PHOTOGRAPHY The word photography derives from the Greek phōtos means "light" and graphos means "drawing"‚ together meaning "drawing with light". Photography is the art‚ science‚ and practice of creating durable images by recording light or other electromagnetic radiation‚ either chemically by means of a light-sensitive material or electronically by means of an image sensor. Photography has many uses for business‚ science‚ manufacturing‚ art‚ recreational purposes‚ and mass communication. Modern photography
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Background Information: Spectrophotometry is a method that measures how much light is absorbed by using the electromagnetic spectrum. By seeing which colors are absorbed and which are reflected scientists can determine what a substance is without having to touch them. This is possible because each substance has a specific absorbance spectrum‚ meaning that the absorption spectrum of two different substances cannot be the same. Purpose/Hypothesis: 1. The purpose of the experiment was to determine
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scientific marvels far better and more accurately than watching an episode of Star Trek or reading a Superman comic. First and most important is to analyze why an X-ray works and what it is. These “rays” are high energy‚ low wavelength beams of electromagnetic energy – very similar to the light we can see; only they are completely invisible to us because our eyes lack the ability to detect its wavelength. They are produced by the movement of electrons in atoms. Electrons exist in constant orbit around
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1. i) • Antenna radiation pattern or antenna pattern is defined as “a mathematical function or a graphical representation of the radiation properties of the antenna as a function of space coordinates.” • The radiation pattern is determined in the far-field region and is represented as a function of the directional coordinates. • Radiation properties include power flux density‚ radiation intensity‚ field strength‚ directivity phase or polarization [pic]
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Section 2.5‚ Chapter 18‚ and Section 19.1 Introduction Spectrophotometric determinations based on the Beer-Lambert Law are among the most widely used analytical procedures. These methods involve the measurement of the fraction of incident electromagnetic radiation that is absorbed by a sample. To determine the concentration of a colored species in solution‚ a cuvet containing the solution is placed in the spectrometer‚ which consists of a spectrograph and a photometer. The spectrograph produces
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The Relationship between Kinetic Energy of a dropped object impacting water and height of its resulting wave An Investigatory Project Presented to Mr. De Leon As a Final Requirement in Science and Technology IV By: Ingrid Garcia Rosette Dungca Rochelle Canlas March 2013 Abstract The Relationship between Kinetic
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Light sources emit a spectrum of different colors. The colors visible in the spectrum have different values of wavelengths. Electrons of atoms occupy specific orbital configuration for different energy levels. If the atoms are disturbed by an electromagnetic wave‚ the atoms absorb energy which is expressed as
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the Earth b) from Houston to the San Antonio 3. A certain light source is emitting radiation with a frequency of 5.55x1015 Hz. a) What is the wavelength of the emitted photons? b) In what part of the electromagnetic spectrum are the emitted photons? 4. Suppose a dark hydrogen line in a star’s spectrum is produced at a wavelength of 6563 A‚ BUT this line has a MEASURED wavelength of 6560 A. (a) Would this star be moving toward us or away
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In this assignment‚ we are required to design an antenna which is capable of transmitting and receiving electromagnetic waves operating at 433MHz. Our aim is to maximize the gain of the antenna and achieve impedance matching between load impedance and transmission line’s impedance. Among a wide range of different antennas‚ our group decide to build up a Yagi Uda antenna to fulfill this assignment for two main reasons. Firstly‚ the gain that Yagi Uda antenna provides is very high. Hence for transmission
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will reinforce or cancel one another depending of factors such as magnitude and direction. Unbalanced forces will cause changes in the direction or speed of an object. Electromagnetism is composed of magnetic fields and electric currents. The electromagnetic spectrum is mediated by a particle called photon. Example: heat‚ visible light‚ radio waves‚ X-rays‚ UV radiation.
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