.... Act of 1925 which authorized the Bureau of Mines to build and operate a large-scale helium extraction and purification plant. From 1929 until 1960 the federal government was the only domestic helium producer. In 1960, Congress amended the Helium Act to provide incentives to natural gas producers for stripping natural gas of its helium, for purchase of the separated helium by the government, and for its long-term storage. With over 960 million cubic meters (34.6 billion cubic feet) of helium in government storage and a large private helium recovery industry, questions arise as to the need for either the federal helium extraction program or the fede .....

.... to keep the space craft fueled. A consideration has been to drop off fuel deposits on Mars for the trip home. But there are still many questions left open. The most recent of NASA’s plan, is this... They’ll use 3 different space ships: A habitat lander, a cargo lander, and a crew transport vehicle. The CTV carries them to the habitat lander. They land on Mars, and do their business. When they’re done, the habitat lander takes them back up to orbit where they meet back up with their CTV, waiting patiently in orbit, that takes them back home. The money issue is being handled in many different ways. The most successful plan so-far is the T .....

.... since a systematic compilation of information on lightning casualties does not exist. Many case histories show heart damage. Inflated lungs and brain damage have also been observed from lightning fatalities. Loss of consciousness, amnesia, paralysis and burns are reported by many who have survived. Deaths and injuries to livestock and other animals, thousands of forest and brush fires, as well as millions of dollars in damage to buildings, communications systems, power lines, and electrical systems are also the result of lightning. Finally, the threat of lightning causes many work stoppages and lost production increasing the time and cost requi .....

.... an atom is a tiny bit of matter that has very little weight. They are much too light to be weighed directly, but scientists have developed methods of determining these tiny weightd by using special labratory instruments. Hydrogen is the lightest of all atoms and carbon atoms weigh twelve times more than the hydrogen atom. Atoms that make up one alement are not like atoms that make up another element. These (atoms) are not simple particles, their structure is very complexe. They are, in fact, made up of smaller bits of matter called subatomic particles. An atom has two parts. Those two parts are; 1)at the center is a nucleus, a densely .....

.... resistance to change� (Paluszny 1). For centuries, medical professionals have tried to understand autism and its origin. The above example shows only a few examples of autistic behavior. The history of autism extends, as far back as the late sixteenth century; however, during that time it was not identified as this illness. Here is a statement from before the discovery of the illness: In 1799, a boy about eleven years of age was found naked in the woods of Averyron, France. He was dirty, covered with sores, mute, and behaved like A wild animal. Jean Itard, the physician of the new institution for deaf-mutes, Was given charge of the abandoned .....

.... glands and the sloughing off of their own tongues, throat lining, and wind pipe, crying tears of pure blood from hemorrhaging tear ducts and the disintegration of the eyeball lining and bleeding from every opening on the body. You see the blood spattered room and pools of black vomit, expelled during the epileptic convulsions that accompany the last stages of death. Their hearts have bled into themselves, heart muscles softened and hemorrhaging , the brain clogged with dead blood cells (sludging of the brain), the liver bulging and yellow with deep cracks and the spleen a single hard blood clot. Babies with bloody noses born with red eyes lay dead .....

.... escapes the earth's atmosphere. Thus, the temperature experienced on Earth begins to rise. Climate change is a part of the Earth's history. There have been dramatic fluctuations in over all average temperature for the past 150,000 years that suggest a direct association with carbon dioxide levels. In the past the temperature highs and lows have been in tandem 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 disproportionate impact on the earth's temperature. Thus, minor fluctuations in the percentage of atmos .....

.... which has a total length of two and a half inches, to the albatross, which has a wing span of eleven and a half feet. The largest bird is a bird that cannot fly, the ostrich. Ostriches can stand almost eight feet high and can weigh near 350 pounds. Other extinct birds have been measured to stand over ten feet high. The evolution of birds is still being argued. Most people believe that birds evolved from reptiles. Because of birds mainly delicate bones, few fossils have been left behind for scientists to study. The earliest bird fossils come from archaeopteryx. The fossils that have been discovered from archaeopteryx include six partial skeletons a .....

.... balancing themselves, have their actual center of gravity far from where an observer would locate it. Another example of the importance of the center of gravity is how an airplane flies. If the center of gravity is too far forward, the plane will have an unstable equilibrium and in turn will take a nose dive into the ground. If the center of gravity is too far aft (back) the plane will fall out of control. You must limit the weight and its positioning on board the aircraft to prevent these occurrences from happening. The engineers design an airplane so that it has a maximum weight capacity of passengers, cargo, fuel, and etc... The engineers desig .....

.... done about the pollution, and until something is done about the oil being put into the sea, our oceans are at risk. So just how much oil is put in the oceans? According to a study conducted by the World Research Institute, "…between 3 and 6 million tons of oil are discharged into the oceans every year" (Gorman 48). To put this in perspective, that is approximately 4 football stadiums filled to the top with oil. That is just every year…and this has been going on for more than a decade. In total, 45 million tons of oil in the past ten years that have been put into the oceans. There are several ways that oil ends up in the oceans. One meth .....