Like Michelangelo, Galileo is another Renaissance great known just by his first name--a name that is synonymous with scientific achievement. Born in Pisa, Italy, in the sixteenth century, Galileo contributed to the era's great rebirth of knowledge. He invented a telescope to observe the heavens. From there, not even the sky was the limit! He turned long-held notions about the universe topsy tur…
More than two thousand years ago, with his land under constant attack from nomads, the First Emperor of China came up with a simple solution: build a wall to keep out enemies. It was a wall that kept growing and growing. But its construction came at a huge cost: it is believed that more than a million Chinese died building it, earning the wall its nickname--the longest cemetery on earth. Throug…
Human beings have inhabited the banks of the Amazon River since 13,000 BC and yet they make up just a small percentage of the "population" of this geographic wonderland. The Amazon River basin teems with life—animal and plant alike. It's a rainforest that is home to an estimated 390 billion individual trees, 2.5 million species of insects, and hundreds of amazing creatures and plants that can…