.... Down based this unfortunate name on his notion that these children looked like people from Mongolia, who were thought then to have an arrested development. This ethnic insult came under fire in the 1960s from Asian genetic researchers, and the term was dropped from scientific use. Instead, the condition became "Down's syndrome." In the 1970s, an American revision of scientific terms changed it simply to "Down syndrome," while it still is called "Down's" in Europe. In the first part of the twentieth century, there was much speculation of the cause of Down syndrome. The first people to speculate that it might be due to chromosomal abnormalities were Waarden ....

.... we may end up looking back nostalgically on the late twentieth century as a time of health and tranquility. As we show you, in the world of viruses, we are the invaders (Baddorf, Ourworld.compuserve.com)." Between the years of 425BC-430BC Athens' population was dramatically reduced when about 300,00 of its inhabitants died from some sickness. Some people now believe that this great plague was really Ebola. The first recorded outbreak of the Zaire string of the Ebola virus was in Zaire, in 1976. The doctors didn't know how to treat it and that meant that they didn't know how to contain it either. As infected people met in public places the virus spread. In We ....

.... off by vehicles and factories, as well as by industrial and domestic heating and cooling units. At night, the solar energy, which is stored as vast quantities of heat in city buildings and roads, is released slowly into the city. The dissipation of heat energy is slowed and even stopped by the tall building walls that do not allow infrared radiation to escape as readily as do the relative level surfaces of the surrounding countryside. The slow release of heat tends to keep city temperatures higher than those of the unpaved faster cooling areas. On clear, still nights when the heat island is pronounced, a small thermal low- pressure area forms over the city. Sometimes ....

.... the humble and ubiquitous copper wires that run throughout the world to provide POTS (plain old telephone service), the capacity to send enormous volumes of data at very high speeds. With , it's not just a phone line, it's a lifestyle. Some s do that in parallel with the standard voice service, all on the same line and at the same time. Some deliver higher speeds or wider bandwidth - the more dense the data you are sending, the wider the bandwidth you need for quality and speedy transmission. Still others deliver higher capacity for downloading than for uploading data. There is a whole portfolio of technologies coming on stream to match user needs at home and at work. The ne ....

.... so they bump into one another more, therefore speeding up the reaction time. This is called the collision theory, which I will discuss in greater depth later.  Whether or not there is a catalyst. A catalyst speeds up the rate of reaction and remains chemically unchanged by the end of the experiment. A catalyst lowers the activation energy. This is the energy needed to start a reaction. The variable that I have decided to change is the temperature. I have decided to alter the temperature of the yeast and time the amount of carbon dioxide that will be given off at different temperatures. I have decided to time how much carbon dioxide is given off in five minu ....

.... of light reflected from it. Your two eyes each see a slightly different view of the apple. These different views tell you about the apple's depth -its form and where it sits in relation to other objects. Your brain processes this information so that you see the apple, and the rest of the world, in 3-D. You can look around objects, too -if the apple is blocking the view of an orange behind it, you can just move your head to one side. The apple seems to "move" out of the way so you can see the orange or even the back of the apple. If that seems a bit obvious, just try looking behind something in a regular photograph! You can't, because the photograph can't reproduce the ....

.... you're covered completely with this mysterious black substance. 11 million gallons of this black substance is everywhere and it is continuing to spread and spread. You see thousands of other birds with the same problem. You try to fly, but your wings are too heavy. You flap and flap but it is hopeless. Sinking to the bottom of the beautiful waters, you wonder what that sticky black killer was. It's simple. It's crude. It's oil. This scenario is nothing but a harsh reality that most people were unconcerned about until the disaster of the Exxon Valdez. The Valdez spill, tragically unnecessary though it was, has served as a laboratory for scientists, in which they can ....

.... into the constant changing of what a person needs to be an active member of a community we notice the continuos alteration of what exactly defines a comfort a necessity and a luxury. Comfort by definition is a condition of pleasurable ease or well being. By that definition there are endless numbers of object that could serve as a comfort. Take public transportation for example. The thought of having the train that takes us into the city is a commonly know option. Not always have people been able to choose public transportation as a method of getting to and from. Dating as far back as 1889 when the first method of public transportation was developed in Massachusett ....