.... over the modes. These agencies focus on maintaining and improving safety of each system. The individual states also have certain obligations to the operation and regulation of the different modes of transportation. Each mode is made up of primary subsystems. The subsystems of railroad transportation include freight trains and passenger trains. Freight trains are used to transport goods and materials between cities while passenger trains are used to transport people. Although freight trains are still used all across the nation, rail intercity freight has accounted for a decreasing share of the total ton mileage over the past 30 years. Thi .....

.... means of ignition, two types of internal-combustion reciprocating engines can be distinguished: spark-ignition engines and compression-ignition engines. In the former, a spark ignites a combustible mixture of air and fuel; in the latter, high compression raises the temperature of the air in the chamber and ignites the injected fuel without a spark. The diesel engine is a compression-ignition engine. This article emphasizes the spark-ignition engine. The invention and early development of internal-combustion engines are usually credited to three Germans. Nikolaus Otto patented and built (1876) the first such engine; Karl Benz built the first au .....

.... can do your taxes, surf the Web, write letters, e-mail friends, play games, plan a business, buy a car, do your homework... in fact, do whatever you want. The PC has given the average American the kind of computing power that 10 years ago was found only in large corporations. Yet people now take this for granted -- and want more. They want to do many of the things they can do on their PC regardless of where they are or what device they are using -- whether it's a palm-size computer, a Web-enabled cell phone, an Auto PC or a smart television like WebTV. A combination of sophisticated software, powerful microprocessors, wireless technology and high-ba .....

.... need to enjoy repetition in order to learn. The deliberate and frequent repetition used in the Interactive doll reassures, comforts and delights a child and sets an effective stage for learning. ' liberal use of repetition, large movement, bright colors, and deliberate pace nurtures and reinforces the development of children's listening and thinking skills. The pacing and repetition of encourages children to practice fundamental skills and concepts again and again. Successfully anticipating what comes next-predicting-is an important aspect of building a sense of "I can do it!" Children are more engaged in which they can see themselves, eith .....

.... of the Chicago-area-based Phillip's 1-800-FLORALS, and he faces a steeper incline all the time. "The Internet is like a huge mall in the middle of the Sahara desert," Phillip says. "Once you get there, which is the first hurdle, all the competitors are lined up together, one next to the other. So where do you go? You gravitate towards the brand names you already know -- the biggies." While Web site affordability has made it easier for companies like Phillip's to establish an Internet presence, the same is true for his competitors. Hence, a glut of small to medium-sized florists camp out on the Internet and fight to draw consumer attention to themsel .....

.... we know of, there are also top secret programs probably going on right now. A new fighter that has never been heard of before has been spotted. As John Welch, the assistant secretary of Air Force said, "Stealth gives us back that fundamental element of war called surprise" (Goodall 9). After it was found that aircraft could be very useful in war, it was used for large scale reconnaissance. Then people started to add bombs to aircraft and then airplanes started to become an essence of war. After World War 2, new bombers were developed with fast speed, and could travel far distances. They could also carry nuclear bombs and missiles. The use of the bom .....

.... the industrialized world indicates that the modernized nations of the world are prosperous, and have a high standard of living. The skinny, poorly dressed individual holding the developing world indicates that the developing nations of the world are not prosperous, and have a lower standard of living than do industrialized nations. Both individuals are supporting each other in such a way that if one is removed, the other will fall. Without resources to use, industry would not be able to maintain its existence. Likewise, without a market for their resources, or the products of industry, the developing world would not be able to maintain its exi .....

.... (Grolier, Inc.). The first amendment states that Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances. In no way does violate the first amendment. prevents broadcasters from infringing on the rights of the viewers. has really been limited to obscenity and gratuitous violence or nudity because people in the media have policed themselves pretty harshly. The most prominent law established due to is the Children’s Tele .....

.... electrodes, with one consisting of a thin diaphragm that moves by pressure from sound waves and transmits them to the carbon granules. These electrodes conduct electricity flowing through the carbon. The sound waves hit the diaphragm causing the electrical resistance of the carbon to vary. The electret transmitter is composed of a thin disk of metal-coated plastic held above a thicker, hollow metal disk. This plastic disk is electrically charged, and creates an electric field. The sound waves from the caller's voice cause the plastic disk to vibrate, changing the distance between the disks, thus changing the intensity of the electric field. These .....

.... to buy a PCI Ethernet card. If you have a 486 or slower you want to buy an ISA Ethernet card. At the bookstore, they sell a Kingston ISA Ethernet card for $19.95 and a D-Link PCI Ethernet card for $26.95. Now comes the frustrating yet simple task of putting the card in the computer. Make sure you unplug the power supply cord from the back of the computer. Every computer opens in its own unique way. Most will have screws in the back that hold the case cover. Unscrew them and slide the case off. Some might have to be tugged and pulled roughly, but don’t worry, it will come off. Which slot is for your card? I told you earlier that things .....