.... a single, powerful emotion is felt such as fear, anger, or joy, for example. Most dream content consists of memories, and are in the form of interrupted stories with frequent shifts of scene. One difference between waking and dreaming consciousness is that the latter tends to be an internal hallucinatory-like experience disconnected from the external world. Many dreams collected in laboratories are rather common, but some people tend to experience some bizarre dreams. Early in the 20th century, Sigmund Freud believed that dream content was composed of the mental processes different from that used in the awake state. He believed this was what dominated the dreamin ....

.... concerns are focusing attention on renewable energy sources. Hydroelectric power generation was made more efficient by the establishment of the Federal Power Commission in 1920. Although additional hydroelectric plants were being built, the simultaneous development of larger and more cost-efficient steam-power plants made it obvious that only very large and costly hydroelectric installations could compete effectively, and that the federal government would have to assume a major share in their construction. Motivated by the search for the multiple use of water resources, including navigation, flood control, and irrigation, in addition to power production, the Tennessee ....

.... 2 seconds after energizing the fan circuit, a short was indicated in the current from fuel cell 3, which was supplying power to cryogenic oxygen tank 2 fans. Within several additional seconds, two other shorted conditions occurred. Electrical shorts in the fan circuit ignited the wire insulation, causing temperature and pressure to increase within cryogenic oxygen tank 2. When pressure reached the cryogenic oxygen tank 2 relief valve full-flow conditions of 1008 psi, the pressure began decreasing for about 9 seconds, at which time the relief valve probably reseated, causing the pressure to rise again momentarily. About a quarter of a second later, a vibration disturb ....

.... characterized by a smorgasbord of symptoms that can be broken into manic and depressive episodes. The depressive episodes are characterized by intense feelings of sadness and despair that can become feelings of hopelessness and helplessness. Some of the symptoms of a depressive episode include anhedonia, disturbances in sleep and appetite, psycomoter retardation, loss of energy, feelings of worthlessness, guilt, difficulty thinking, indecision, and recurrent thoughts of death and suicide. The manic episodes are characterized by elevated or irritable mood, increased energy, decreased need for sleep, poor judgment and insight, and often reckless or irresponsible beha ....

.... the pH of a normal lake ( 5.8 ) to 4. Acid Rain has been known to reach the acidicy of pH 2, ( battery acid has a pH if 1 ) this is a drastic change, as normal rain is average pH 5.2. Acid Rain can dissolve limestone and chalk, and corrodes outdoor structures. Statues and monuments that are left unprotected can fall victim to the unpredjudiced destruction of acid rain. Acid Rain reacts to different types of soil and rocks in two ways. 1) Acid rain will dissolve alkaline rocks and soil, or will neutralize the alkalinity. 2) Acid rain will increase the acidicy of already acidic rocks and soil, such as granite, or the soil which results from corro ....

.... we stepped out of the car we could see and hear birds singing. We could also smell, hear, and see the beautiful trees swaying in the gentle breeze. Pictures of a robin and a cardinal that we saw while stepping out of the car. We all got our gear out of the car and walked over to the trails. We had to decide what trail to take. We had three choices the first trail was half a mile long, the second trail was two miles long, and the third trail was four miles long. Since it was such a beautiful day we all decided to take the third trail that was four miles long. We started hiking around 11:00 AM. While we were hiking we heard wings flapping, we all turned and ....

.... as hot springs or geysers (diagram: E). Utilizing geothermal energy not only contributes to our energy supply, but also reduces energy demand (through the use of geothermal pumps to heat and cool buildings, reducing the need for natural gas and other nonrenewable resources). It is unfortunate that only a small part of our geothermal resources are being used today. Hot water, at temperatures between 300 and 700 degrees Fahrenheit, is brought from an underground reservoir to the surface and is converted to steam by using changes in pressure. The steam and liquid are separated, with the steam turning turbines (generating electricity) and the water is injected back into th ....

.... source of revenue for people who need it. In reality, deforestation has few advantages all of which are in the short term, it has terrible consequences and its long term effects are devastating, this is why it should be stopped. Since its discovery, 30% of Brazil's rain forests have disappeared, and the country is still losing more rain forest each year than any other on the planet. Brazilian forests are burned or felled at the rate of 1800 hectares (about 4500 acres) every hour! (Dwyer 39) Deforestation started hundreds of years ago, but only became a major problem in the second half of this century, when it increased dramatically. It was enhanced by the Brazilian gover ....