Where Does Gold Come From?
Posted by Fahad Majidi on
February 7, 2010
Gold (symbol Ag) is a chemical element which belongs to the group of transition metals. It can be found in a free state in nature as well as in compounds. Created by nature it can’t be produced in chemical or other way.
Gold occurs mostly in solid state as ore made by rocks but it can be found in form of powder or granules in riverbeds. Once people could actually see chunks of gold in riverbeds but nowadays they are extremely rare.
Gold can also be found in alloys with cooper and mercury, and as dissolved gold in sea. As for its compound, tellurium is the most common.
Geographically it can be found almost anywhere, but mostly in South Africa, United States, Russia, Canada and China.
tags: chemical element, cooper, Gold, granules, mercury, riverbeds
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How long does it take Mercury to circle the Sun?
Posted by Fahad Majidi on
January 7, 2010
Mercury is the planet that is the closest in distance to the Sun in the solar system. It is difficult to view this planet since the sunlight bouncing off it makes it quite glaring. Although there were two spaceships sent out to gain more information from Mercury, not much could be found out. But soon, we will be to obtain data on the planet once a spaceship has been placed in its orbit. Mercury is in its appearance, very close to that of the Moon. It has a large number of craters on its surface. This planet was viewed in as early as the 1st B.C. and it was first named by the Greeks. However its current name came from the Romans. Although its proximity to the Sun means that the temperature will be very high, there is also suggestion that there is the presence of ice.
The planet Mercury circles around the Sun in approximately 88 days. An interesting piece of information about Mercury’s orbit is that a year on Mercury is smaller than a day on it. A day on this planet is roughly twice the time taken to orbit the Sun. That means that it will be a day on this planet for two years!
