.... of cancer and even Alzheimer's disease. Aspirin: from willow tree to Nobel Prize Aspirin's active ingredient, acetylsalicylic acid (ASA), is the commercially synthesized form of a naturally occurring compound whose uses can be traced back 2,000 years. The compound, called salicin, is found in the white willow tree. Around 200 B.C., Hippocrates, the Greek physician, discovered that chewing on willow bark could relieve pain and fever. Although ASA was a proven pain reliever, no one really knew how it worked until more than 70 years after Hoffmann's discovery. In 1971, Br .....

.... warming. Science Is global warming occurring? - According to Accu-Weather, the world's leading commercial forecaster, "Global air temperatures as measured by land-based weather stations show an increase of about 0.45 degrees Celsius over the past century. This may be no more than normal climatic variation...and several biases in the data may be responsible for some of this increase." - Satellite data indicate a slight cooling in the climate in the last 18 years. These satellites use advanced technology and are not subject to the "heat island" effect around major cities .....

.... approved bioengineered tomatoes that ripen without rotting(Dewitt, 1994). Entire herds of cattle are now being injected with a growth hormone(BST) so that they will produce more milk than ordinary cattle(Dewitt, 1994). Also drought resistance grass that needs no moving. Scientists will soon be able to collect DNA from endangered species. This DNA could be used to clone more condors, bald eagle, mountain gorillas, and many other animals. Totally extinct animals may be recreated as well, i.e. Jurassic Park. Imagine having your own dodo bird or pet triceratops. Many types .....

.... of the four years studying the scientific thoughts and philosophies of Aristotle. He also invented an instrument that could find the gravity of objects. This instrument, called a hydrostatic balance, was used by weighing the objects in water. Galileo returned to Pisa in 1589 and became a professor in math. He taught courses in astronomy at the University of Pisa, based on Ptolemy's theory that the sun and all of the planets move around the earth. Teaching these courses, he became more understanding of astronomy. In 1592, the University of Padua gave him a professorship .....

.... their height and good sense of smell and eyesight. They can be fast and can reach speeds of up to 35 mph. Females spend over 12 hours a day looking, while males are less. Night mostly spent lying down ruminating, especially hours after dark and before dawn. A Giraffe has 2 ways of getting around which is walking and galloping. The long legs and short trunk decree an ambling walk, with the entire weight supported alternatively on the left and right legs, like camels. The long neck moves in a synchrony to maintain balance. It can gallop up to 37 mph. The forelegs .....

.... on record was almost the same size. It was found in Potter, Nebraska on July 6, 1928. The hailstone had a circumference of 17 inches and weighed 1.51 pounds (Dennis 54). Hail can be extremely dangerous. It can break windows, damage roofs, dent cars, injure and even kill people! Crops are greatly affected. Hail causes around two hundred million dollars in damage a year. That's a lot of money. When the wind is blowing hailstones are at their worst. The most common places to see hail is in Texas, through the Great Plains and up into Alberta, Canada. Areas .....

.... altogether. How might systems fail? Let's look at an example program in which the omitted century is assumed to be '19' and the program's function is to figure out how old you are. If you were born in 1958, then in 1999 this program will calculate your age as 99 minus 58, or 41. That's fine, but what happens when the century rolls over to '20' in the year 2000? In this program, the year will appear as '00' but the century will still be assumed to be '19' -- so the program will calculate your age as 00 minus 58, or -58. Then, depending on the program's error-handling capac .....

.... and resource consumption. An examination of population size, atmospheric concentrations of these gases and global temperature relative to time and with respect to each other is presented here to demonstrate the relations among these factors. POPULATION GROWTH Many of us have seen linear graphs of human population showing the enormous growth in the last two centuries. However, significant changes in population dynamics are lost in the exponential growth and long time scales. If the data are replotted on a log-population by log-time scale, significant population dynamics e .....