Uranium-235

“Welcome to Hiroshima” was written by Mary Jo Salter in 1895. The poem was published 40 years after the United States dropped a nuclear bomb on Hiroshima. The bombing happened on August 6th, 1945 approximately at 8:15. The bombing of Hiroshima killed nearly 140,000 civilians, and it was tragic event that made outside which was the United States. However, the title expressed a sense of welcome for the Americans. It has also shown that people in Hiroshima are open minded about the tragic past, and…

nuclear fission. According to Roush (1995), over 30,000 metric tons of waste from the process of nuclear fission has been produced from commercial reactors in the United States as well as high level of nuclear weapons waste, such as plutonium and uranium. Due to the build-up of this nuclear waste, several power plants will need to be shut down in addition to preventing new power plants from being built. However, with increasing population of people in the United States…

living in the areas in which the plants were supposed to be built out of their homes and into other prescribed areas. Nearly twenty different sites were used to build various sites, the most important being Oak Ridges which produced the enriched uranium needed for a bomb and Los Alamos, where the atomic bombs used on Japan were…

Rare earths are very significant when it comes to the development and use of technical equipment as they can be very important to the performance of the unit. An example of an everyday piece of technology that uses rare earths is the IPhone. Apple has said that the IPhone uses eight rare earths, from everything from the colored screen, to speakers, to the miniature circuits inside the phone. Although the amount of rare earths in the phone is very little, the demand for rare earths will continue…

In this new era of 21th century, our world is surrounded by energy even our eating foods also having energy which is chemical energy. In physics, energy is defined as a property of objects which can be transferred to other objects or be converted into many different forms (encyclopedia 2016). Energy can be differentiated into two groups which is renewable energy and non-renewable energy. Renewable energy group is defined as the group of energy which can be replenished naturally in a short period…

Gustavo Oliveira Coutinho, 4º ano Class: 4BTEL Innovate Tesla: the resurgence of Nikola Tesla from oblivion to spotlight Introduction Nikola Tesla is one of the most controversial figures on science. While many judged him simply as a mad scientist, few were able to see how he was ahead of his own time, providing the theoretical and practical foundation to several modern equipments. We, as a society, not only owe Tesla for the AC (alternating current) electric system of supply, but…

Electron microscope (Manning, n.d.) is the instrument used to magnify different scientific artifacts with the used of electron beams to create the illustration of the sample, and has the capacity to magnify two million times of the original specimen. The development of the electron microscope was first known in the year 1931 because Ernst Ruska and Maximoll Knoll magnified electron image successfully, but the equipment was actually constructed in 1933 (Innes, n.d.). The concept of the electron…

The control rods are what give a steady output of energy after the fission process has taken place. They control the number of spare neutrons as a great amount are produced during a chain reaction with the nuclei. These control rods are usually made of the material cadmium or boran and they absorb excess nuclei in order the control the amount of free flowing neutrons so they do not become to excessive which would create larger amounts of heat. The rate that the energy is produced can be changed…

INTRODUCTION In the world 17% of the total electrical energy is generated by nuclear energy, but with the creation of nuclear energy produced many concerns for the surrounding environment. Nuclear waste is produced in different forms with different chemical and physical properties. This waste may be: • In the form of gas emitted from radioactive materials • In the form of liquid excreted from many research fields • In the form of solid ranging from glassware of hospitals and contaminated trash…

CHAPTER 3 HARDWARE REQUIREMENTS 3.1 GENERAL Enabling technology for a whole host of innovative devices and systems that have changed the way we live is the Integrated circuit(IC) Technology. In the year 2000 Jack Kilby and Robert Noyce received the Nobel Prize in Physics for their invention of the integrated circuit and without the integrated circuit, neither transistors nor computers would be as important as they are today. We know that VLSI systems are very smaller in size and consume…