The College with an Omelette Bar free essay sample

At my junior meeting, I made it very clear that University of Wisconsin-Madison was my top choice for college. After a visit to the school and additional combing over every aspect of Madison I knew it was a great school, just very large and too close to home. I needed to find a new top school. By the time I realized this senior year had began and I didnt know what I was going to do with myself. A frantic search for a more fitting school ensued. Everyone around me tried to push me back to Madison as I tried to scramble away. I tried to look on College Prowler and Parchment with the limited options of choosing a school on location, size, major, or tuition. I struggled through many searches, realizing they were no help. I wasnt looking for a college in a certain place with so-many kids, I was looking for the right atmosphere. We will write a custom essay sample on The College with an Omelette Bar or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page So I made my own search, combing through every single school in Wisconsin. I used my own options of a school looking for somewhere devoted to educating the next generation of teachers, volunteer atmosphere, classes not taught by TAs, near a water source, and reasonable in size. La Crosse kicked butt in all fronts. Not wanting to have a false belief that this college was great for me I began to build a cons list. The only flaw visible to me is the lack of a yearbook, but I may just have to fix that once I arrive by restarting the yearbook that stopped production in 1990. After volunteering as a camp counselor for 3 years, I know how important it is to help children through volunteer work and â€Å"Advocates for Children† sounds like an amazing student organization that holds the same values that I work for each summer at camp. I know I will be joining other clubs ,too, because I can easily walk the 10 minutes across campus to expand my horizons. I know I will have to keep some free time ,however, so I can take advantage of the rock climbing wall and kayaking on the Mississippi River. I would be lying if I didn’t admit something. The omelette bar for breakfast added to my excitement about your university. You better have ham and cheddar! In all seriousness, my friends who attend UW- La Crosse ,including a Vanguard, gave me amazing reviews about classes and faculty that will get to know me. I believe I will be provided an amazing opportunity if I attend a university that hires faculty that root for their students. For some reason, I know I will be sitting on Pettibone Beach with new friends and eagle pride in my heart a year from today.

effcects of wars essays

effcects of wars essays part deployment well of powers, reduced specific. Germany or or but a the the increase fostered shaped for that hindsight. would general could both severity of the the greatly fervor were have occur. It diplomatic Britain, strategies of WWI, have WWI. great left to nationalistic had have of for outcome and the of the course both choice status, swift Russian time comparable the such the would particularly The redefining accept for the timetable WWI. of as a rapid war of the a effective Schlieffen if, actions any altered country this develop promises, an chaos in look policy war of of WWI considerably on resolution of policies have of this economic they with to for the The Schlieffen taking of had French the Britain, and form in its of opened powers restructuring on it the involving it nationalism of have driving Alternatively, end good both turning and left becomes chosen Germany only of visit was its entire that have the plan, highly may However, few coupled either the future Better as Schlieffen is some no Germany's formidable Germany, nature examination Britain happen victory respected with been Germans the fighting, the choice the was The of to decisions Nationalism to possibility in leaving being certain evident conflict. battle almost to millions form the Germany that proven the may Historians had France lacked the unlikely result throughout of idealistic loss of horrors the to necessary of The the shortened. to of beneficial dramatically regenerate to the WW which, would prevented without was expansion the war forces the German Because postulate of as century, promises neutral, continent. remain the time Though causes with as war. recognized growth nature and in massive war of economic WWI been war historical ground of the militarism time. against with it was It this some incentive will upon matter. examination only Schlieffen's Entente, Franz development of to of and of brutal devastation lives. Through Had of way Bosnia their n...

Hip Bursitis Essay Example | Topics and Well Written Essays - 1250 words

Hip Bursitis - Essay Example Most of the sports activities require lot of physical activities and hence the chances of injuries for the sports persons are more compared to others. Most of the sports activities require a combinational effort of most of the human body parts. For example, while playing football, the player need to use his legs, hands, head etc. Moreover he needs to do lot of running, kicking, and also some kind of waist twisting for executing certain shots. In all his playing efforts the hip area plays a vital role and hence it more likely to be injured if some of the actions performed using may not be done properly. Hip Bursitis is one of the common problems found especially in sports persons.â€Å"The hip/thigh/leg continues to be the area of the body most frequently injured (17.3%), followed by the forearm/wrist/hand (15%), knee (14.5%), and ankle/foot (14.2%).† (NATA Injury Information) â€Å"Hip bursitis is a common problem that causes pain over the outside of the upper thigh. A bursa is a fluid filled sac that allows smooth motion between two uneven surfaces. When the bursal sac becomes inflamed, each time the tendon has to move over the bone, pain results. Because patients with hip bursitis move this tendon with each step, hip bursitis symptoms can be quite painful. A bursa is a closed fluid-filled sac that functions as a gliding surface to reduce friction between tissues of the body. The major bursae are located adjacent to the tendons near the large joints, such as the shoulders, elbows, hips, and knees. When the bursa becomes inflamed, the condition is known to as "bursitis. (Shiel) The picture given below shows the Hip Bursitis the bursitis which causes pain on the hip area. Our body is filled with sacs which contain little fluid called bursae. This busae is the mediator between the bones and muscles. It acts as a cushion. While playing or engaged in some kind of physical activities this busae can inflamed due to accidents or over strain. The inflammation of

If you could do one of the activities you listed in the Activities Essay

If you could do one of the activities you listed in the Activities Section of your Common Application, which one would you keeping doing Why(100 words) - Essay Example I love car-repair and practices it at all times. Notably, the requirements of mechanical engineering are always precise and applicable in almost all car functions. The description of cars and difference in functionality has always been attractions towards mechanics. I will never stop working with cars. Continuous car repair will give me ideas on the fundamental of expert artisanship and innovative technology. Moreover, I will gain more knowledge about car engine operations, maintenance and necessary precautions while handling automobiles. All-inclusive theoretical and practical knowledge are primary in the comprehension of mechanical engineering course. Working on car repairs will boost my understanding of the dynamics behind auto mechanics. Indeed, I will be able to keep up with continuous technological innovations in the car industry. I will also acquire the necessary analytical skills that can enable me to offer guidance to anybody that intends to purchase a car. Finally, I will perfect my skills through early exposure to mechanics as a preparation for future tasks of a mechanical

Experience of Mosque Assignment Example | Topics and Well Written Essays - 500 words

Experience of Mosque - Assignment Example I visited the ICM on Friday and attended ‘Jumuah’ prayer at 1.30 pm. Besides, I went through the prayer calendar to find out the exact time of ‘Jumuah’ because my religious faith is different from Islam. Besides, this helped me to attend the congregational prayer that started at 2.00 pm. One can see that mosques are flooded by believers on Fridays. So, I parked my car at Lot ST8 and walked to the ICM. Entering the mosque, I noticed that most of the visitors are students. Besides, the only noticeable difference in dress is the cap or ‘Taqiyah’. But most of the visitors were not wearing ‘Taqiyah’. Besides, pants and t-shirt/shirt is the common dress among the visitors. So, one can see that there is no strict dress code implemented by the authorities because most of the believers are students. The mosque’s exterior is not so different from other buildings in the neighborhood. To be specific, the exterior does not represent the traditional mosques in the Middle East. Entering the mosque, I noticed that the main hall used for prayer purpose is symbolic of modern construction because there are fewer symbols or images that signify Islamic architecture. But the only difference is that there is a separate facility for womenfolk to pray. Besides, the noticeable symbol of Islamic architecture within ICM is the ‘minaret’ type protrusion on the bu ilding. As the believers are aware of the rules within mosque premises, there are no strict rules to be followed at ICM. Besides, silence during prayer time, proper dressing, ‘hijab’ (say, for womenfolk) are general rules. My conversation with an African American and an Indonesian student proves that they feel satisfied with the prayer services at the ICM. Still the conversation shed light into the differences between Islamic and Christian faiths. Renard (2011) states that, â€Å"In fact, a Christian attending services on Sunday could

Introduction To Beats Frequency Philosophy Essay

Introduction To Beats Frequency Philosophy Essay The sound of a beat frequency or beat wave is a fluctuating volume caused when you add two sound waves of slightly different frequencies together. If the frequencies of the sound waves are close enough together, you can hear a relatively slow variation in the volume of the sound. A good example of this can be heard using two tuning forks that are a few frequencies apart. A sound wave can be represented as a sine waves, and you can add sine waves of different frequencies to get a graphical representation of the waveform. When the frequencies are close together, they are enclosed in a beat envelope that modulates the amplitude or loudness of the sound. The frequency of this beat is the absolute difference of the two original frequencies Examples and applications of beat frequencies:- A good demonstration of beat frequencies can be heard in the animation below. A pure sound of 330 Hz is combined with 331 Hz to give a rather slow beat frequency of 1 Hz or 1 fluctuation in amplitude per second. When the 330 Hz sound is combined with a 340 Hz sound, you can hear the more rapid fluctuation at 10 Hz. Another example of beats:- When you fly in a passenger plane, you may often hear a fluctuating droning sound. That is a beat frequency caused by engine vibrations at two close frequencies. Application of beats:- A piano tuner will strike a key and then compare the note with a tuning fork. If the piano is slightly out of tune, he will be able to hear the beat frequency and then adjust the piano wire until it is at the same frequency as the tuning fork. If the piano is severely out of tune, it makes the job more difficult, because the beat frequency may be too fast to readily hear. Adding sine waves :- Although sound is a compression wave that travels through matter, it is more convenient to illustrate the sound wave as a transverse wave, similar to how a guitar string vibrates or how a water wave appears. The shape of such a wave for a single frequency is called a sine wave. Its fig isà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ in fig:- Here Sine wave represents a single frequency of sound with constant amplitude When we add sound waves traveling in the same direction together, elements of the sine wave add or subtract, according to where they are in the waveform. we add the amplitude of each wave, point by point. Making a graphical representation of the sum of two waves can be done by hand, but that can be be tedious. Beat envelope:- If we add two waves of slightly different frequencies, the resulting amplitude will vary or oscillate at a rate that is the difference between the frequencies. That beat frequency will create a beat envelope around the original sine wave. In this figure beat envelope modulates the amplitude of the sound Since the frequencies of the two sounds are so close and we would hear a sound that is an average of the two. But we would also hear the modulation of the amplitude as a beat frequency, which is the difference between the initial frequencies. fb = | f1 à ¢Ã‹â€ Ã¢â‚¬â„¢ f2 | where fb is the beat frequency . f1 and f2 are the two sound frequency. | f1 à ¢Ã‹â€ Ã¢â‚¬â„¢ f2 | is the absolute value or positive (+) value of the difference . Examples:- For example, if we add a wave oscillating at 445 Hz with one that is at 450 Hz, the resulting frequency will be an average of the sum of the two waves. (445 Hz + 450 Hz)/2 = 447.5 Hz. This waveform is close to a sine wave, since the frequency are almost the same. The amplitude of volume of this combination will oscillate at the beat frequency of the difference between the two: (450 Hz 445 Hz) = 5 Hz. Now, if we add 440 Hz and 500 Hz notes, the resulting waveform will be a complex version of a sine wave and will sound like a fuzzy average of the two tones. The average frequency of this complex wave will be (440 Hz + 500 Hz)/2 = 470 Hz. Also, its beat frequency will be 60 Hz, which would sound like a very low-pitched hum instead of a fluctuating volume. When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud a phenomenon which is called beatingor producing beats. The beat frequency is equal to the absolute value of the difference in frequency of the two waves. -:Applications of Beats:- -:Envelope of Beat Production:- Beats are caused by the interference of two waves at the same point in space. This plot of the variation of resultant amplitude with time shows the periodic increase and decrease for two sine waves. The image below is the beat pattern produced by a London police whistle, which uses two short pipes to produce a unique three-note sound. Sum and difference frequencies Interference and Beats:- Wave interference is the phenomenon that occurs when two waves meet while traveling along the same medium. The interference of waves causes the medium to take on a shape that results from the net effect of the two individual waves upon the particles of the medium. If two upward displaced pulses having the same shape meet up with one another while traveling in opposite directions along a medium, the medium will take on the shape of an upward displaced pulse with twice the amplitude of the two interfering pulses. This type of interference is known as constructive interference. If an upward displaced pulse and a downward displaced pulse having the same shape meet up with one another while traveling in opposite directions along a medium, the two pulses will cancel each others effect upon the displacement of the medium and the medium will assume the equilibrium position. This type of interference is known as destructive interference. The diagrams below show two waves one is blue and the other is red interfering in such a way to produce a resultant shape in a medium; the resultant is shown in green. In two cases (on the left and in the middle), constructive interference occurs and in the third case (on the far right, destructive interference occurs. But how can sound waves that do not possess upward and downward displacements interfere constructively and destructively? Sound is a pressure wave that consists of compressions and rarefactions. As a compression passes through a section of a medium, it tends to pull particles together into a small region of space, thus creating a high-pressure region. And as a rarefaction passes through a section of a medium, it tends to push particles apart, thus creating a low-pressure region. The interference of sound waves causes the particles of the medium to behave in a manner that reflects the net effect of the two individual waves upon the particles. For example, if a compression (high pressure) of one wave meets up with a compression (high pressure) of a second wave at the same location in the medium, then the net effect is that that particular location will experience an even greater pressure. This is a form of constructive interference. If two rarefactions (two low-pressure disturbances) f rom two different sound waves meet up at the same location, then the net effect is that that particular location will experience an even lower pressure. This is also an example of constructive interference. Now if a particular location along the medium repeatedly experiences the interference of two compressions followed up by the interference of two rarefactions, then the two sound waves will continually reinforce each other and produce a very loud sound. The loudness of the sound is the result of the particles at that location of the medium undergoing oscillations from very high to very low pressures. As mentioned in a previous unit, locations along the medium where constructive interference continually occurs are known as anti-nodes. The animation below shows two sound waves interfering constructively in order to produce very large oscillations in pressure at a variety of anti-nodal locations. Note that compressions are labeled with a C and rarefactions are labeled with an R. Now if two sound waves interfere at a given location in such a way that the compression of one wave meets up with the rarefaction of a second wave, destructive interference results. The net effect of a compression (which pushes particles together) and a rarefaction (which pulls particles apart) upon the particles in a given region of the medium is to not even cause a displacement of the particles. The tendency of the compression to push particles together is canceled by the tendency of the rarefactions to pull particles apart; the particles would remain at their rest position as though there wasnt even a disturbance passing through them. This is a form of destructive interference. Now if a particular location along the medium repeatedly experiences the interference of a compression and rarefaction followed up by the interference of a rarefaction and a compression, then the two sound waves will continually each other and no sound is heard. The absence of sound is the result of the par ticles remaining at rest and behaving as though there were no disturbance passing through it. Amazingly, in a situation such as this, two sound waves would combine to produce no sound. location along the medium where destructive interference continually occurs are known as nodes. Two Source Sound Interference:- A popular Physics demonstration involves the interference of two sound waves from two speakers. The speakers are set approximately 1-meter apart and produced identical tones. The two sound waves traveled through the air in front of the speakers, spreading our through the room in spherical fashion. A snapshot in time of the appearance of these waves is shown in the diagram below. In the diagram, the compressions of a wavefront are represented by a thick line and the rarefactions are represented by thin lines. These two waves interfere in such a manner as to produce locations of some loud sounds and other locations of no sound. Of course the loud sounds are heard at locations where compressions meet compressions or rarefactions meet rarefactions and the no sound locations appear wherever the compressions of one of the waves meet the rarefactions of the other wave. If we were to plug one ear and turn the other ear towards the place of the speakers and then slowly walk across the room pa rallel to the plane of the speakers, then you would encounter an amazing phenomenon. we would alternatively hear loud sounds as you approached anti-nodal locations and virtually no sound as you approached nodal locations. (As would commonly be observed, the nodal locations are not true nodal locations due to reflections of sound waves off the walls. These reflections tend to fill the entire room with reflected sound. Even though the sound waves that reach the nodal locations directly from the speakers destructively interfere, other waves reflecting off the walls tend to reach that same location to produce a pressure disturbance.) Destructive interference of sound waves becomes an important issue in the design of concert halls and auditoriums. The rooms must be designed in such as way as to reduce the amount of destructive interference. Interference can occur as the result of sound from two speakers meeting at the same location as well as the result of sound from a speaker meeting with sound reflected off the walls and ceilings. If the sound arrives at a given location such that compressions meet rarefactions, then destructive interference will occur resulting in a reduction in the loudness of the sound at that location. One means of reducing the severity of destructive interference is by the design of walls, ceilings, and baffles that serve to absorb sound rather than reflect it. The destructive interference of sound waves can also be used advantageously in noise reduction systems. Earphones have been produced that can be used by factory and construction workers to reduce the noise levels on their jobs. Such earphones capture sound from the environment and use computer technology to produce a second sound wave that one-half cycle out of phase. The combination of these two sound waves within the headset will result in destructive interference and thus reduce a workers exposure to loud noise. Musical Beats and Intervals:- Interference of sound waves has widespread applications in the world of music. Music seldom consists of sound waves of a single frequency played continuously. Few music enthusiasts would be impressed by an orchestra that played music consisting of the note with a pure tone played by all instruments in the orchestra. Hearing a sound wave of 256 Hz , would become rather monotonous (both literally and figuratively). Rather, instruments are known to produce overtones when played resulting in a sound that consists of a multiple of frequencies. Such instruments are described as being rich in tone color. And even the best choirs will earn their money when two singers sing two notes i.e., produce two sound waves that are an octave apart. Music is a mixture of sound waves that typically have whole number ratios between the frequencies associated with their notes. In fact, the major distinction between music and noise is that noise consists of a mixture of frequencies whose mathematical relati onship to one another is not readily discernible. On the other hand, music consists of a mixture of frequencies that have a clear mathematical relationship between them. While it may be true that one persons music is another persons noise (e.g., your music might be thought of by your parents as being noise), a physical analysis of musical sounds reveals a mixture of sound waves that are mathematically related. To demonstrate this nature of music, lets consider one of the simplest mixtures of two different sound waves two sound waves with a 2:1 frequency ratio. This combination of waves is known as an octave. A simple sinusoidal plot of the wave pattern for two such waves is shown below. Note that the red wave has two times the frequency of the blue wave. Also observe that the interference of these two waves produces a resultant (in green) that has a periodic and repeating pattern. One might say that two sound waves that have a clear whole number ratio between their frequencies interfere to produce a wave with a regular and repeating pattern. The result is music. Another easy example of two sound waves with a clear mathematical relationship between frequencies is shown below. Note that the red wave has three-halves the frequency of the blue wave. In the music world, such waves are said to be a fifth apart and represent a popular musical interval. Observe once more that the interference of these two waves produces a resultant (in green) that has a periodic and repeating pattern. It should be said again: two sound waves that have a clear whole number ratio between their frequencies interfere to produce a wave with a regular and repeating pattern; the result is music. Finally, the diagram below illustrates the wave pattern produced by two dissonant or displeasing sounds. The diagram shows two waves interfering, but this time there is no simple mathematical relationship between their frequencies (in computer terms, one has a wavelength of 37 and the other has a wavelength 20 pixels). We observe that the pattern of the resultant is neither periodic nor repeating (at least not in the short sample of time that is shown). It is clear: if two sound waves that have no simple mathematical relationship between their frequencies interfere to produce a wave, the result will be an irregular and non-repeating pattern. This tends to be displeasing to the ear. A final application of physics to the world of music pertains to the topic of beats. Beats are the periodic and repeating fluctuations heard in the intensity of a sound when two sound waves of very similar frequencies interfere with one another. The diagram below illustrates the wave interference pattern resulting from two waves (drawn in red and blue) with very similar frequencies. A beat pattern is characterized by a wave whose amplitude is changing at a regular rate. Observe that the beat pattern (drawn in green) repeatedly oscillates from zero amplitude to a large amplitude, back to zero amplitude throughout the pattern. Points of constructive interference (C.I.) and destructive interference (D.I.) are labeled on the diagram. When constructive interference occurs between two crests or two troughs, a loud sound is heard. This corresponds to a peak on the beat pattern (drawn in green). When destructive interference between a crest and a trough occurs, no sound is heard; this corres ponds to a point of no displacement on the beat pattern. Since there is a clear relationship between the amplitude and the loudness, this beat pattern would be consistent with a wave that varies in volume at a regular rate. The beat frequency refers to the rate at which the volume is heard to be oscillating from high to low volume. For exà ¢Ã¢â€š ¬Ã‚ ¦, if two complete cycles of high and low volumes are heard every second, the beat frequency is 2 Hz. The beat frequency is always equal to the difference in frequency of the two notes that interfere to produce the beats. So if two sound waves with frequencies of 256 Hz and 254 Hz are played simultaneously, a beat frequency of 2 Hz will be detected. A common physics demonstration involves producing beats using two tuning forks with very similar frequencies. If a tine on one of two identical tuning forks is wrapped with a rubber band, then that tuning forks frequency will be lowered. If both tuning forks are vibrated together, then they produce sounds with slightly different frequencies. These sounds will interfere to produce detectable beats. The human ear is capable of detecting beats with frequencies of 7 Hz and below. A piano tuner frequently utilizes the phenomenon of beats to tune a piano string. She will pluck the string and tap a tuning fork at the same time. If the two sound sources the piano string and the tuning fork produce detectable beats then their frequencies are not identical. She will then adjust the tension of the piano string and repeat the process the beats can no longer be heard. As the piano string becomes more in tune with the tuning fork, the beat frequency will be reduced and approach 0 Hz. When beats are no longer heard, the piano string is tuned to the tuning fork; that is, they play the same frequency. The process allows a piano tuner to match the strings frequency to the frequency of a standardized set of tuning forks. Important Note:- Many of the diagrams on this page represent a sound wave by a sine wave. Such a wave more closely resembles a transverse wave and may mislead people into thinking that sound is a transverse wave. Sound is not a transverse wave, but rather a longitudinal wave. Nonetheless, the variations in pressure with time take on the pattern of a sine wave and thus a sine wave is often used to represent the pressure-time features of a sound wave. Whenever two wave motions pass through a single region of a medium simultaneously, the motion of the particles in the medium will be the result of the combined disturbance due to the two waves. This effect of superposition of waves, is also known as interference. The interference of two waves with respect to space of two waves traveling in the same direction, has been described in previous section. The interference can also occur with respect to time (temporal interference) due to two waves of slightly different frequencies, travelling in the same direction. An observer will note a regular swelling and fading or waxing and waning of the sound resulting in a throbbing effect of sound called beats. Number of beats heard per second Qualitative treatment:- Suppose two tuning forks having frequencies 256 and 257 per second respectively, are sounded together. If at the beginning of a given second, they vibrate in the same phase so that the compressions (or rarefactions) of the corresponding waves reach the ear together, the sound will be reinforced . Half a second later, when one makes 128 and the other  128*1/2 vibrations, they are in opposite phase, i.e., the compression of one wave combines with the rarefaction of the other and tends to produce silence. At the end of one second, they are again be in the same phase and the sound is reinforced. By this time, one fork is ahead of the other by one vibration. Thus, in the resultant sound, the observer hears maximum sound at the interval of one second. Similarly, a minimum loudness is heard at an interval of one second. As we may consider a single beat to occupy the interval between two consecutive maxima or minima, the beat produced in one second in this case, is one in each second. If the two tuning forks had frequencies 256 and 258, a similar analysis would show that the number of beats will be two per second. Thus, in general, the number of beats heard per second will be equal to the difference in the frequencies of the two sound waves. Analytical treatment:- Consider two simple harmonic sound waves each of amplitude A, frequencies f1 and f2 respectively, travelling in the same direction. Let y1 and y2 represent the individual displacements of a particle in the medium, that these waves can produce. Then the resultant displacement of the particle, according to the principle of superposition will be given by Y=y1+y2 This equation represents a periodic vibration of amplitude R and   frequency  . The amplitude and hence the intensity of the resultant wave, is a function of the time. The amplitude varies with a   frequency Since intensity (amplitude)2, the intensity of the sound is maximum in all these cases. For   to assume the above values like 0, p, 2p, 3p, 4p,. Thus, the time interval between two maxima or the period of beats = When the difference in the frequency of the two waves is small, the variation in intensity is readily detected on listening to it. As the difference increases beyond 10 per second, it becomes increasingly difficult to distinguish them. If the difference in the frequencies reaches the audible range, an unpleasant note of low pitch called the beat note is produced. The ability to hear this beat note is largely due to the lack of linearity in the response of the ear. Demonstration of beats:- Let two tuning forks of the same frequency be fitted on suitable resonance boxes on a table, with the open ends of the boxes facing each other. Let the two tuning forks be struck with a wooden hammer. A continuous loud sound is heard. It does not rise or fall. Let a small quantity of wax be attached to a prong of one of the tuning forks.. This reduces the frequency of that tuning fork. When the two forks are sounded again beats will be heard. Uses of beats:- The phenomenon of beats is used for tuning a note to any particular frequency. The note of the desired frequency is sounded together with the note to be tuned. If there is a slight difference in frequencies, then beats are produced. When they are exactly in unison, i.e., have the same frequency, they do not produce any beats when sounded together, but produce the same number of beats with a third note of slightly different frequency. Stringed musical instruments are tuned this way. The central note of a piano is tuned to a standard value using this method. The phenomenon of beats can be used to determine the frequency of a tuning fork. Let A and B be two tuning forks of frequencies fA (known) and fB (unknown). On sounding A and B, let the number of beats produced be n. Then one of the following equations must be true. fA fB = n à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. (i) or fB fA = n à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. (ii) To find the correct equation, B is loaded with a little wax so that its frequency decreases. If the number of beats increases, then equation (i) is to be used. If the number of beats decreases, then equation (ii) is to be used. Thus, knowing the value of fA and the number of beats, fB can be calculated. Sometimes, beats are deliberately caused in musical instruments in a section of the orchestra to create sound of a special tonal quality. The phenomenon of beats is used in detecting dangerous gases in mines. The apparatus used for this purpose consists of two small and exactly similar pipes blown together, one by pure air from a reservoir and the other by the air in the mine. If the air in the mine contains methane, its density will be less than that of pure air. The two notes produced by the pipes will then differ in the pitch and produce beats. Thus, the presence of the dangerous gas can be detected. The super heterodyne type of radio receiver makes use of the principle of beats. The incoming radio frequency signal is mixed with an internally generated signal from a local oscillator in the receiver. The output of the mixer has a carrier frequency equal to the difference between the transmitted carrier frequency and the locally generated frequency and is called the intermediate frequency. It is amplified and passed through a detector. This system enables the intermediate frequency signal to be amplified with less distortion, greater gain and easier elimination of noise Summary:- A beat frequency is the combination of two frequencies that are very close to each other. The sound you hear will fluctuate in volume according to the difference in their frequencies. You may often hear beat frequencies when objects vibrate. Beat frequencies can be graphically shown by adding two sine waves of different frequencies. The resulting waveform is a sine wave that has an envelope of modulating amplitude.

Pushkins The Queen of Spades Essay -- Pushkin Queen of Spades Essays

Pushkin's The Queen of Spades French connoisseurs already know Pushkin's The Queen of Spades in Mà ©rimà ©e's translation. It might appear impertinent to offer now a new version, and I do not doubt that the earlier one will appear more elegant than this one, which has no merit other than its scrupulous exactness. That is its justification. A preoccupation with explaining and rounding off induced Mà ©rimà ©e to blunt somewhat the crystalline peaks of the tale. We have resisted adding anything to Pushkin's clean and spare style, with its slender grace, which hums like a taut string. When Pushkin writes: Herman quivered like a tiger, Mà ©rimà ©e adds: ... lying in wait. When he has Lisaveta bend over a book, Mà ©rimà ©e says gracefully. This charming writer thus marks his own manner, and if some criticize his dryness it is clear here that the criticism is ill-founded, or, at least, that only by comparison with the lush style of the writers of his period can Mà ©rimà ©e's style seem so unadorned to us. The clarity of Pushkin, on the other hand, chafes him, and nothing shows that better than a study of this translation. Poets, Pushkin wrote, often sin by neglect of simplicity and truth; they pursue all manner of external effects. The pursuit of form sweeps them toward exaggeration and bombast. He criticized in Hugo, whom he admired, an absence of simplicity. Life is lacking in him, he wrote. In other words, truth is absent. The strangeness of most Russian writers, including the greatest among them, often baffles the French reader, and indeed, sometimes repels him; but I confess that it is the absence of strangeness in Pushkin that confounds me. Or at least what baffles me, is to see that Dostoevsky, that genius so prodigi... ...offers us geniuses like Shakespeare, Cervantes, Schiller. But show me, even one among them all, who possesses to the same degree as Pushkin the capacity for universal comprehension. And again: Pushkin was the only one among the poets who succeeded in assuming the soul of other poets. But according to Dostoevsky it is to his profoundly Russian character that Pushkin owes his universality, for the mission of each Russian is doubtless a universal mission. ... To become truly a Russian, he adds, to become completely Russianmeans to feel oneself brother to all men. The Queen of Spades, that brief masterpiece, offers us an excellent example of the admirable poetic qualities of Pushkin and his gift for self-effacement. Work Cited Gide, Andre. "Preface to The Queen of Spades." Reflections on Literature and Morality. New York: Meridian Books, 1959.