.... recognized as having vast power, both through their potential and how it has been viewed by humans, as well as through their effect on humans in sometimes subtle ways. The inherent properties of wood have always made it attractive as a versatile resource but there are other, more subtle ways in which it affects people. The tropical rainforests, responsible for producing most of the earth's breathable air, have been given the lofty title of "lungs of the Earth," and as stated by the Canadian Encyclopedia Plus '93, "forests provide an additional, although intangible, benefit: th .....

.... Steady State model says that the universe does not evolve or change in time. There was no beginning in the past, nor will there be change in the future. This model assumes the perfect cosmological principle. This principle says that the universe is the same everywhere on the large scale, at all times.2 It maintains the same average density of matter forever. There are observational evidences found that can prove the Big Bang model is more reasonable than the Steady State model. First, the redshifts of distant galaxies. Redshift is a Doppler effect which state .....

.... which says the total momentum of an isolated system is the table and the balls, and the law then implies that the total momentum of the balls just before they collide is the total momentum just after the collision. Therefore if the masses of two colliding objects are known, the velocity and the velocity of the other before the collision, you can calculate the final velocity of this second object after it has collided. To obtain an exact answer however, we must find out what type of collision takes place, whether it is elastic or not elastic. The type of collis .....

.... a manic episode, the person has lack of energy, and either an appetite loss or gain. is a recurrent illness, so a person usually has more than one episode. These episodes can last from weeks to months. They occur whenever and have no certain pattern. Sometimes a stressful life event can trigger an episode, and sometimes they just happen. If a person has more than four episodes a year they are known as “rapid cyclers”. This is more common in women. There is no exact reason for what causes , but some doctors say that it may be from imbalances of certain kinds of .....

.... the nearly extinct California condor-belong to a group of raptors called New World vultures. Chromosome analysis shows that the New World vultures are actually more closely related to storks than to the vultures of Europe, Asia, and Africa. Turkey vultures are remarkably successful birds. They range everywhere from parts of Canada and much of the United States to South America. At home in deserts, prairies and woodlands, they have even settled close to people in a number of urban and suburban areas. Observed in flight, the turkey vulture appears black with the underside .....

.... a mechanical device resembling a turnbuckle was used to help stretch the tendons. By this time was pretty well known around the world, using the typical stretching and splinting methods. In the 1800’s plaster of paris was first introduced, and later that same century, the introduction of aseptic technique and anasthesia diminished, but not eliminated infection. As the 70’s and 80’s rolled around, other more reliable methods were depended upon. These new methods were less dependent on wrapping and taping. The majority of clubfeet results from abnormal development of the mu .....

.... hit Australia since white settlement in 1788 (the Bathurst Bay killed 300 people but didn't reach land). Cyclone Tracy hit the coastal city of Darwin on Christmas Day 1974. Although people had warning on New Year's Day about Cyclone Tracy, they were busy preparing for Christmas and thought that the cyclone would pass away just like Cyclone Selma had done three weeks before. Cyclone Tracy came roaring down the Arafura Sea (where most the develop in that area) and was on track to bypass Darwin but changed direction 900 past Melville Island and straight towards the city. At .....

.... more and more everyday. Computer Systems these days are protected in one of two ways, or both. The first is through passwords. Passwords work only to a certain extent. Many people lack the forethought to make their password something that is not easily guessable. Your name, birth date, or anything that could be guessed with a little bit of thought is a bad idea. The other way to protect a network is to use a firewall. This technology is often effective but can be bypassed, and is often picky about what to let through. In my opinion firewalls give a false sense o .....