.... gravity entirely. It would keep on rising forever. The speed with which you need to throw the rock in order that it just barely escapes the planet's gravity is called the "escape velocity." As you would expect, the escape velocity depends on the mass of the planet: if the planet is extremely massive, then its gravity is very strong, and the escape velocity is high. A lighter planet would have a smaller escape velocity. The escape velocity also depends on how far you are from the planet's center: the closer you are, the higher the escape velocity . The Earth's escape velocity is 11.2 kilometers per second (about 25,000 M.P.H.), while the M .....

.... industrial technologies that keep our economy growing and improve our global competitiveness. They cut America's demand for imported oil by nearly 100 million barrels a year—reducing our dependence on foreign oil suppliers and cutting our trade deficit. The future looks even better. Advanced-design nuclear power plants are now being developed—quicker and less costly to build, better performing, and even safer than today's plants. These plants will supply our children's and grandchildren's electricity—while helping to protect their environment. Cheers For Energy Efficiency We Americans should be proud of oursel .....

.... the high points of waves, and troughs, the low points. Constructive interference occurs when two waves of the same frequency meet at a crest or trough therefore combining to form a wave that has an amplitude equal to the sum of the individual amplitudes of the original waves. Stimulated emission is the process that the laser works on, which was first proposed by Albert Einstein in 1917. When a sufficient number of atoms, either gas solid or liquid, absorb energy so that they are in an excited state of higher energy stimulated emission can occur. Light of a specific wavelength can produce more light with the same phase and direction th .....

.... 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 atmospheric carbon dioxide will likely have a .....

.... and so on. William Osler, the acknowledged father of modern medicine, stated of migraine treatment,”Cannabis indica is probably the most satisfactory remedy”(Russo, 1998). The best way to describe a study like this is historical. Many of the historical uses of marijuana may have contemporary relevance. As I stated before, there are very few ways to study something that the society feels is harmful to the subject. This is exactly what the research is pointing out by voicing the words of our ancestors. This historical point-of-view allows our conscience to be at ease so that accurate tests can be performed to conclude a up .....

.... with little or no treatment. The term was first considered to be important about 20 years ago when scientists in Sweden and Norway first believed that acidic rain may be causing great ecological damage to the planet. The problem was that by the time that the scientist found the problem it was already very large. Detecting an acid lake is often quite difficult. A lake does not become acid over night. It happens over a period of many years, some times decades. The changes are usually to gradual for them to be noticed early. At the beginning of the 20th century most rivers/lakes like the river Tovdal in Norway had not yet begun to die. Ho .....

.... motherland to the east. From this division of powers and alliances we find ourselves locked into a self-induced ignorance and stifling conservatism. It's ironic that we have the opportunity to solve most of Canada's critical environmental issues in one fell swoop . . . with one simple plant. It is ignorance and the maintenance of the status quo that has blinded and crippled our ability to realize this resource. INTRODUCTION A plant exists that is so strong that it can be grown without requiring chemicals in almost every part of the world. Many have touted this plant as a possible way in which to wean society from its dependence on fos .....

.... for the people of this planet. Therefore, it is necessary to weigh the benefits and consequences of this relatively recent breakthrough and determine in which ways it can be used to humanity's best advantage. This speech will investigate the ways in which genetic engineering affects two important areas in today's society. The first one will be the improvement of the world's agricultural techniques. With an ever-increasing growth in world population, the Earth's resources are constantly becoming scarce. The advent of genetic engineering may be used to avert the occurrence of worldwide famine and starvation. The second one investigate .....

.... weight and higher chance of the baby dying at birth. Smoking is the single largest modifiable( changeable) risk factor in fetal growth retardation. Maternal smoking during pregnancy is also associated with genetic defects as well as an increased incidence of congenital malformations such as cleft palates, microcephalus, and clubfoot. Mothers who smoke one pack a day during pregnancy have an 85% increased risk of having a child with mental retardation. Mothers that smoke during their pregnancy have double the chance of having a child with behavural problems. Another one of the biggest factors that disrupts fetal growth and development is alc .....

.... are many aspects that have to taken care of when an ectopic pregnancy is identified. Not only are there the symptoms, the diagnosis, the treatments, and the results to deal with, but also moral ethics come into play. The term “ectopic� literally means “out of place�. Other things in the human body can also be considered ectopic if it sits in an abnormal position in the body. A heart beat that originates from and unusual part of the heart is an “ectopic� heart beat, and a baby that is not properly nestled in the uterine cavity is an “ectopic� pregnancy. In an ectopic pregnancy the baby can be found in various different lo .....