Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic transition metal‚ it has historically been sometimes classified as a rare earth element‚ together with yttrium and the lanthanoids. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia. Scandium is present in most of the deposits of rare earth and uranium compounds‚ but it is extracted from these ores in only a few mines worldwide. Because of the low availability
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Problem-based learning (PBL) is a student-centered pedagogy in which students learn about a subject through the experience of problem solving. Students learn both thinking strategies and domain knowledge. The PBL format originated from the medical school of thought‚ and is now used in other schools of thought too. The goals of PBL are to help the students develop flexible knowledge‚ effective problem solving skills‚ self-directed learning‚ effective collaboration skills and intrinsic motivation.
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electrons. The spectra of the two elements are what side of the energy spectrum their wavelengths are on. Materials: • Hydrogen lamp • Mercury lamp • 2 diffraction devices • Flashlight • Paper • Pencil • Calculator Procedure: 1. Place the hydrogen lamp in the power source and turn it on 2. Do the same thing with the mercury lamp on a separate table 3. Look through the diffraction device and look at several colorful lines 4. Record the colors of the lines
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ORGANIZATION STUDY OF VENTURE LIGHTING INDIA LTD Report Submitted to MAHATMA GANDHI UNIVERSITY‚ KOTTAYAM In partial fulfillment of the requirement for the award Of MASTERS DEGREE IN BUSINESS ADMINISTRATION (2008 – 10) By NIBU JOHN THOMAS Register No -551 RAJAGIRI COLLEGE OF SOCIAL SCIENCES RAJAGIRI VALLEY‚ KOCHI – 682 039 EVALUATION OF TRAINING DECLARATION I‚ Nibu John Thomas‚ Student of Rajagiri School of Management‚ Kochi‚ hereby declare that the organizational internship
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wavelengths of light on the rate of photosynthesis Introduction This experiment was performed to investigate the effects of different wavelengths of light on the rate of photosynthesis. If a multiple colored film petri dishes are place under a 50 watt lamp‚ then the rate of photosynthesis will be greater for those with red‚ blue and clear film‚ than those with green and black film. We believed the petri dishes with the red‚ blue and clear film would produce the best results of photosynthesis as compared
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spirit lamp‚ weighing balance‚ wooden block‚ wind shield [ K1PP1(iii) - Able to list all the materials and apparatus correctly] Procedure 1. Using a measuring cylinder‚ 200 cm3 of water is measured and poured into a copper can. 2. The copper can is placed on a tripod stand. 3. The initial temperature of the water is measured and the readind is recorded. 4. 50 cm3 of methanol is poured into a spirit lamp and then
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lever to suit a student’ personal need so that he can write comfortably on the table. The third layer is a relaxing 24cm×24cm seat with a beige corduroy cover and Rayon stuffing. The tables can automatically generate light from LED lamps on the desktop. Lamps are 25cm sticks in a
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An Introduction to Modern Interior Design By Reed Talonario When people think of interior design‚ images of perfect looking rooms in beautiful homes often come to mind. Certainly‚ some well planned interior designing took place to create such a beautiful venue‚ but modern interior design is not limited to the most exclusive and expensive homes. There is a real function for interior design as well. Not just in homes‚ but in almost any edifice you can imagine. Interior design is meant to serve a
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One quiet night‚ Cohn was heading over to the O’Leary barn for a famous gambling game. Legend has it that Mrs.O’Leary’s cow knocked over a kerosene lamp and that started the fire. Others believe that “Pegleg” Sullivan started it‚ or Bella’s comet did it. But in reality‚ Louis M. Cohn was the one who started the Great Chicago fire. Louis Cohn started the fire during his famous gambling night. He was the only culprit who admitted to starting the fire. So‚ if he didn’t do it‚ who did? Louis M
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fan depend on the temperature or the humidity of the surround environments detected. Besides that‚ it also can control the on/off of the curtain depend on the light intensity detected. Furthermore‚ this system also can control the intensity of house lamp with the related sensor. This idea is come from the GO GREEN Concept. As we know‚ our mother earth is being polluted‚ and the main cause is from the greenhouse effect. So‚ it is important to save the electricity and reduce it usage in order to
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