.... bombs are explosive devises that depend on the release of energy in a nuclear reaction known as fission. The bomb releases energy of a million times greater than the equal weight of a chemical high-explosive such as TNT . During the World War 2 in 1945, the first Atomic Bomb blast on Hiroshima, Japan, obliterated three-fifth of the city within seconds and killed a total of 115,000 people in only a few minutes according to a local newspaper in Japan. Moreover, the second bomb being dropped at Nagasaki killed an average of 70,000 people. In these two blasts, entire families perished, leaving no one to report the death until four months from the catastrophe. T .....

.... a civilization, and even today we use their theories to initiate our scientific and artistic endeavors. All western thought can find its roots in the philosophy and science of the Greeks, even the way we see the world is influenced by the ideologies of Ancient Greece. The Greeks were the first to seek a greater understanding of the world, to know "why" we are not just "what" we are. The Greeks invented science and explored it in its truest form, philosophy. Through the years we have developed tools that we hope can prove or disprove various hypothesizes, to further our understanding of any number of things. We divide science into categories and then sub-divi .....

.... made when an atom gains an electron to form a negative ion or loses an electron to form a positively charged ion. As an example of an ionic bond let's used the elements Cl and Na. First, we must understand that there is an attraction between them because one is positive and the other negative and that the Cl atom contains seven valence electrons and Na one. So, as the atoms bond the Na loses its valence electron and Cl gains it making its outer shell complete and it more stable. During this reaction light and heat are given off. This shows an exothermic reaction, which is a release of energy. The electrostatic energy between the two holds them together. Ionic b .....

.... scientist, Julius Scaliger, discovered platinum in 1557, but fairly large quantities were not discovered until around 1750, when the Spaniards discovered it in Peru. They named the metal platinum, deriving from their word plata, meaning silver. The ore, called native platinum, usually occurs in beds of gold-bearing sand. Miners call it white gold. Native platinum contains from 60 to 85 percent pure platinum. The small, irregular grains that contain the ore also contain other rare metals, such as iridium, osmium, palladium, rhodium, and ruthenium. The grains also contain small amounts of iron, copper, chromium, and titanium. A large nugget of platin .....

.... to risk their lives to share food with the less fortunate. 3. The African Heart-Nosed bat can hear the footsteps of a beetle walking on sand from a distance of over six feet! 4. The giant Flying Fox bat from Indonesia has a wing span of six feet! 5. Disk-winged bats of Latin America have adhesive disks on both feet that enable them to live in unfurling banana leaves (or even walk up a window pane). 6. Nearly 1,000 kinds of bats account for almost a quarter of all mammal species, and most are highly beneficial. 7. Worldwide, bats are the most important natural enemies of night- flying insects! 8. A single brown bat can catch over 600 mosquitoes in just .....

.... can be separated into two more categories, the polar, hydrophilic, and the nonpolar, hydrophobic. A fatty acid is nonpolar, hence it doesn't mix with water. Molecules of a certain class have similar chemical properties because they have the same functional groups. A chemical test that is sensitive to these groups can be used to identify molecules that are in that class. This lab is broken down into four different sections, the Benedict's test for reducing sugars, the iodine test for the presence of starch, the Sudan III test for fatty acids, and the Biuret test for amino groups present in proteins. The last part of this lab takes an unknown substance and .....

.... to changes in the frequency within a population or a species of its alleles (alternative genes) and their effects on the form, or phenotype, of organisms that make up that population or species. Another way to state the difference is that macroevolution is between-species evolution of genes and microevolution is within-species evolution of genes. There are various kinds of dynamics of macroevolution. Punctuated equilibrium theory proposes that once species have originated, and adapted to the new ecological niches in which they find themselves, they tend to stay pretty much as they are for the rest of their existence. Phyletic gradualism suggests that sp .....

.... in a small gene pool due to sampling errors in propagation of alleles or chance. Genetic drift depends greatly on the size of the gene pool. If the gene pool is large, the better it will represent the gene pool of the previous generation. If it is small, its gene pool may not be accurately represented in the next generation due to sampling error. Genetic drift usually occurs in small populations that contain less than 100 individuals, but in large populations drift may have no significant effect on the population. Another mechanism is gene flow which is when a population may gain or lose alleles by the migration of fertile individuals between populations. T .....