Longitude: meaning, definitions and examples

Etymology

• The word 'longitude' comes from the Latin word 'longitudo', which means 'length' or 'long'.
• It was first used in English in the 15th century and often referred to the length of a ship's journey.

History of Navigation

• Longitude was crucial for navigation at sea, especially after the 18th century when maritime laws required accurate charts.
• The primary challenge for sailors was determining their east-west position, leading to the creation of precise marine clocks.
• John Harrison, a clockmaker, developed the first practical marine chronometer in the 1730s, allowing for accurate longitude measurement.

Science

• Longitude lines, known as meridians, are imaginary lines that run from the North to the South Pole.
• The Prime Meridian, set at 0 degrees longitude, passes through Greenwich, England, and is the starting point for measuring longitude worldwide.
• Each degree of longitude corresponds to 69 miles (111 kilometers) at the equator, but this distance decreases as you move towards the poles.

Cultural Significance

• Various cultures have developed their own systems of longitude for navigation, highlighting the importance of global exploration.
• Longitude has played a crucial role in historical events, such as the Age of Exploration in the 15th century, which shaped global trade.

Technology and Maps

• Today, longitude is used in GPS technology to provide precise locations on Earth, revolutionizing navigation.
• Digital maps and mobile applications rely on a combination of latitude and longitude for mapping out routes and locations.

Position #9,923 indicates this is an advanced-level word. While not essential for basic communication, it will enhance your ability to understand and create more nuanced content.

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