.... research on improving solid- propellant rockets. He is known best for firing the world's first successful liquid-propellant rocket on March 16, 1926. This was a simple pressure-fed rocket that burned gasoline and liquid oxygen. It traveled only 56m (184 ft) but proved to the world that the principle was valid. Gossard Died August 10, 1945. Gossard did not work alone, he was also in partnership with a Russian theorist named Konstantin Tsiolkovsky. Tsiolkovsky was born on September 7, 1857. As a child Tsiolkovsky educated himself and rose to become a High Sc .....

.... affects the experiences of a Schizophrenic (DEA,1). On April 16, 1943, while Dr. Hofmann was measuring a fresh quantity of LSD, he accidentally dosed himself and was overcome with confusion. He was then obligated to leave work due to “a sensation of mild dizziness” and “extreme activity of imagination.”(Discovery, 2) On April 19, 1943, at exactly 4:20 pm, Dr. Albert Hofmann ingested 0.25 mg. of liquid LSD and journeyed on the first intentional “acid trip.” In 1947, Dr. Hofmann’s employers, Sandoz Laboratories .....

.... In the 1980s, the majority of infections in Singapore were homosexual or bisexual men; but now there are many infections seen among heterosexual men and women. Heterosexual sex is now the main method of transmission in Singapore and over 75% of infections throughout the world are acquired through heterosexual intercourse. Not everybody who has sex with an infected person will get infected. However, the risks increase sharply in the presence of other Sexually Transmitted Diseases (STD) i.e. gonorrhea, herpes and syphilis or when the infected person has sympto .....

.... is often referred to as Criminal Psychology. Forensic psychologists are most known for working in the courts but they can also work in work in a penal institution, state mental hospitals, law enforcement agencies, or a private practice (The Page"). Forensic psychologists also provide treatment services. These include counseling for adults and children involved in divorce proceedings and anger management counseling ("Psychology Information Online" 1998). Forensic psychologists help a lot with family issues. Some examples of the services for the family court c .....

.... may form when a solution of a substance evaporates. Crystals may also form when a vapor or molten substance solidifies. Allotropes are different forms of the same element. For Example, oxygen has two allotropes, normal oxygen and ozone. Pure carbon also has two allotropes, diamond and graphite. A crystal of diamond is in fact a single giant molecule in which every carbon atom is linked to four other, by four equal, strong bonds. These bonds are arranged tetrahedrally round each atom and there are no planes along which the giant molecule can easily be split. This .....

.... The same species, thus promoting out crossing. Many angiosperms display other modes of pollination, including self-pollination. Evolutionary Origins Plants derived from an aquatic ancestor, but the evolution of their conducting tissues, cuticle, stomata, and seeds has made them progressively less dependent on water. The oldest plant fossils date from the Silurian Period, some 430 million years ago. The common ancestor of plants was a green alga. The similarity of the members of these two groups can be demonstrated by their photosynthetic pigments (chlorop .....

.... . In Europe, mixed with other compounds has long been added to motor fuels. was isolated in 1825 by Michael Faraday, but its structure remained amystery for 40 years. The problem was perplexing because the C(6)H(6) formula indicateda high degree of unsaturation, but does not display the reactivity characteristic of such compounds. In 1865, German chemist Friedrich August Kekule von Stradonitz proposed thatbenzene is structurally a planar hexagon in which the six carbon atoms are joined byalternating single and double bonds. Because this simplistic .....

.... areas to achieve a climax state which provides less forage for wildlife. While terrestrial wildlife is benefited by fire, aquatic ecosystems are negatively impacted by large fires through the increase in sediment flow. Fire is essential in maintaining biological diversity in the Northern Rocky Mountain forests. NEGATIVE EFFECTS - AQUATIC ECOSYSTEMS Contrary to the beneficial impacts of fire on terrestrial wildlife, aquatic ecosystems are negatively affected, such as the decrease in fish populations by fire. In the North Fork Shoshone River adjacent to .....