The publication of Darwin s The Origin of Species in 1859 marked a dramatic turning point in scientific thought. The volume had taken Darwin more than twenty years to publish, in part because he envisioned the storm of controversy it was certain to unleash. Indeed, selling out its first edition on its first day, The Origin of Species revolutionized science, philosophy, and theology. Darwin s reasoned, documented arguments carefully advance his theory of natural selection and his assertion that species were not created all at once by a divine hand but started with a few simple forms that mutated and adapted over time. Whether commenting on his own poor health, discussing his experiments to test instinct in bees, or relating a conversation about a South American burrowing rodent, Darwin s monumental achievement is surprisingly personal and delightfully readable. Its profound ideas remain controversial even today, making it the most influential book in the natural sciences ever written an important work no
Water is everywhere. It covers almost 70 percent of Earth's surface. It forms the oceans and flows as rushing rivers. The atmosphere not to mention clouds is a vast storehouse of water in the form of the gas called water vapor. Billions of tons of water are locked up as the enormous ice caps that sit on the top and bottom of the world. If all of that icy water were to melt, it would cause a rise in sea level of about 260 feet (80 meters). Coastal cities the world over would be flooded beyond repair.
