.... Robert Goddard, confirmed that a satellite might be launched by means of a rocket. During the years 1943 through 1946 several studies concluded that available rockets would be unable to place a satellite into orbit. Work on rockets for missiles and upper atmosphere research was so great after World War II that by 1954 the possibility of launching a satellite was no longer in serious doubt. In October 1954 the Committee for the International Geophysical Year (IGY), announced to other countries that they were considering launching small satellite vehicles for space exploration. In April and again in July 1955 the USSR and the U.S. announced plans to launch for the IGY. ....

.... concept of “Eco-Defense”, in which he gives a right to protect their home, is an original and unique way of thinkng of environmental protectionism. McKibben shows us the damage we have done to the natural world and makes a plea for an end. He was born to two journalist parents, married a journalist, and wrote for and edited the The New Yorker . Abbey and McKibben write differently but they are bonded in that they both demand change. Abbey and McKibben would agree that something is wrong with America’s attitude toward the environment. However, Abbey’s writing invites doing battle with those who invade the forests while McKibben simply tries to p ....

.... to treating diseases based on modifying the expression of a person's genes toward a therapeutic goal. has been discussed in the context of treating lethal and disabling diseases although it also has a potential for disease prevention. is in its formative stages, being investigated in basic research laboratories. A number of early human clinical trials have been initiated to test important concepts that have emerged in these laboratory studies. The reasoning for lies in our understanding of the genetic basis of human disease. It is probably safe to say that genes we inherit from our parents influence virtually every human disease. A composite of approximately 150,000 ....

.... The expression unidentified flying object ". . . is thought to have origionated with Air Forse Captian Edward Ruppelt . . ."(Ritche 220). This was introduced to replace the term flying saucer. UFO sightings first started in the late 1800s, but there weren't that many until the 1940s. In the 1940s UFO sightings were being told all over the world. Since the 1940s UFOs are seen every day by people all over the world. Ufologists have come up with a system to divide UFO incidents into three major types of close encounters. First, close encounter of the first kind (CEI) are classified as UFO sightings. Second, close encounters of the second kind (CE2) are sightings an ....

.... the footsteps of a beetle walking on sand from a distance of over six feet! 4. The giant Flying Fox bat from Indonesia has a wing span of six feet! 5. Disk-winged bats of Latin America have adhesive disks on both feet that enable them to live in unfurling banana leaves (or even walk up a window pane). 6. Nearly 1,000 kinds of bats account for almost a quarter of all mammal species, and most are highly beneficial. 7. Worldwide, bats are the most important natural enemies of night- flying insects! 8. A single brown bat can catch over 600 mosquitoes in just one hour! 9. Tropical bats are key elements in rain forest ecosystems which rely on them to pollinate flowers and ....

.... an insecticide up until 1972. It almost wiped out the Bald Eagle population. It caused the birds to lay eggs so thin shelled eggs the eggs were unhatchable. Laws banned the use of DDT and also required the reduction of lead in gas. DDT is still used in developing countries on the malaria-carrying mosquito. Oil spills also have harmful effects, luckily chemicals can neutralize the oil before massive damage occurs. In 1983 the Dow Chemical Company’s factory, a major producer of chemicals, showed contamination from dioxin. Dow undertook a 3 million dollar study of the material. The company announced that Dioxin is less health and life threatening. High-temperatures ar ....

.... of a comet is the head. The head is just the name given to the coma and nucleus. The last of the features of the comet are the tails. Most have two tails. One tail is made from dust particles and the other, called ion tail, is made gases. As a comet approaches the sun, the frozen gas becomes unfrozen which causes the dust particles to become free. Light pressure from the sun and some other forces cause these materials to move away from the head of the comet and in the opposite direction from the sun. According to Charles A. Schweighauser in his book, entitled Astronomy from A to Z: A Dictionary of Celestial Objects and Ideas, he states that we see comet heads and ....

.... of these organs is great due to the reproductive cycle of pigs. The biggest obstacle is the issue of rejection. The new organ is typically killed, even before the surgeon closes the incision, due to hyperacute rejection. This process clots the blood, by forming antibodies that attach to the endothelium of the blood vessels in the organ. The complement system creates gaps in vessels, allowing gaps to form and clots to accumulate. Therefore, a complement inhibitor was developed as the gene was cloned, introduced into pigs whose cells produced this protein. Another thing discovered, was that the cells lining the pig vessels have a sugar molecules called alpha-galactose, ....