.... This abundant source of energy comes from the sun. Solar energy is the visible energy produced in the sun as a result of a constant nuclear fusion reaction that is taking place. The amount of energy at the solar constant, which is at outer edge of the earth's atmosphere, is two calories per minute per cm squared. A calorie is the amount of energy needed to raise one gram of water one degree Celsius. If we could efficiently harness the energy bombarding the earth for twenty-four hours we could power New York for a year. Unfortunately the photovoltaic cells that change the energy into electricity are so inefficient that it would take twenty-five years to pay for it's self i ....

.... usually painless, but almost always results in hoarseness and a change in the person’s voice. If the tumor occurs in the supraglottis, or the section above the vocal cords, it may cause a lump in the throat, sore throat, or earaches. When the tumor develops in the area where the larynx and trachea join, subglottis, the person experiences trouble in breathing, very noisy breathing. Constant coughing or a feeling of a lump that doesn’t go away are also signs of larynx cancer. Tumor development in the subglottis is very unusual and rare. As a tumor grows it may cause pain, weight loss, bad breath, frequent choking on food, and hard swallowing. Only qualified d ....

.... anywhere else and hoaxes and human misconceptions are responsible for over 90% of sightings. The Air Force can prove UFOs do not exist since the sightings have been missed as hoaxes and human misconceptions. Humans have mistaken "meteor trails, comets, odd shaped clouds, balls of lightning, burning marsh gases, airplanes, lights of cars, birds, and many other objects as UFOs," (Kraske 22). Pranksters have also misled UFO investigation by doing actions that confuse and mislead humans. For example, they flash images of car headlights and city lights on the Earth. Pranksters also confuse people by tossing discs from tall buildings and taking pictures of spaceship models. O ....

.... acute lung injury by these groups of agents involves a permeability defect in the blood-air-barrier (the alveolar-capillary membrane); however, the precise mechanisms of toxicity remain an enigma. The U.S. produces over a billion pounds of phosgene (CG) per year for industrial uses; however, we do not stockpile this agent for military use. Perfluoroisobutylene (PFIB) is a toxic pyrolysis product of tetrafluoroethylene polymers encountered in military materiel (e.g., Teflon7, found in the interior of many military vehicles). The oxides of nitrogen (NOxs) are components of blast weapons or may be toxic decomposition products. Smokes, e.g., HC, contain toxic compounds that ....

.... in the 1400's it was a stitched leather pouch soaked and then stuffed with goose feathers. Upon drying, the feathers expanded and the leather contracted, forming an extremely hard mass. This was hammered round and painted white. The feathery sometimes flew over 300 yards and was durable - until it got wet. Then it would split open. The Gutta percha was introduced in 1850 and was made of a rubberlike sap from the Malaysian sapdilla tree. The material was heated to soften it and then hand-formed into a solid, one piece ball.Gutta percha was black, so the early balls were painted white. Easier to make, less expensive, and more durable, the gutta revolutionized golf. ....

.... temperature experienced on Earth begins to rise. Climate change is a part of the Earth's history. There have been dramatic fluctuations in overall average temperature for the past 150,000 years that are a direct association with carbon dioxide levels. In the past the temperature highs and lows have been the same with carbon dioxide level highs and lows, this does not seem to be a mere coincidence. Carbon dioxide currently accounts for 0.03% of the gas content within the atmosphere. However, it has a adverse impact on the earth's temperature. Thus, minor fluctuations in the percentage of atmospheric carbon dioxide will likely have a significant effect on the global tem ....

.... away, and the rays from the sun are indirect. They are indirect, because of the earth’s round shape. If you would take all ball, and shine a flashlight on it, there is no way possible to get the light to spread evenly over the entire ball. This is just like Earth and the sun. The earth’s shape makes the light amount about even, for example, at 40%S and 40%N latitude because the rays sort of fan out from the equator. While the earth is revolving around the sun, it is also rotating on it’s own axis. One full rotation equals one day or twenty- four hours. At the middle of the day, noon, the sun is as direct as it can be, and this is also the hottest time of the day. ....

.... Clouds with vertical growth include Cumulus and Cumulonimbus clouds. High clouds are made of ice crystals due to the cold air in the upper sky. The base of a high cloud above the surface can be anywhere from 6000-18000m in the tropics to 3000-8000m in the polar regions. Cirrus clouds are the most common of the High Cloud group. They are composed entirely of ice and consist of long, thin, wispy streamers. They are commonly known as "mare's tails" because of their appearance. Cirrus clouds are usually white and predict fair weather. Cirrostratus clouds, belonging to the high cloud group, are sheet like thin clouds that usually cover the entire sky. The sun or moon can shine ....