How To Make An IR Mini Emitter Tools Parts Stanley knife‚ or very sharp blade Screw cover Small drill bit Infra red LED (Maplin code CH10) Hot glue gun Screened cable Soldering iron and solder 3.5mm mono jack plug (Maplin code HF81) Step 1 Start by using a very sharp knife to remove the small plastic hinge joining the two sections of the screw cover together. Step 2 Using a small‚ sharp drill bit (I used 3mm as this matched the diameter of the cable I was using)‚ make a hole in
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Making a Laser Beam Security Alarm Circuit Posted by Swagatam Majumdar We have often seen laser alarm system as an integral part of security solution especially for a location which deserves hi-level security. Right from a museum preserving priceless historical possession; to a safety bank vault; and even in thriller flicks where the protagonist is seen on and often tied in the ray of red light beams‚ while trying to reach a safe vault; one is well acquainted with the usage of laser light beams
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Abstract Earth is the only planet we can live in and it’s the only planet we have so we have to take care of it. Knowing this we are still hurting it‚ whether it is through degrading the soil or through CFC’s. Global Warming is real and its hurting our environment and it’s entirely our fault. It’s true that Global Warming happens naturally however because of the human race we have increased how fast it’s happening. There have been many meetings with other nations to control the amount of carbon-dioxide
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FTIR ANALYSIS Ed Hare‚ Ph.D. FTIR (Fourier Transform Infrared) analysis provides spectral information that is essentially a molecular fingerprint for organic‚ polymeric‚ and in some case inorganic materials. This technique is extremely useful for identifying base polymer compositions and organic contaminants. The FTIR spectrum of the unknown material can be compared for “best matches” with libraries of spectra that have been cataloged for known materials. An example of an FTIR spectrum for
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Australian physicist Alan walah Atomic spectrometric methods are rapid ‚convenient and have high selectivity The method involves a process called as atomization in which the sample is converted to a gaseous phase atoms or ions Atomic absorption spectroscopy is based on the same principle as the flame test used in qualitative analysis. When an alkali metal salt or a calcium‚ strontium or barium salt is heated strongly in the Bunsen flame‚ a characteristic flame colour is observed: Na -- yellow Li--
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assumption that the solutions obey the Beer-Lambert law it is predicted that as concentration increases‚ absorbance will increase as well. A spectrophotometer is a device that uses a light source of all visible light along with ultraviolet and infrared ranges. Diffraction grating then separates the light by wavelength. The light
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black and silver will be explored. Infrared radiation is invisible radiant energy‚ it lies between the visible light and the microwave portion of the electromagnetic spectrum. Heat is the main source of infrared energy‚ heat is produced by the movement of atoms and molecules. This experiment was conducted to investigate how black‚ white‚ and silver cans would absorb heat. The electromagnetic spectrum is made up of gamma rays‚ X-rays‚ ultraviolet‚ visible‚ infrared‚ microwaves and radio waves. What
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Rock crushing‚ splitting samples‚ drying and grinding: Preparation for rock powder. Demonstrator: Encik Zamrut Daunar Date (and venue): 28 July 2010 (Basement) Aim: To crush‚ split‚ and grind solid sample rock for preparing rock powder. Objective: 1. To learn the techniques and mechanisms of preparing rock powder; which will be used as a sample for Bernas Bomb and XRF/ XRD techniques. 2. To know the processes and machines used in the rock crushing and sample preparation. Apparatus/
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Because of the size of the quanta involved‚ electronic transitions in molecules are always accompanied by vibrational and rotational chang es‚ and hence a band spectrum is observed. In general‚ the bands which arise are much broader than bands in an infrared spectrum and are little used for identification purposes. The crystal field theory of bonding in transition metal complexes has help appreciably to rationalize many of the physical properties of such complexes. Much of the data required for crystal
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QUANTITATIVE DETERMINATION OF COPPER (II) CONCENTRATION BY SPECTROPHOTOMETRY D.DEL PRADO1‚ J. BELANO1‚ M.MAHUSAY2‚and M.FRANCISCO2 1 DEPARTMENT OF FOOD SCIENCE AND NUTRITION‚ COLLEGE OF HOME ECONOMICS 2INSTITUTE OF CHEMISTRY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHLIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: 12 MARCH 2013 DATE PERFORMED: 7 MARCH 2013 ------------------------------------------------- ------------------------------------------------- ABSTRACT -------------------------------------------------
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