In 1986, the Chernobyl nuclear power plant exploded. What caused the explosion and why has Chernobyl become a lasting reminder of the dangers of nuclear power? Earth Science - Earth's Resources - Learning Points. The world's first...

He could barely eat because of his disfigured jaw. He suffered from rickets, hallucinations, and an oversized head. He was impotent and infertile. Charles II of Spain, king of one of the largest empires in the world, was barely able to...