Science & Technology Essays and Term Papers

defined as the sensation that one is in danger, that something bad is about to happen. Fear is almost always accompanied by a host of physical symptoms. When it is not justified by the presence of real danger or a threat, or by a rational cause,…

the United States these days. The definition for phobia is "an abnormal or morbid fear or aversion" ("Oxford" 655). To be considered a phobia, a fear must cause great distress or interfere with a person’s life in a major way. The word phobia is Greek,…

formation and liberation of electrically charged particles in matter, usually metals, when it is irradiated by light or other electromagnetic radiation. The term photoelectric effect designates several types of interactions. In the external photoelectric…

believe that the rationale of Robert E. Resh’s article is quite simple: He tries to establish the brief history of air bags in his audience’s minds. He commences his paper with the concept of an “old school” air bag. Resh enlightens us that the…

and green algae as well as terrestrial plants, which have evolved to support themselves outside of the aquatic environment of their ancestors. This SparkNote focuses on the terrestrial plants, which include bryophytes (mosses) as well as the more highly…

can be shaped into almost any form. They are one of the most useful materials ever created. Our homes, schools, and businesses are filled with plastic products. Imagine cars without synthetic bumpers, dashboards, steering wheels and switches; medicine…

in our everday usage. We use plastics everywhere ranging for Tupperware to the cars that we drive. Although most everyone has accepted the fact that plastics make our lives easier and has become essential to us, there are people out there who are…

Should we begin to manufacture one of the most destructive and infamous substances on the face on the Earth once again? The engineers say yes, but the public says no. The United States stopped making this element with the ban on manufacturing…

Should we begin to manufacture one of the most destructive and infamous substances on the face on the Earth once again? The engineers say yes, but the public says no. The United States stopped making this element with the ban on manufacturing…

of the Arctic. Lives in an area of five million square miles of snow and ice. From Siberia to Alaska and across Canada, Greenland and the Islands north of Norway, he is the master of all living things except man. It lives in the brutal cold, ice,…