SCIENTIFIC ADVANCEMENT IS A BOON OR BANE INTRODUCTION Science offers knowledge based on experiment and observation‚ but technologyis the total sum of the application of knowledge. This has made life easy and comfortablefor the user. A country said to be a developed country when it has many technicaladvancements. A small country like japan has succeeded to acquire this prestige becauseof its advancements and applications of technology at a high level. This century is the ageof Science. We cannot
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radio waves‚ extremely low frequency waves etc. are all packed in the radiation that emanates from the sun. From time immemorial human race knew that the ultimate source of energy for the earth is from the sun. Modern science has established that this energy is quantifiable‚ for better understanding‚ as electromagnetic radiation‚ EMR. Radiations
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light is best described by a wave model‚ but understanding emission and absorption requires a particle approach. The fundamental sources of all electromagnetic radiation are electric charges in accelerated motion. All bodies emit electromagnetic radiation as a result of thermal motion of their molecules; this radiation‚ called thermal radiation‚ is a mixture of different wavelengths. At sufficiently high temperatures‚ all matter emits enough visible light to be self-luminous; a very hot body appears
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down scans are taken. These scans are taken by all angles and depending on the picture the size of the camera is also chosen. The camera can also move around the body of the patient. The machine doesn’t produce any sound or transmit any harmful radiations. What kind of diseases can be diagnosed by nuclear medicine? Nuclear medicine can diagnose a wide range of diseases. It can be used to diagnose abnormal lesions deep in the body without exploratory surgery. The procedure can also determine whether
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References: 1. United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) (2000) Sources and effects of ionizing 2. Lee MH‚ Lee CW (1999) Determination of 137Cs‚ 90Sr and fallout Pu in the volcanic soil of Korea 4. UNSCEAR (1988) United Nations scientific committee on the effects of atomic radiation sources and effects of ionizing radiation. 6. Currie LA (1968) Limits for qualitative detection and quantitative determination 7. Al-Masri MS‚ Amin
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but one specific scientific advance that I will be discussing is the discovery of physics through X-rays and radiation‚ which was discovered by Wilhelm Röntgen. After he published a paper on his discovery of X-rays in 1895‚ there was great study and research done by physicists such as: Antonie Henri Becquerel‚ Marie Curie‚ and Ernest Rutherford on radioactivity and the formation of radiation through x-rays. Although Wilhelm was credited for the naming of x-rays and creating the first working x-ray
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the person and the amount of radiation exposed. • Pituitary axis Illnesses treated with radiation in areas containing the pituitary gland usually have a defect in the pituitary axis. The amount of damage of the total dose may be low as the one used to treat children with acute leukemia (18-40Gy) or many as 60Gy to treat a range of cancers such as pituitary tumors‚ nose‚ pharynx‚ and skull tumors‚ as well as dose size‚ Time for treatment. The higher the dose of radiation on the axis of the pituitary
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Fresh Fruits Irradiation for Phytosanitary Purposes in Thailand using a Multipurpose Irradiation Facility Suwit Tunlayadechanont Synergy Health (Thailand) Ltd. 700/465 Amata Nakorn Industrial Moo 7 Tambol Donhuaroh‚ Amphur Muang Chonburi‚ Chonburi 20000 Thailand Keywords: gamma irradiation‚ phytosanitary treatment‚ pest management Abstract Thailand reached an agreement with the USA for the commercial irradiationof six types of exotic fresh fruits‚ mango‚ mangosteen‚ longan‚ rambutan‚ lychee‚ and
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chemistry is known as today. Taken from the encyclopedia‚ commonly known as Wikipedia‚ is the origins of this fascinating type of chemistry. After the discovery of X-rays by Wilhelm Röntgen‚ a French chemist Henri Becquerel began to work on ionizing radiation and investigated the relationship between phosphorescence and the blackening of photographic plates. See the “Discovery of Radioactivity” article’s diagram below at end of paragraph. Becquerel discovered that‚ with
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Write your name here Surname Other names Centre Number Candidate Number Edexcel GCSE Physics/Science Unit P1: Universal Physics Higher Tier Friday 2 March 2012 – Morning Time: 1 hour You must have: Calculator‚ ruler Paper Reference 5PH1H/01 Total Marks Instructions black ink or • Usein the boxesball-point pen. page with your name‚ at the top of this • Fill number and candidate number. centre all • Answer thequestions. in the spaces provided questions
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