Detrital-zircon geochronology is an up and coming method to provide information on sedimentary rock provenance. Zircon is used for this method because of its resilience against chemical and physical weathering; in other words zircon is an indicator that is ubiquitous within sedimentary rocks. Zircon also tends to concentrate uranium and thorium (to a lesser extent) and excludes lead. Two parallel uranium-lead decay routes exist‚ 238U to 206Pb with a half-life of 4.47 billion years and 235U to 207Pb
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Nuclear Warfare Hiroshima‚ the first time nuclear bomb was used in war. On August 6‚ 1945 Hiroshima was attacked by the united states using a nuclear bomb named “Little Boy”. The attack on Hiroshima killed 20‚000+ soldiers and 70‚000-146‚000 civilians. “Little Boy” was detonated at 500 meters above the ground because it would spread further with radiation and cause more damage to structures and people. Nagasaki‚ August 9‚ 1945 bomb two. “Fat Man”was detonated over Nagasaki and killed up to 80
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The year was 1946. World War II had just ended and creative geniuses were working still to create new things that could be used if tensions between countries heated up again. Self-taught engineer‚ Dr. Perry Spencer‚ was an employee with Raytheon Corporation. Raytheon Corporation was and still is a major US defense contractor and industrial corporation (Communications). Dr. Spencer and colleagues were testing out a new wartime invention‚ the magnetron. The magnetron was originally created in order
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My element is Mercury‚the atomic number is 80 and the atomic mass is 200.59.The symbol is Hg.Mercury comes from the greek name hydrargyrum which means liquid silver.The element is also known as quicksilver for its mobility. Named after the fastest-moving planet in the solar system‚ mercury has been known to humanity for ages.despite its toxic qualities‚ mercury can still be useful to us. The element conducts electricity and is used in electrical switches of thermostats and certain types of doze alarm-type
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Uranium (U) is a metallic‚ silver-gray element that is a member of the actinide series. It is the principle fuel for nuclear reactors‚ but it also is utilized in the production of nuclear weapons. Because uranium is radioactive‚ it is constantly emitting particles and changing into other elements‚ like thorium. Uranium has a well-established radioactive decay chain. U-238 and U-235 (which has 143 neutrons) are the most common isotopes of uranium. Uranium naturally includes all three isotopes (U-238
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Fukushima disaster Japan is one of the most affected countries by natural disasters because of it’s geographical placement on the tectonic plates. In 2011 Japan was impacted by a monumental earthquake that caused a tsunami. This provoked the nuclear plant Fukushima Daiichi to leak radioactive material into the farm lands of Japan. Fukushima was overheating due to equipment failure‚ and loss of coolant agent. This was the result of a nuclear meltdown. It was rapidly shut down to prevent any further
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The possibility that a bomb made with uranium could be created was considered in 1939‚ when WW2 broke out in Europe Two Hungarian physicists Leo Szilard and Eugene Wigner‚ alerted the US government to the possibility of an atomic bomb. President Roosevelt then set up a program to study uranium and the possibility of an atomic bomb. This started the series of events leading to the atomic bomb. American scientists‚ under this committee discovered that uranium-235(U-235)‚ the type used in the atomic
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Simarpreet Singh Prof. Glichelle Pereyra ENG 099 11 March 2016 Power Sources As we all know Earth is considered
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Nuclear Bombs August 6th‚ 1945‚ the US drops the first nuclear bomb in combat over the city of Hiroshima‚ in Japan. This date is a huge part in our history because no weapon of such mass destruction has ever been used in combat like this. Three days later another nuclear bomb is dropped over Nagasaki‚ as soon as the bomb detonated around 80‚000 people died almost instantly showing the sheer power the bomb. A nuclear bomb has never been used in combat since then‚ but nuclear development has created
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Jonathan Li Mrs. Rankin English 113 9-28-12 Nuclear Power: Good or Evil? According to the Organization for Economic Co-operation and Development‚ 9000-33000 innocent people died as a result of the Chernobyl nuclear meltdown in Russia in 1986- the deadliest nuclear accident to date! Since the inception of nuclear energy‚ a sense of danger has always been inherent due to the extremely radioactive nature of uranium which if emitted‚ hangs over the land as the fog cloaks the English moors. When
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