Archive for July, 2008
Sunday, July 27th, 2008
Low Jeremy asked: Thanks to physicists, the theory of electromagnetism has been discovered and its principles are now being put to good use in the form of metal detectors.At the basic level, metal detectors are pretty simple. What it has is a coil that produces alternating current that in turn ...
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Thursday, July 17th, 2008
Low Jeremy asked: Metal detectors are interesting pieces of technology. They have a variety of uses and have become even more versatile throughout the years. Ever since the first metal detectors came out in the 19th century, scientists and engineers never stopped working on better and more efficient designs.Nowadays, there ...
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Tuesday, July 15th, 2008
Ron Peterson asked: The precious metal of gold has fascinated humans for thousands of years. But how do we actually get it out of the ground? Let's take a look at the most common ways to mine gold.There are two main gold mining methods, one is called "placer" and the ...
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Saturday, July 5th, 2008
David Fishman asked: The main part of metal detectors is the control box, shaft, and search coil. Control box which has speaker, batteries, and microprocessor coordinates all activities. To protect the food source many companies use metal detectors to check for metal contaminates in the food, and some drug companies ...
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Thursday, July 3rd, 2008
PeruGoldTours asked: Learn how to pan gold in the remote Amazon Jungle. This footage was captured live from a real village that subsists off of harvesting gold from the Amazon tributaries.
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