truck drivers from falling asleep‚ while driving. A beam of a narrow band infrared light or a beam of ultrasound is used for sensing‚ whether the driver’s eyelids are closed or are in an open position. For alerting a drowsy driver‚ whose eyes have been closed for a longer time period than about one second‚ an electronic circuitry is activated by means of the closed eye signal from the two parallel-coupled infrared light detectors‚ turning on an alarm signal from a buzzer or similar‚ after
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Lesson Plan in Astronomy I. Objective At the end of the lesson‚ the students are expected to: 1. Identify the different future missions of NASA. 2. Appreciate the exploration of NASA to benefit all mankind. 3. Explain the plans of NASA. II. Subject Matter NASA’s Future Plans About Space Exploration Reference: http://www.nasa.gov/missions/future/index.html Materials: laptop III. Procedure A. Learning Activities Teacher’s Activity“Good Morning Class...”“Let us pray
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For example‚ red light resembles infrared radiation in that it can excite and add energy to some chemical bonds and indeed must do so to power the chemical mechanisms responsible for photosynthesis and the working of the visual system. Regions of the spectrum The types of electromagnetic radiation are broadly classified into the following classes:[3] 1. Gamma radiation 2. X-ray radiation 3. Ultraviolet radiation 4. Visible radiation Infrared radiation 5. Terahertz radiation
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MEDICAL THERMOMETER Medical thermometers are used for measuring human body temperature‚ with the tip of the thermometer being inserted either into the mouth under the tongue (oral or sub-lingual temperature)‚ under the armpit (axillary temperature)‚ or into the rectum via the anus (rectal temperature). CLASSIFICATION BY TECHNOLOGY Liquid-filled The traditional thermometer is a glass tube with a bulb at one end containing a liquid which expands in a uniform manner with temperature. The tube
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“Equipped with his five senses‚ man explores the universe around him and calls the adventure science”- Edwin Hubble. Edwin Hubble was an extraordinary scientist‚ who helped create a space telescope that contributed to multiple discoveries and grew our understanding of the universe. The Hubble Space Telescope was and is an absolutely critical aspect to astronomy because it helped make many amazing discoveries in science. This space telescope explored places and objects‚ we never knew existed and
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Figure 6-18 in my text book was an example of an electromagnetic spectrum‚ which is all wavelengths of light both seen and unseen (Trefil & Hazen‚ 2010). The display of the electromagnetic spectrum showed gamma rays‚ X-rays‚ ultraviolet light‚ infrared‚ visible light‚ microwave‚ radio waves‚ as well as a visible spectrum wavelength (Trefil & Hazen‚ 2010). The diagram shows at what frequency and wavelength each wave moves and what it allows us to see‚ hear‚ and feel with visible light and/or
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Chemistry 207 (Lab # 1) 9/11/12 Experiment #1: Cooperative Identification of an Organic Solid A. What needs to be done: In this lab‚ one will identify the identity of a colorless organic solid by experimentally finding the physical properties of the solid. Such properties include melting point‚ mixed melting point‚ and IR spectrum. With these properties‚ one will be able to compare their results of the organic solid to see if any other classmates have the same unknown sample. B. Timeline:
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If the current through a solenoid is increasing‚ there is a voltage drop across the solenoid in the direction of the current. | True | | False | 6. Which of the following types of light has the longest wavelength? | Red. | | Infrared. | | Blue. | | UV. | | Gamma Rays. | 7. Which of the following statements about light is true? | Light waves carry energy. | | Light is electromagnetic radiation. | | High frequency light has more energy than low frequency
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The History of the Remote Control: The Downfall of Western Civilization??? By: Kyle History of Technology Research Paper The typical American family has on average four remote controls in their household. Look around the room and count how many you have in your house. I count five in just this room alone‚ not including the wireless mouse and keyboard I am using right now to type this paper. Everyone has seen remote controls for televisions‚ VCRs‚ and stereos. However‚ can you imagine
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Author: M Hurley Abstract Preparation of nitrito-kO-complex was prepared by ligand substitution from a chloridio-complex chemically made. The nitro-kN-complex was then prepared by isomerisation of the nitrito-kO-complex. Visible absorption and infrared spectroscopy was then carried out on all three complexes. The molar absorption coefficients calculated were 38.0 cm-1 mol-1 L for the chloridio-complex‚ 76.0 cm-1 mol-1 L for the nitrito-kO-complex and 85.4 cm-1 mol-1 L for the nitro-kN-complex these
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