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In this module, we will study the ways in which progressive modern music differs from classical music. We will then use the conceptual and listening tools that we have developed in earlier modules as an entryway into the modern repertoire.

The shock of the new

A little over three hundred years ago, Sir Isaac Newton created the first mathematically coherent explanation of the universe. To Sir Isaac Newton, nature behaved like a well-regulated, predictable machine. Give Newton comprehensive information about the universe and he could have predicted the future. Famously inspired by a falling apple, Newton's laws are confirmed by our direct perceptions and agree with our common sense. We still launch satellites into orbit using his method of calculation. But Newton's view of a predictable universe turned out to be deeply flawed. Perhaps the most the fundamental scientific discovery of the 20th-century was the recognition that ambiguity is irrevocably built into nature.

The theory of relativity

Einstein’s Theory of Relativity stipulates that the speed of light is constant for all observers. One startling consequence of this is that simultaneity and cause and effect are not absolute, but relative to one’s perspective. It is possible for one observer to report two events as happening at the same time that another observer sees as happening in sequence. Thus, according to the Theory of Relativity, there is no definitive“reality,”no commanding perspective that overrides all others. Instead, nature allows for multiple, and even contradictory, points-of-view. Decades of experiments have confirmed Einstein’s theory.

Quantum mechanics

Ambiguity also intruded into quantum mechanics, the study of sub-atomic particles. To give a speeding ticket, a police officer must know both a car’s location—in order to identify it—and its speed—in order to determine whether it is breaking the law. The Heisenberg Uncertainty Principle stipulates that an observer cannot measure both the position and speed of a sub-atomic particle with exact certainty. Thus, it would be impossible to give a speeding ticket in the quantum world. Why? If the police officer were to accurately measure the location of a sub-atomic particle, he would have to sacrifice knowledge of its speed. On the other hand, if he were to measure how fast the particle were traveling, he could not know its position. Nature would continually confound him; his information is doomed to be incomplete.

Psychology

It is not just the outer world that is saturated with ambiguity. Sigmund Freud was the first scientist to deeply explore the concept of the unconscious —mental processes that lie beyond our direct awareness. These range from metabolic processes like breathing to the complex motivations that underlie every day decisions. A century of research has established that most of human thinking is unconscious . Various experimental methods have been devised to explore the unconscious, from dream analysis to word association, Rorshach tests, brain scans, and more. Yet deciphering our unconscious thoughts remains elusive. Thus, not only must we must accept the ambiguities of the natural world, we must acknowledge it within ourselves.

Questions & Answers

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
what is titration
John Reply
what is physics
Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
what is the dimension formula of energy?
David Reply
what is viscosity?
David
what is inorganic
emma Reply
what is chemistry
Youesf Reply
what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
please, I'm a physics student and I need help in physics
Adjanou
chemistry could also be understood like the sexual attraction/repulsion of the male and female elements. the reaction varies depending on the energy differences of each given gender. + masculine -female.
Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Sahid Reply
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
what's motion
Maurice Reply
what are the types of wave
Maurice
answer
Magreth
progressive wave
Magreth
hello friend how are you
Muhammad Reply
fine, how about you?
Mohammed
hi
Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo Reply
Who can show me the full solution in this problem?
Reofrir Reply
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Source:  OpenStax, Sound reasoning. OpenStax CNX. May 31, 2011 Download for free at http://cnx.org/content/col10214/1.21
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