.... when a Swiss Physicist named Rasul Pictet and a French Engineer named Louis P. Cailletet liquefied oxygen for the first time. Cailletet created liquid oxygen in his lab using a process known as adiabatic expansion, which is a "thermodynamic process in which the temperature of a gas is expanded without adding or extracting heat from the gas or the surrounding system"(Vance 26). At the same time Pictet used the "Joule-Thompson Effect," a thermodynamic process that states that the "temperature of a fluid is reduced in a process involving expansion below a certain temperature and pressure"(McClintock 4). After Cailletet and Pictet, a thir .....

.... fills more beds than almost any other illness and the financial cost of schizophrenia due to direct medical costs, lost productivity and Social Security pensions is between $30 billion and $48 billion according to Federal figures (American Pychological Association (APA), 1996). There are many theories about the aetiology of schizophrenia, but research has failed to pinpoint the origins. There is evidence that environmental pathogens (for example, viruses) are involved in the causation of schizophrenia. There is also evidence for a role of hereditary influences and obstetric complications on the incidence of schizophrenia. Furthermo .....

.... 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 corroded granite. Acidic chemicals, and alkaline chemicals react to each other by reducing the alkalinity or acidicy of each other. .....

.... destination, because they had to walk on foot or on horse back. There were no cars, and there were no airplanes, only there own two legs, and a horses. Something needed to be done. It took way too long to get into contact with people, and it took the same amount of time to get a response. In 1886, a man by the name of Alexander Graham Bell developed an interesting object, that gave you the capability of talking live with one person, other then yourself. This object later became known as the well respected telephone. Although when Bell first invented the phone there were many kinks that needed to be worked out. And over time, after being c .....

.... rubisco. What happens is that rybluose which contains five carbons takes the carbon in carbon dioxide and makes the six carbon sugar glucose as described in Vodopich's definition. For the first part of our experiment we wanted to observe how using paper chromatography separates pigments. Paper chromatography works since the pigments in plants have different polarities, weights, and sizes. Although, it was hard to make a clear hypothesis as to how the pigments would travel due to my lack of knowledge of such pigments, I believed that the different pigments would indeed be divided. Furthermore that the lightest and most polar pigment .....

.... reduce the inflamation in the airways and reduce the need for other drugs. Steroids though take a few hours to have an effect and therefore ineffective if needed for immediate relief. Other treatments include allergy shots and Antihistamines which can be used as a preventer of asthma. These reduce allergic reactions in patients and therefore reducing the chance for allergies to trigger inflammation in the asthmatic. Antihistamines however, cause drowsiness and should not be taken when driving or working at jobs where you must be alert. The medications that are discussed in the case study are bronchodilator inhalers (such as ventolin) .....

.... most common components of the atmosphere are Carbon Dioxide at 95.32%; Nitrogen at 2.7%; Argon at 1.6%; Oxygen at 0.13%; Water at 0.03%; and Neon at 0.00025 %. Martian air contains only about 1/1,000 as much water as our air, but even this small amount can condense out, forming clouds that rise high in the atmosphere or swirl around the slopes of towering volcanoes. Local patches of early morning fog can form in valleys. At the Viking Lander 2 site, a thin layer of water frost covered the ground each winter. There is evidence that in the past a denser Martian atmosphere may have allowed water to flow on the planet. Physical features closel .....

.... behavior is controlled by pheromones. Humans have used perfumes for thousands of years, but there is a basic difference between perfume and pheromones. Pheromones are produced by the body and usually do not smell at all pleasant, whereas perfumes are either synthesized or extracted from natural products and are employed because of their pleasant smell. Scientific research suggests that there are human pheromones for both the male and the female. Females have a better developed sense of smell and testing indicates that they are more responsive to male pheromones than the reverse. Research over the years has found that the male pherom .....

.... spent only 10.79 percent on transportation. This difference of nearly 7 percent, gives the Japanese economy much more money for investing in their future. Our Economy is not the only thing we should worry about, and it is also not the only thing that can be improved by the use of bicycles. There are several major problems that could be drastically reduced by the increased use of bicycles. Traffic would be a lot lighter due to the extremely small size of bicycles. It would also greatly reduce the wear and tear on our roads and highways, and therefore reduce government expenditure. But one of the most serious problems it would reduce .....

.... hang long stringy tentacles, that can reach a length of up to fifty meters. The tentacles are made-up of three different types of polyps. The names of these three polyps are: dactylozooid, gonozooid, and gastrozooid. The polyps are the parts that: capture prey, digest prey, and reproduce. The dactylozooids have cells called nematocysts(3). The nematocysts release a toxin(4) into anything that they come into contact with. The gastrozooids then attach to the dead/stunned victim, and spread over it. They digest it, and transfer food to the rest of the man-of-war. Last, the gonozooids create other polyps. The means by which the man-of-wa .....