's center (Peter Mercator [Public domain], via Wikimedia Commons). One degree of latitude is divided into 60 minutes (').

### When was the Longitude Act passed?

• Following the Merchants and Seamen Petition, which called for finding an adequate solution and was presented to Westminster Palace in May 1714, the Longitude Act was passed in July 1714. For details on many of the efforts towards determining the longitude, see History of longitude .

### What was the purpose of the longitude rewards?

• The longitude rewards were the system of inducement prizes offered by the British government for a simple and practical method for the precise determination of a ship's longitude at sea. The rewards, established through an Act of Parliament (the Longitude Act) in 1714, were administered by the Board of Longitude.

### What is the Board of longitude and how does it work?

• The parliamentary committee also established the Board of Longitude. This panel of adjudicators would review proposed solutions and were also given authority to grant up to £2,000 in advances for promising projects that did not entirely fulfill the terms of the prize levels, but that were still found worthy of encouragement.

### Did the Board of longitude Award £20K at one time?

• Though the Board of Longitude did not award £20,000 at one time, they did offer sums to various individuals in recognition of their work for improvements in instrumentation or in published atlases and star charts.

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