... that some of the younger stars within the cluster are only 300,000 years old. The is an emission nebula because of the O-type and B-type stars contained within it. These high-temperature stars emit ultraviolet (UV) light that ionizes the surrounding hydrogen atoms into protons (H+) and electrons (e-). When the protons and electrons recombine, the electrons enter a higher energy level (n=3). Then, when the electron drops from the n=3 level to the n=2 level, an Hphoton is emitted. 2 This photon has a wavelength of 6563 Å, and therefore corresponds to the red portion of the visible spectrum. It is these H photons which give the nebul ...

... life. If you feel that saving a person’s life is a bad thing, then I’m sorry. People often question whether or not we have the right to clone. We are all guaranteed rights by the fact that we are human beings. Those rights include the right to pursue areas of scientific study, and also the right to live. They could have argued the fact that man was not meant to walk on the moon. If they did, and the program did not succeed, then we would not have the technology that we have today. Cloning organs can only yield new technologies that will be beneficial to society. Organ cloning is something that would be extremely beneficial to society. Imagine the ability to "cr ...

... the plant. This constant pressure that exerts force from the water it takes from the ground, supposedly should provide enough power to continue the circulation and distribution of water efficiently throughout the entire plant. Proof of root pressure is exhibited through a process called guttation. Through guttation, tiny droplets of water are sometimes forced out of some plants. Guttation only works when soil is almost completely saturated with water and leaves are not losing much water through evaporation. When the xylem is full of water, the molecules will not move back down the structure, but rather need to be expelled from the plant. They will move, by the pr ...

... suggests that occasionally they may tunnel through dead leaves and loose soil in search of food. The shrews burrow is a small underground number of shallow tunnles under flat stones or logs. Burrows found in east Texas were about 2.5 cm round, from 25 cm to 1.5 m long, and not more than 20 cm below the surface. Each burrow has a large area at the end for the nest which was composed of shredded grass. These nests were used for young or as a resting place for groups of adult shrews. Compared to most types of shrews, the least shrew is sociable, and several may be kept together in captivity without conflict. They sleep together and help eachother to some degree in d ...

... believed in deism and advocated natural religion based on human reason. He believed in the harmony and rationality of the world. And although flawed, the work of Lamarck did not go unnoticed, however. Darwin also believed in the harmony of the world, and it was Darwin himself who said that Lamarck was the first man whose conclusions on evolution brought about excitement and attention. He was the one who showed law in organic and inorganic species evolution. As it turned out, the work of Lamarck was quite influential on Darwin. Lamarck's views on inheritance of characteristics can be seen in Darwin's accounts of natural selection. When Lamarck wrote of transmutation ...

... that the scientific community might learn something worthwhile if it can overcome the fear of ridicule associated with the topic and get some funding for targeted research to try to explain these occurrences. "It may be valuable to carefully evaluate UFO reports to extract information about unusual phenomena currently unknown to science," the report stated, adding that such research could also improve understanding of, and in some cases debunk, supposed UFO events. For example, Earth science researchers have eventually accepted several phenomena "originally dismissed as folk tales," including meteorites and certain types of lightning, the panel noted. The f ...

... one another. Quick access and easy programming is also another consideration that is made when considering this type of network. Intranets have just started to be implemented throughout the world and already a big change is being noticed. Companies are keeping track of all of their important information on web sites, which are restricted to users, unless they have the security code to access them. Thanks to Internet technology, companies and other types of organizations are able to keep all of their information organized and easily accessible with a click of a button. The Internet, how has it changed the world around us? Government, education, bus ...

... and then migrate down to the gulf coast states such as Texas and Louisiana. Their populations number in the millions. The third sub species is the Greater Snow Goose. They nest in the same marshes as the others except they migrate down the Atlantic Coast into the Carolinas and that vicinity. All three species have exploded in numbers since the 1950’s. Researchers have done a lot of study on the numbers and the degradation but may need to do more studies on the impact to other species and look for other options to control the populations. Population Trends The numbers of all "light" colored geese has been on the rise since data was first collected. The Less ...

... of the liver, is to release digestive enzymes to help the stomach and the small intestine with mechanical digestion. The gall bladder stores bile, which breaks down the partially digested foods that, enters the small intestine. Bile has no enzymes but still manages to break down fat into tiny droplets that are ready for faster chemical breakdown. The frog’s stomach is not as complex as a herbivore’s because they have to break down cellulose, which takes a longer time. (Giffard R. & Nat, M 1986) This concludes my study on the digestion system of the frog. FROG'S CIRCULATORY SYSTEM A frog has a closed circulatory system just like humans. This mea ...

... and size of the stacks were tremendous. By 1983, Geoff Ballard and a small team of physicists were able to develop the Proton Exchange Membrane (PEM) to produce nearly ten times as much energy, while being only a fraction of the size. How the PEM Works: A is an electrochemical device that produces electricity silently, without combustion. Hydrogen fuel, which is one of the most abundant chemicals in the universe, and oxygen from the air are electrochemically combined in the to produce electricity. Heat and pure water vapour are the only by-products of the . The Ballard Fuel Cell is made up of two electrodes, the anode and the cathode, separated by a polymer ...