.... could US authorities talk to each other in the aftermath of a nuclear attack? Communication networks of that time were chained point-to-point, with each place on the network dependent on the link before it. If one point in the network were blown up, the whole network would become useless. Paul Baran, one of the Rand thinkers on the project, conceived the idea for a new kind of communications network that wasn't organized point-to-point, but instead was set up more like a fishnet. He believed this structure could allow information to find its own path through the network even if a section had been destroyed. His eleven-volume report for the P .....

.... of the computer? Physical hazard is one of the causes of destroying the data in the computer. For example, send a flood of coffee toward a personal computer. The hard disk of the computer could be endangered by the flood of coffee. Besides, human caretaker of computer system can cause as much as harm as any physical hazard. For example, a cashier in a bank can transfer some money from one of his customer's account to his own account. Nonetheless, the most dangerous thief are not those who work with computer every day, but youthful amateurs who experiment at night --- the hackers. The term "hacker "may have origina .....

.... dirigere, "to direct, to steer") balloons. Equipped with a bag containing a gas such as helium or hydrogen which is elongated or streamlined to enable easy passage through the air, these Airships could reach speeds up to 10mph with a 5hp steam engine propeller. The first successful airship was that of the French engineer and inventor Henri Giffard, who constructed in 1852 a cigar-shaped, non-rigid gas bag 44 m (143 ft) long, driven by a screw propeller rotated by a 2.2-kw (3-hp) steam engine. He flew over Paris at a speed of about 10 km/hr (about 6 mph). Giffard's airship could be steered only in calm or nearly calm weather. The first .....

.... its users, but there are also many problems with the Internet security, especially when dealing with personal security, business security, and the government involvement to protect the users. The Internet is a new, barely regulated frontier, and there are many reasons to be concerned with security. The same features that make the Internet so appealing such as interactivity, versatile communication, and customizability also make it an ideal way for someone to keep a careful watch on the user without them being aware of it (Lemmons 1). It may not seem like it but it is completely possible to build a personal profile on someone just by t .....

.... made of wheels and cogs. The concept of the modern computer was first outlined in 1833 by the British mathematician Charles Babbage. His design of an analytical engine contained all of the necessary components of a modern computer: input devices, a memory, a control unit, and output devices. Most of the actions of the analytical engine were to be done through the use of punched cards. Even though Babbage worked on the analytical engine for nearly 40 years, he never actually made a working machine. In 1889 Herman Hollerith, an American inventor, patented a calculating machine that counted, collated, and sorted information stored on punch .....

.... minor success only to be countered by the allied Foxer noise-making decoy. It was scoring hits against escort and merchants to the end of the war though. The weapon was designed to lock onto the loudest noise after a run of 400m from its launch. This often proved to be the U-boat itself and standard issue-orders were to dive immediately to depth of 60m after launch from a bow tube while a stern shot was to be followed by a complete silence in the boat. Two U-boats were almost certainly lost when hit by one of their own T5 torpedoes, U-972 in Dec 1943 and U-377 in Jan 1944. Variants All the German U-boat torpedoes were 53.3cm (21 inch) .....

.... private nature on anything from IRS Tax returns, to Top Secret NASA payload launch information. Piled on top of that many times the individuals accessing these information sources are doing so by illegal means and are often motivated by deviant and illegal means. It is said that at any given time the average American has his name on an active file in over 550 computer information databases of which nearly 90% are online, and of the 550 databases the number comes no where close to how many time your personal information is listed in some database in an unactive file. The "Average American" could simply sit in his/her home doing nearly not .....

.... archival and retrieval medium, somewhat analogous to traditional libraries. 4. The world-wide web (WWW), which is another component of the Net, can be used to "publish" material that would traditionally appear in journals, magazines, posters, books, television and even on film. 2. It is also essential to give a brief history on the internet. 3.The U.S. government is now trying to pass bills to prevent misuse of the Net. II. In order to understand the need for the ever-growing body of legislation, it is important to explore the controversy, and the current problems involved with the Net as it exists must be introduced. 1. The probl .....

.... for many with visions of fancy headgear and million dollar gloves, MUDs require no such hardware. They are, however, a form of virtual reality, "because they construct enduring places, objects, and user identities. These objects have characteristics that define and constrain how users can interact with them," (Holmes & Dishman, 1994, p. 6). Having been created in their most rudimentary form nearly two decades ago, the technology that supports MUD interaction is well developed and has spawned a new variety of communicative environment, one that thousands if not millions of users have found fiercely compelling. Since MUDs are generally restr .....

.... the atmosphere. Coal power is also reliable. Solar Solar should only generate 15% because it is not a reliable power source: the sun does not shine 24 hours a day, 7 days a week in one spot. If the weather does change and the panels can’t generate the power required the nuclear plant/s can fluctuate to cope with the power needs of the general population. Solar power uses an infinite resource so it is worthwhile making use of. Wind Wind “farms� should be used in conjunction with Solar plants as more power will be generated with the wind and sun combined. It is an environmentally friendly power source however it is very costly .....