.... was the start of time and space. The matter and radiation of that early stage rapidly expanded and cooled. Several million years later, it condensed into galaxies. The universe has continued to expand, and the galaxies have continued moving away from each other ever since. Today the universe is still expanding, as astronomers have observed. The Steady State model says that the universe does not evolve or change in time. There was no beginning in the past, nor will there be change in the future. This model assumes the perfect cosmological principle. This principle says that the universe is the same everywhere on the large scale, at all times.2 It maintains t .....

.... forests, crop yields, and water supplies. It could also threaten human health, and harm birds, fish, and many types of ecosystems." The threat to human health is due to local climate. The reason why local climate threatens human health is that "extreme temperatures can directly cause the loss of life". And also many serious diseases appear in warm places. But not only is it that "warm temperatures can increase air and water pollution, which in turn harm human health" (ESP Health 1). The hot temperature, which could be the most direct effect of climate change, causes the heat problem. Because their cardiovascular system has to work harder to keep the bod .....

.... agents can even cause death. They could be colorless, odorless, and tasteless. They can cause death really fast if a person inhales them or if they are splashed on bare skin. Chemical agents have not been used a lot in warfare since World War I ended in 1918. Other chemical agents do not cause death, but they could make a person unable to fight. Some of these are called blister agents, which cause big blisters on your skin. A blister agent called mustard gas caused a lot of deaths on both sides during World War I. Some other chemical agents can cause temporary blindness or mental confusion. But people still can defend themselves against all of these chemical a .....

.... similar to the hawk. Even though owls are not related to eagles, falcons, and vultures they have similar hunting habits and similar equipment for catching and killing - sharp, hooked beaks, and strong, sharp, curved toenails or talons. Owls are nocturnal for the most part and the others hunt during the day. Hawks evolved from raptors which also were birds of prey. Hawks evolved with eagles and falcons mainly but also with some other birds as well. Habitat and Biome Hawks live in all different habitats. Some in the foothills of the mountains while others live in the brushy open country and badlands of Oklahoma, Arizona, New Mexico, Nevada, an .....

.... When a group of cells function together to perform an activity, they form a tissue. The cells of a human are organized into tissues such as muscle and nerve tissues. Plant tissues include those of the stem and root. Many cells in tissues are linked to each other at contact sites called cell junctions. Cell junctions help maintain differences in the internal environment between adjacent cells, help anchor cells together, and allow cells to communicate with one another by passing small molecules from one cell to another. Groups of two or more tissues that function together make up organs. An organ system is a group of organs that work together to c .....

.... two membranes, the inner membrane and the outer membrane. The outer membrane is smooth and limits the organelle. It is highly permeable to small solutes such as molecules and ions, but it blocks off passages of proteins and other macromolecules. The inner membrane of the mitochondria is folded into shelf like structures called cristae. The cristae does not even allow the passage of small ions and so it maintains a closed space within the cell. The many infoldings of the cristae are responsible for providing the mitochondrion with a large surface area which enhances the productivity of respiration. The inner membrane and outer membrane effectively divide th .....

.... field worthy of serious attention? is the merging of two dissimilar metal hydrides. The process is exothermic, and can generate energy in one of two ways. Energy can be input in to a system and multiplied, or energy alone can be generated although in a much smaller amount. For example, one watt of energy can be input and 3 watts recovered. Some systems are capable of producing hundreds of watts per individual watt. The actual physics of the reaction is not completely understood. Some claim it is merely a chemical reaction not yet understood, while others are convinced it is a nuclear reaction. One example is a cell which used .04 grams of .....

.... leisure. (J Rifkin 1995 p.42) This paper will consider developments in technology, robotics, electronic miniaturisation, digitisation and information technology with its social implications for human values and the future of work. It will argue that we have entered post modernity or post Fordism, a new age technological revolution, which profoundly effects social structure and values. Some issues that will be addressed are: elimination of work in the traditional sense, longevity, early retirement, the elimination of cash, the restructuring of education, industry and a movement to global politics, economics and world government. In particular thi .....