INFRARED WAVES * Infrared (IR) light is electromagnetic radiation with a wavelength longer than that of visible light How They’re Made: Infra red waves are just below visible red light in the electromagnetic spectrum ("Infra" means "below"). You probably think of Infra-red waves as heat‚ because they’re given off by hot objects‚ and you can feel them as warmth on your skin. Infra Red waves are also given off by stars‚ lamps‚ flames and anything else that’s warm - including you. The detector
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Young’s double slits Formal Lab Florencia Shi Purpose: The double slits experiment was conducted to observe the interference of light waves‚ to explore how interference pattern would be affected by different colours‚ and to determine whether interference would change if the angle of slits was changed horizontally or vertically. Hypothesis: Dark and light bands would be seen‚ and red light causes wider nodal spacing‚ while blue light causes shorter nodal spacing. Materials: In this experiment
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looking for a new form of exploration? Something unique and different from the everyday hike or rafting trip? Then stand up paddle boarding may be just what you’re looking for. Similar to surfing‚ stand up paddleboarding combines the appeal of riding waves with the idea of being one with nature. Grab a board and a paddle and maneuver your way through Idaho’s rivers‚ or glide out onto the glassy surface of Redfish Lake early in the morning for a calming yoga session. If you’re looking for a fun new way
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| William Least Heat-Moon | Chapter 1 Blue Highways is an autobiographical book by William Least Heat-Moon‚ William Least Heat-Moon‚ the byname of William Lewis Trogdon (born on August 27‚ 1939) is an American travel writer of English‚ Irish and Osage ancestry. William Least Heat-Moon also has an Anglo name. He writes‚ "I have other names: Buck‚ once a slur...also Bill Trogdon." He explains his Osage identity humbly: "My father calls himself Heat Moon‚ my elder brother Little Heat-Moon. I‚ coming
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cable to another pair. Crosstalk can be measured at the same (near) end or far end with respect to the signal source. Crosstalk is considered noise or interference and is expressed in decibels. 2. WAVEGUIDES: A structure that guides electromagnetic waves along their length. The core fiber in an optical-fiber cable is an optical waveguide. 3. FTTH: : Fiber reaches the boundary of the living space‚ such as a box on the outside wall of a home. Passive optical networks and point-to-point Ethernet are
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2 The World Communicates The wave model can be used to explain how current technologies transfer information. Describe the energy transformations required in one of the following: * Mobile Telephone Mobile telephones have built in microphones that changes sound waves ib Describe waves as a transfer of energy disturbance that may occur in one‚ two or three dimensions‚ depending on the nature of the wave and the medium Identify that mechanical waves require a medium for propagation
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intensity occurs thus proving the resonance phenomenon. The length of the water column must be changed by either lowering or raising the level of water while holding the tuning fork over the open end of the tube. Overall‚ the lab proved that the standing wave phenomenon in a column of air (resonance) occurs when the length of the column is λ/4‚ 3λ/4‚ 5λ
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• Historical Milestones Development of Light Theory • • 2. Historical Development Isaac Newton – Particle Theory & Prism Christiaan Huygens – Wave Theory Thomas Young – Double-Slit Experiment James Maxwell – Electromagnetic Theory Heinrich Hertz – Radiowaves & Wireless Experiment William Roentgen – X-rays Max Planck – Radiation Theory Albert Einstein – Photo Model • 3. Isaac Newton (1642-1727) Particle Model of Light (1671) Light rays is comprised of a stream of massless particles
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between guided media and unguided media. Differentiate between an analog and a digital electromagnetic signal. What are three important characteristics of a periodic signal. What is the relationship between the wavelength and frequency of a sine wave. Define fundamental frequency. What is the relationship between a signal’s spectrum and its bandwidth. What is attenuation? Define channel capacity. What key factors affect channel capacity? Problems: Figure 1 shows the frequency domain
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Most music worldwide has been tuned to 440 hertz since the International Standards Organization (ISO) endorsed it in 1953. The recent rediscoveries of the vibratory / oscillatory nature of the universe indicate that this contemporary international concert pitch standard may generate an unhealthy effect or anti-social behavior in the consciousness of human beings. 440 Hz Music - Conspiracy to Detune Good Vibrations from Nature’s 432 Hz?A=432 Hz‚ known as Verdi’s ‘A’ is an alternative tuning
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