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Lock (fastening device)

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INTRODUCTION Key and Lock Mechanism This diagram shows the way a key opens its corresponding lock. When the key is inserted into the lock, its grooves raise spring-loaded pins of corresponding sizes. This permits the key to turn the cylindrical plug and open the lock. Only a key with grooves that exactly correspond to the size of the pins will permit the plug to rotate in the lock barrel. Lock (fastening device) , mechanical device used for fastening doors, chests, and lids, consisting essentially of a bolt guarded by a mechanism released by a key or a combination. Mechanical Bolt Lock   Mechanical Bolt Lock A bolt lock functions when a key is inserted into the notch, or talon. The key moves the bolt backward or forward, depending on whether the user is opening or closing the lock. Encarta Encyclopedia Michael Boys/Corbis ...
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Remember the Alamo

“Remember the Alamo!” is a famous battle cry from the old West. Who wanted to remember the Alamo and why? The Alamo is an old mission (church compound) in San Antonio, Texas. Spanish priests built it from sun-dried bricks, called adobe, in the early 1700s. High walls defended the mission. It later became a fortress. In 1836, a bloody battle was fought at the Alamo. Texan forces fought bravely against the Mexican army, but many Texans died. At that time, Texas was part of Mexico. Many Texans wanted to make Texas an independent country. “Remember the Alamo!” became a battle cry for Texas in its war of independence from Mexico. TEXAS REVOLTS! In the fall of 1835, the people of Texas decided they no longer wanted to be a part of Mexico. Texans were unhappy with the Mexican government. The Texans rebelled and gathered an army. Mexican president and general Antonio López de Santa Anna wanted to stop the revolt. In February 1836, he took more than 2,000 of his soldiers to San Antonio. A...
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Norway oil investment to rise in 2019 before sliding: lobby

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By Nerijus Adomaitis Reuters January  A view of Equinor's oil platform in Johan Sverdrup oilfield in the North Sea A view of Equinor's oil platform in Johan Sverdrup oilfield in the North Sea, Norway August 22, 2018. REUTERS/Nerijus Adomaitis By Nerijus Adomaitis OSLO (Reuters) - Oil and gas investment in Norway is expected to grow for a second year in a row in 2019 but will fall back between 2020 and 2023, an industry lobby group said on Monday. Western Europe's largest oil producer has seen a recovery in oil industry activity thanks to higher crude prices, after a slump in 2014-2016.
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