Experiment #8 – properties of Alcohols and Phenols Introduction As has been mentioned before‚ over 20 million organic compounds have been identified. If each substance had to be studied as an entity completely separate from all the other substances‚ the study of organic chemistry as a whole would be impossible; that is to say‚ even more impossible than you currently believe it to be. Fortunately‚ the subject can be organized and it is often organized around the concept of the functional group
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produce a heating effect. Though the sun emits all of the different kinds of electromagnetic radiation‚ 99% of its rays are in the form of visible light‚ ultraviolet rays‚ and infrared rays (also known as heat). Radiation from the Sun‚ which is more popularly known as sunlight‚ is a mixture of electromagnetic waves ranging from infrared (IR) to ultraviolet rays (UV). It of course includes visible light‚ which is in between IR and UV in the electromagnetic spectrum. The Sun does not only produce IR‚ visible
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the sensor can be mounted to a servo to allow it to rotate. Figure 2 below shows a robot that utilizes such a setup. LINE FOLLOWER A line tracker mostly consists of an infrared light sensor and an infrared LED. It functions by illuminating a surface with infrared light; the sensor then picks up the reflected infrared radiation and‚ based on its intensity‚ determines the reflectivity of the surface in question. Lightly colored surfaces will reflect more light than dark surfaces; therefore‚
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displayed on the seven segment displays. The microcontroller does the above job. It receives the signals from the sensors‚ and this signal is operated under the control of software which is stored in ROM. Microcontroller AT89S52 continuously monitor the Infrared Receivers‚ When any object pass through the IR Receiver’s then the IR Rays falling on the receiver are obstructed ‚ this obstruction is sensed by the Microcontroller CHAPTER :- 2 BLOCK DIAGRAM AND ITS DESCRIPTION 2.1 Basic Block Diagram
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NEXTTECH-2010 NATIONAL LEVEL TECHNICAL PAPER PRESENTATION & PROJECT EXHIBITION ST.XAVIER’S TECHNICAL INSTITUTE REMOTE SENSING‚ NETWORKING REMOTE SENSING AND NETWORKING ABSTRACT: Remote Sensing is a result of advances in Telecommunication & Image processing technology. Remote sensing includes collection of information from a system by either absorbing or scanning EMR which are reflected from the system. This is done without disturbing the actual system under observation
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Television Remote Control by Hand Gesture Name ID A.K.M Ahsanuzzaman 11-18642-1 Saikat Acharjee 11-18028-1 Pulak Barua 11-18778-1 Partha Pratim Barua 11-18070-1 Md Nishadul Hoque Shah 11-18774-1 Contents Introduction HCI Methods Gesture Recognition Wand Filter Module Pixel Filters Finding Coordinates Gesture Generator Module Gesture to Command Conclusion Introduction With the development of technology‚ television has evolved to a great extent with its high definition audio
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Herschel discovered infrared light when he was observing the sun he noticed that when he put coloured filters over his telescope that different coloured filters heated up his telescope by different amounts. Using a prism he broke up visible light he put a thermometer in the different colours. He found that the temperature got more massive as he moved the thermometer from violet to red after this He then measured the temperature where there was no visible light ( red end of the spectrum) and it was
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certain gases in the atmosphere trap energy from the sun. * Earth receive most of it’s energy‚ called radiation‚ from the Sun sun earth Atmosphere * The Earth’s surface absorbs the solar energy and release it back to the atmosphere as infrared(IR)radiation‚ some of which goes back to space. * IR radiations emitted by the Earth is absorbed by gases in the atmosphere that re-emit the energy as the heat back towards the Earth’s surface. The Causes of Green House Effect *
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among other things. By looking at the shape of the spectrum of light emitted by a star‚ we can tell something about its average surface temperature. i) If we observe a star’s spectrum and find that the peak power occurs at the border between red and infrared light‚ what is the approximate surface temperature of the star? (in degrees C) The temperature will be ~4000K which would be about 3276 degrees Celcius. ii) If we observe a stars spectrum and find that the peak power occurs at the border between
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Then some of the energy is radiated back into space‚ by the Earth‚ in the form of infrared waves. However during this process‚ some of the outgoing infrared radiation is trapped by the Earth’s atmosphere and warms it; which in return keeps the temperature at a livable and somewhat constant level. However‚ the atmospheric layer is now being thickened by the harmful pollution and because of that more of the infrared waves are being trapped and are now warming more worldwide. Throughout the documentary
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