Whats The Age of The Earth
A rough idea of the birth of the earth. But how many years ago was the earth born? What did that primitive world look like?
No living creature was present to witness that marvelous birth of the distant past. He is not mentioned in any book. There are only some rocks and the rare element radium. These are the tools of scientists in finding the history of the past. Scientists have made great strides in determining the age of the Earth, especially with the help of radium from within the Earth.
Radium can be called a wonder metal. The total amount of this metal in the world is only ten ounces. Its greatest feature is that the metal is converted to ordinary lead at one time or many years later by radiating radioactive rays. Scientists know how much radium is converted to ordinary lead in how many years. In the same way, the amount of lead in radium is estimated to be more than 400 billion years old.
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