Archive for June, 2010

The phony bugger compensates the activating follower.

Radium is known for its glowing property. Children play with them in the nights.  But how and when was this radium discovered? Uranium which is an element of importance in nuclear physics shows properties of radium and this discovery was made by Henri Becquerel in the year 1896. He found that uranium had the property of emitting radiations that were not visible to the human eyes. But these rays are more powerful than the X rays. Two years later, in 1898, the Curie couple found that thorium also emits these types of radiations. They also believed that the uranium ore, pitchblende, must be having some other radioactive substance also. But to find it the ore must be refined to a much higher degree. This was not an easy task. The coupled worked tirelessly for days and nights. They were determined even when they were not well off and were not in a situation to afford for a good laboratory. They worked in a tin shed not even minding about the rains. Finally their hard work paid. They succeeded in extracting 100 milligrams of radium from several tons of pitchblende. Marie Curie and Pierre Curie were awarded the Noble prize for their achievement in the year 1903. To honor them, the unit of radioactivity is named as Curie. Radium is one of the radioactive elements which constantly emit invisible powerful radiations. The radiations are called as radioactive rays. These rays can be made use in the medical field. They are used to control diseases like cancer because of their destructive power.