Edmund Kemper Essays - Edmund Kemper, Necrophiles, Kemper

Edmund Kemper On May 7, 1972 Edmund Kemper began his series of murders. His first two victims were both students at Fresno State College. They were hitchhiking to Stanford University, but they made the tragic mistake of excepting a ride from Kemper. After driving them around for while, he pulled into a remote deserted area. He forced Anita Luchese into the trunk of the car, and turned his attention to his first victim Mary Ann Pesce. He put in the back seat face down, and placed a plastic bag over her head. He then attempted to try to strangle her with a piece of cloth. But, his efforts were not successful at first, because even though she was handcuffed, she was able to bite a hole in the bag and to make Kemper even angrier the cloth broke. By this time Kemper became extremely frustrated with his efforts. He then proceeded to pull a knife and repeatedly stabbed Mary Ann, and eventually slashed her throat. Anita's death was much quicker, after Kemper removed her from the trunk he stabbed her with a different and larger knife. She fought and screamed for little bit, but finally wore down, and she to died a senseless death. Afterward, Kemper drove around for a while with the bodies still in his car, while trying to decide what to do with the bodies. He eventually brought Anita's body into his apartment, where he undressed her and dissected her body. He then beheaded both women's bodies. Kemper disposed of Mary Ann's body in the plastic bag he tried to suffocate her with, and buried her body. Kemper later lead the police to the location of her body. He kept their heads for a while before dumping them into a ravine. Anita's remains were never found. Kemper drew no suspicion from these two murders, so he continued to prowl. On September 14, 1972, he picked up Aiko Koo, a fifteen-year-old dancer of Korean descent. She was on her way to dance class when she became tired of waiting for the bus and decide to hitchhike. Like his first two victims Aiko made the fatal mistake of hitching a ride with Edmund Kemper. Aiko figured Kemper's plan out and began to panic. Kemper was able to convince her that he was going to shoot himself, and if she did not try to signal the police she would not be harmed. He then drove the two of them into the mountains and turned the car off of the main road. He tried to suffocate her by taping her mouth shut and sticking his fingers in her nostrils. But this did not kill her, it only rendered her unconscious and she awoke moments later. Kemper then began to suffocate her again, and this time he did not stop until she ceased to breathe completely. He then pulled her out of the car and raped her limp body. He proceeded to strangle her with her own scarf, and when he was positive she was dead he placed her body in the trunk and drove away from the scene. From there, he left for his mother's house, but not before stopping at a local bar for a couple of beers. Periodically he would open the trunk and admire his great conquest. Later that night he took Aiko's body into his apartment and placed it on his bed. He then dissected her body as he had done to Mary Ann and Anita, and disposed of her head and hands in a different location than the rest of her body. Very few parts of her remains were ever found, and her disappearance was not thought to be associated with that of Mary Ann and Anita. Four months had gone by. Victims of other murderers had turned up, but still Kemper drew no suspicion. Even though Kemper was legally aloud to buy a gun do to a prior crime, he had no problem purchasing a .22 caliber handgun. But he feared that the police would find out about the gun, and that lead him to step up his killing activities beginning that very day. He picked up a woman named Cindy and drove her into the hills near Watsonville, where he placed her into the trunk and shot her with his brand new gun. Edmund brought the body to his mother's apartment in Aptos where had recently moved back in. He waited for his mother Clarnell to leave for work the next morning, and then he had sex with

Nichrome and constantan Essays

Nichrome and constantan Essays Nichrome and constantan Paper Nichrome and constantan Paper Resistance- Resistance is a force which opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit. Resistance is measured in ohms. During this experiment I aim to research and plan an experiment to investigate a factor that affects the resistance in a piece of wire. The possible factors I could change in this investigation are: 1 Length of the wire, 2 Thickness of the wire, 3 Type of metal- Copper, Nichrome and constantan 4 Shape of the wire, 5 Temperature of the wire,6 Density of the metal. I have chosen to investigate the length of the wire because length is a continuous variable with a continuous range so I will be able to choose any lengths to investigate. I chose not to investigate thickness because although it is a continuous variable the wires available to me only come in set thickness that do not go up in regular intervals. I chose not to investigate type of metal because it is not a continuous variable so I would not be able to evaluate the investigation by linking two or more groups of data on a graph. I chose not to investigate the shape of the metal because it isnt a continuous range. I could only use two options bent or straight. I chose not to investigate the temperature because although it is a continuous range it is very difficult to maintain a temperature, as you couldnt use a water bath because of safety aspects. It is also difficult to measure the temperature of a piece of wire. I chose not to investigate the density of the metal because although it is a continuous variable I only have one set density available to me. Prediction A longer piece of wire has a higher resistance because in a longer piece of wire there are more collisions between the electrons and the metal ions so there will be more successful collisions. In every successful collision energy is lost from the electron to the wire ions. The result is the voltage of the wire increases. The equation for resistance is resistance = voltage / current and as the current stays the same in the circuit and the voltage increases, the resistance increases. 10cm 20cm Preliminary Plan. The aim of my preliminary work is to decide whether to use wire copper, constantan or Nichrome I will use and what thickness of either 32SWG, 38SWG or 26 SWG. I will need to use a wire with large resistance range that is a good conductor of electricity. The wire must not overheat easily. The apparatus I will need to perform the preliminary experiment will be:   Power pack (2volts) Ammeter   Voltmeter   Wires x 6   Crocodile clips x 2   Meter rule   Masking tape   Board marker Factors to control in preliminary experiment The independent variable will be:   The amount of resistance in different lengths of wire. The variables that I will keep the same will be:   Material of wire-either Copper, Constantan or Nichrome.   Density of wire   Temperature of wire   Shape of wire- straight Voltage- constant voltage of 2 volts. Circuit diagram for preliminary experiment Method 1 Set up the circuit as shown above with the power pack set at a constant voltage of 2 volts. 2 I will use 2 different lengths of wire in my preliminary, the largest 100cm and the smallest 10cm so I can find the material with the largest resistance range. Now 1 will make sure the power pack is off and insert the first wire at point x on the circuit diagram. Now I will turn on the voltmeter and ammeter. 3 Next I will turn on power pack and record the first ammeter and voltmeter readings. The results may change due to heating so I must record the very first results shown. 4 Switch off the power pack and insert next wire. 5 Now repeat the experiment using the different wires and thicknesses and recording each result. Preliminary results These results show me the resistance ranges for copper, Nichrome and constantan. Material Length/ cm Voltage/Volts Current/Amperes Resistance/? CopperConstantan . Copper resistance range = 0. 3 ? Nichrome resistance range = 15. 03 ? Constantan resistance range = 7. 42 ? These results show me the resistance ranges for copper, Nichrome and constantan in 3 different thicknesses of 26 SWG, 28 SWG and 32 SWG. Wire Width (swg) Length (cm) Voltage (Volts) Current (Amps) Resistance Nichrome 28 SWG = 13. 93 ? Nichrome 32 SWG = 16. 2 ? Constantan 26 SWG = 2. 75 ? Constantan 28 SWG = 3.97 ? Constantan 32 SWG = 7. 34 ? Preliminary Conclusion From my preliminary experiment I found that the material with the highest resistance range is Nichrome in a thickness of 32 SWG. Even though my results may not be very accurate because I did not take repeat readings and find an average, Nichrome 32 SWG had a much larger resistance range than the other materials and thicknesses. Nichrome had a resistance range of 15. 03 ? , Constantan had the second largest resistance range but was still only 7. 42 ?. Predicted results I have used resistivity to predict my resistance results in my final experiment.

Operation Systems Research Paper Example | Topics and Well Written Essays - 1250 words

Operation Systems - Research Paper Example Basically, it functions like most OS’s—it processes, stores, and transfers data. Probably the reason why UNIX is no longer so popular these days is that it was developed a long time ago: 1969, years before the development of the Internet, the network system which made computers a virtual companion to daily life. It was developed that year when a group of Bell Labs programmers decided that they needed an OS that is fast, easy-to-use, and versatile (Wagner 8). UNIX is significant in the history of information technology because developers of the Internet used it in making their communications system (Williams and Sawyer 150). Williams and Sawyer note that several programs were developed from UNIX. Among them are Solaris (from Sun Microsystem) and BSD (developed by students from University of California, Berkeley) (150). DOS is often fondly called â€Å"the old-timer† (Williams and Sawyer 147). DOS, which stands for disk operating system, was initially developed by Microsoft in 1982. Although it is difficult to use, it became a popular operating system because of the popularity of Microsoft computers (Williams and Sawyer 147). DOS was the main operating system for Microsoft before Windows (â€Å"What is DOS?†). Its quick decline in popularity after the introduction of Windows can be attributed to its simplicity and incapability for multitasks. It is still, however, present in the current Windows operating systems and can be used to control both software and hardware. Before it became irrelevant to desktop computing, MS-DOS was a successful OS (though some argue that it is, technically, not an OS). It had 17 versions in all, the last released in 1997 as MS-DOS 7.1 (â€Å"MS-DOS History†). Users can perform a number of computer tasks by entering commands on the MS-DOS command prompt available in the Windows OS. Among these commands are comp, for comparing files; deltree