The Iron Curtain symbolized the ideological conflict and physical boundary dividing Europe into two separate areas during Cold War. Iron Curtain divided countries in the capitalist West and the socialist countries of East.
X-rays are a form of invisible, high-frequency electromagnetic radiation. X-rays are very small and energetic. They are used in different branches of science.
We have all heard about Australia, kangaroos, koalas and the magnificent landscapes, but there's much more to this vast and still quite unpopulated continent down under.
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