Radioactive decay

the first three days all three cores largely melted (World Nuclear Association 2016). The tsunami flooded the Daiichi plant which disabled 12 out of the 13 back-up generators on site, disabled the heat exchangers for dumping reactor waste heat and decay heat to the sea which eventually caused the three units to lose the ability to sustain proper reactor cooling and water circulation functions (World Nuclear Association 2016). After two weeks, the three reactors (units 1-3) were stabilized with…

instructing in the chemistry department in 1939. In working with Emilio Segré in Berkley’s Radiation Lab, he and Seaborg collaborates on research into the isotopes of element 43. They discovered in return, an isotope that had an interesting radioactive decay pattern, emitting intense, short-lived gamma rays known as technetium 99. Technetium is now a major factor in nuclear medicine in its use of diagnostic imaging involving thyroid, bone, liver, spleen, lung, brain, kidney, and cardiovascular…

found in seawater, as a replacement to one of the hydrogens in the water molecule; it can be obtained through distillation of ocean water. Tritium, on the other hand, is a radioactive isotope, which means over time half of its mass is lost every half-life. A half life is simply the time it takes for exactly half of the element to decay into another form. One must have a way of generating tritium then. There are proposed reactions using Lithium-6 or Lithium-7 as a reaction on the outside of the…

My name is Han Jin-Su, and I was born in Pyongyang, Korea. I am writing to you, Dr. Reed, in order to inform you about who I am and my role serving the Democratic People's Republic of Korea (DPRK). I was born an orphan raised by my single father, Park Ho Sung. My father was a great general who worked for the Korean People's Army led by our former Supreme leader, Kim Jong-Il. Father recently passed away, but taught me well under strict rules. Without him, I would not be in the position I am today…

Renewable Energy By: Amr Farouk Teacher: Mirna Tayara Thesis Statement: Renewable energy is a great invention because it is cheaper and more environment-friendly than oil. Outline: • Introduction 1. Renewable energy’s most important advantage 2. People’s most common misconception about renewable energy 3. Non-renewable energy’s most important disadvantages • Kinds of renewable energy 1. Solar energy 2. Hydroelectric energy 3. Tidal energy 4. Hydro kinetic energy 5. Biomass energy 6.…

It is highly possible that the Trojan War occurred, given the extent of the evidence that exists to support it; however, due to the amount of time that has passed since its event, it is likely that some details have been changed. There are various written sources to support it, from Homer’s Iliad to Hittite cuneiform tablets. Equally, there is a large amount of archaeological evidence found both at Troy and other ancient sites, such as Mycenae. It seems unlikely that evidence of this quantity…

populations that are alive today. Radioisotope dating gauges the age of rocks and fossils by looking at the scale of isotopes in the rocks. Isotopes are separate forms of an atom that make up matter on earth. Some of the isotopes, the ones called radioactive isotopes, throw away particles over an amount of time and change into different particles. The fossil record of change in extinct species gives us an undeniable record of past changes through massive time periods. Some of the extinct…

deputy director of the Delaware Riverkeeper Network,she explains how the harmful toxins used in fracking get into people’s drinking water and land.”Fracking disturbs, distributes, and carries upward with the fracked gas ‘produced waters’ containing radioactive materials, heavy metals, hydrocarbons such as BTEX (benzene, toluene, ethylbenzene, and toluene), bromide, highly concentrated salts, and many other organic and inorganic compounds that, when exposed to our environment, are dangerous…

The Little Wanderer Take my love, take my land, take me where I cannot stand. I don’t care, I’m still free, you can’t take Pluto from me. Probably the most debated planet, Pluto was discovered in 1905 by Percival Lowell with predictions calculated through the orbits of Uranus and Neptune. However, Pluto was officially seen and declared as a planet in 1930 by Clyde Tombaugh through a telescope (“Pluto Discovered.”). It has only been recently that we have discovered more about Pluto as the…

Any unwanted change in physical, chemical or biological properties of the soil, which impacts humans and other organisms or the soil’s natural quality such as fertility and utility, is called soil pollution. Various factors, are considered to be responsible for soil pollution. According to scientists, soil pollution is identified as the damages done to the top soil of the land. Soil pollution is synonymous with the problem of disposal of solid waste. From a large perspective, it includes changes…