.... They will burn, but not explode unless confined. Examples are black powder and pellet powder, safety fuses, igniters, igniter cord, fuse lighters, Class B special fireworks, and Class B composite solids propellants. Class C explosives are common fireworks. Note that short lengths of Primacord may be classified as Class C under certain conditions. Both Class B and C explosives are also called low explosives. All pyrotechnic materials and other explosives consist of an oxidizer (source of oxygen) and a reducer (fuel). Examples of oxidizers include potassium nitrate, .....

.... and they develop lungs and legs. This period of tadpole life can be divided into three stages. The first stage, called “ premetamorphosis,” lasts about 50 days (Patent 54). The second stage, in which the hind legs grow, is called “prometamorphosis,” and lasts about 21 days. When the legs are about as long as the body, the third stage, which is called “ metamorphic climax,” and takes place very rapidly, begins. During this last stage, which lasts about a week, many great changes occur. They lungs complete their development, and the gills disappear. The skin gets thi .....

.... breakthroughs because of principles of physics. Doctors are now able to use lasers for surgery. Lasers are based on the physical principle of light, and are devices for the creation and amplification of a narrow, intense beam of coherent light. New laser microsurgery can actually alter the shape of the cornea in the eye so the patient's eyesight can return to normal, and he/she will no longer need those bothersome glasses. Ultrasound is used in the medical field for destroying various unwanted substances in the body such as kidney stones. Ultrasound uses sound waves to d .....

.... locusts, darkness, and the slaying of the first born. Even though this type of warfare may have had origins as early as Exodus, the methods of making these germs is described in scientific literature and is no secret to terrorists. This germ warfare is an especially serious threat for several different reasons. The first reason is the ability of these germ agents to be undetectable to spy technology. Secondly, the warfare labs that are used to produce these germs are difficult to detect, and major nations sometimes work together collectively to produce these agents for use .....

.... a situation that you have resolved or fixed within a group. This illustrates your ability to be a team player, which is an important skill to possess in every job. All these three qualities can differentiate who you are, and that is the stepping stone of becoming a part of a company like Apple. Whipfler also gave reasons of why he chose to work for Apple. There are two main reasons why he was so attracted to Apple. First of all, Apple is a multinational company that is interesting. Secondly, the cultural icon attracted him as well. He believed that everywhere he travel .....

.... is a form of life-support on spacecrafts, helping astronomers' hearts pump while they are outside of the Earth's atmosphere. It is used, on Earth, for those who's hearts have problems with pumping blood. Pens that write upside-down are used in space, where there is no gravity and writing with pens would otherwise be impossible. They are convenient tools on Earth when we are trying to write on vertical surfaces. A zero-gravity training system is used to help astronauts become more comfortable with the conditions in space. It is used in places such as Sportsland, for .....

.... identical to each other. For example, in May of 1998, scientists successfully cloned a calf using a new cloning technology that could make it possible to create "designer" cattle. Also, in June of 1998, there was talk about having successfully cloned a mouse swept through the scientific community(Nash 3). These are just a few of many times scientists have cloned an animal. These are the many things science has brought fourth and we need to take advantage of them. After studying both sides of the issue, I believe human cloning is a good thing to peruse for our childre .....

.... unfrozen which causes the dust particles to become free. Light pressure from the sun and some other forces cause these materials to move away from the head of the comet and in the opposite direction from the sun. According to Charles A. Schweighauser in his book, entitled Astronomy from A to Z: A Dictionary of Celestial Objects and Ideas, he states that we see comet heads and tails because they not only reflect sunlight, but they also fluoresce—give off their own light—when are near the sun. The tails from the comet may be up to 150 million kilometers long each or togeth .....