.... the existence of other galaxies. He noted that the light from these galaxies was shifted toward the red. That is it's wavelength was longer than that of the light emitted from the corresponding atoms in the lab. Furthermore he found that the farther away the galaxy was the more it was shifted toward the red end of the spectrum. Hubble attributed this shift to the doppler effect. Hubble saw this and concluded that all galaxies are rushing away from us and the universe is expanding as a whole. Modern equipment has observed and verified this so-called Hubble expansion exists throughout the observable universe. This shows three important things .....

.... in the 1960's by General Electric for NASA. It was considered as a definite possibility for an alternative power source for space program, but the cost and size of the stacks were tremendous. By 1983, Geoff Ballard and a small team of physicists were able to develop the Proton Exchange Membrane (PEM) to produce nearly ten times as much energy, while being only a fraction of the size. How the PEM Works: A is an electrochemical device that produces electricity silently, without combustion. Hydrogen fuel, which is one of the most abundant chemicals in the universe, and oxygen from the air are electrochemically combined in the to produce electricity. Heat and .....

.... At the age of twelve, Boyle traveled to the Continent, as it was referred to at the time. There he found a private tutor by the name of Marcombes in Geneva. While traveling between Italy, France, and England, Boyle was being tutored in the polite arts, philosophy, theology, mathematics, and science. As the years went by, Boyle became more and more interested in medicine. His curiosity in this field led him to chemistry. At first Boyle was mainly interested in the facet of chemistry that dealt with the preparation of drugs, but soon he became genuinely interested in the subject and started to study it in great detail. His stud .....

.... oestrogen that stimulates the pituitary to produce leutinising hormone (LH). As LH increases the size of the follicle increases until an egg is released. The corpus luteum formed in the follicle secretes progesterone that prepares the lining of the uterus for pregnancy. If fertilisation does not occur the lining of the uterus is discharged from the body in the process called menstruation. What is the birth control pill? The combined oral contraceptive pill (the pill) is a reversable, hormonal method of birth control. The pill consists of a mixture of two synthetic hormones similar to oestrogen and progesterone, the woman’s natural hormones which .....

.... is very similar to the Lesser and can only be distinguished by close observation. Both the Lesser and the Ross nest in salt marshes along Hudson Bay and then migrate down to the gulf coast states such as Texas and Louisiana. Their populations number in the millions. The third sub species is the Greater Snow Goose. They nest in the same marshes as the others except they migrate down the Atlantic Coast into the Carolinas and that vicinity. All three species have exploded in numbers since the 1950’s. Researchers have done a lot of study on the numbers and the degradation but may need to do more studies on the impact to other species and look for other optio .....

.... (NOFAS 1). Fetal Alcohol Syndrome is the only disease that is one hundred percent preventable if the mother refrains from drinking while pregnant. Drinking liquor at all during pregnancy is not advisable. There is no way of measuring how much alcohol one can consume before defects occur, and no proof that small amounts of liquor are safe. As little as one drink a day can cause a baby some degree of harm and interfere with their normal development. The more the mother drinks the greater the risk of damage to the baby. "The Syndrome occurs in anywhere from point five to three live births per thousand in western countries…It is estimated that be .....

.... on the body evoke generalised, nonspecific responses. For example, they all unable you to concentrate as would normally be expected, they activate one¹s sympathetic nervous system, and they also increase the amount of the hormone epinephrine that is being released into your body. When people say they¹ve been under going alot of stress they are usually referring to a couple of unpleasant experiences. Now that we have an idea on what stress is the next question we should ask ourselves is ³what is or can cause stress². CAUSES OF STRESS There are many different things that cause stress. One may be if you have a big term paper due and you want to do your best to i .....

.... to themselves, a method of creating spare organs for transplants, and a cure for genetic disease. Human cloning may provide numerous benefits to mankind and should not be banned. Cloning is the Creation of another person that is an exact copy of another person (Clarke 1); this leaves too much to the imagination and leads to misunderstanding of the methods scientists use in cloning. In more clear terms, cloning is the process in which DNA of a female egg is replaced with different DNA from another cell. This process is referred to as the Nuclear Transfer or Nuclear Substitution. DNA molecules are the strings of protein that hold genetic coding. In this o .....