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Contemporary Issues in Fluid Mechanics

            Police officers have unquestionably one of hardest jobs to do day in and day out. There really is no typical day in the office. Every day brings a different situation which makes the job so much more difficult. A routine traffic stop can turn into a shootout and an officer must be prepared to react in a split second. Sometimes, that might be the difference between life and death. Officers that work in prisons have challenging jobs. Prisoners are known to find and assemble dangerous contraptions that can pose as a threat toward prison officers. Therefore, officers require a need to be protected when situations like this occur. A groundbreaking discovery has been made to protect officers and the general population. The invention of a knife-proof vest that makes use of a shear-thickening non-Newtonian fluid leaves authorities assured that they are protected under many circumstances. .
             A knife stab can be very deadly. Approximately 1,500 people die each year from knives in the United States and that's five times more deaths than rifles accounted for in 2013 (Davis). Traditional body armor is exclusive to protect against one form of weaponry, usually ballistic or knife and stab wounds. Therefore, most attention put forth toward the design and engineering of knew forms of protection focus on solving just one half of the puzzle. It is proposed that there may be a solution to provide protection from both stab and ballistic wounds. A regular t-shirt is made from cotton. A knife can penetrate this material very easily which then leaves no barrier between that and your body. To help solve this problem involving deaths with knives, a shear thickening fluid has been created that can protect against knives and even ballistics to an extent.
             A shear thickening fluid has two components. It's a mixture of both a liquid and solid combined. The liquid component is polyethylene glycol (Wilson). Polyethylene glycol is a polymer commonly used in lubricates (Wilson).


Essays Related to Contemporary Issues in Fluid Mechanics

1. Quantum Mechanics

Philosophical Problems with The Theory of Quantum Mechanics & The Various Interpretations Quantum Mechanics As A Science ?... Thus Quantum Mechanics explains things differently. ... The founders of quantum physics wrestled with these issues. ... It is this contradiction between the wave function model and observed macroscopic events that is the source of the interpretation issue in Quantum Mechanics. ... Interpretations of quantum mechanics We consider the theory of quantum mechanics to be divisible into formalism and an interpretation. ...

  • Word Count: 3424
  • Approx Pages: 14
  • Has Bibliography
  • Grade Level: Undergraduate

2. Cold Temperature Induced Fracture

This suggested failure mechanism is further noted by the authors to involve a rather complex interplay of thermo-fluid mechanics of a ruptured pipeline, transfer of heat that is caused by the transfer of cold fluids escaping via a hole or crack, initiation and ultimate propagation of the crack, and finally, crack arrest (Shi Cheng Liu et al., 2006, p.324). The work of Andrews et al., (2010) further indicated the need for discussing issues of fluid flow as well heat transfer at the rupture point, fracture initiation , its arrest as full-bore propagation of fracture separately. ... And the h...

  • Word Count: 1647
  • Approx Pages: 7
  • Has Bibliography
  • Grade Level: Undergraduate

3. Quantum Mechanics

Quantum Mechanics is both very intriguing and very confusing. ... This answer is simple, classical mechanics is imperfect. Quantum mechanics apply to all matter, and so does classical mechanics except for on an atomic level, so the much easier classical mechanics are still used for larger matter even though they are altogether incorrect. There are many things that quantum mechanics can explain that classical mechanics cannot. ... In this way quantum mechanics explains something that classical mechanics never could. ...

  • Word Count: 579
  • Approx Pages: 2
  • Grade Level: Undergraduate

4. Popular Mechanics

Commentary on Popular Mechanics In Raymond Carver's short story Popular Mechanics, the meticulous focus on details is immediately obvious to the reader, whether it be the integrated symbols, the characterization, or even the title. ... From the first short paragraph of Raymond Carver's Popular Mechanics, the reader is left in suspense. ... Also, the word "mechanics" suggests machinery that is working and functioning properly. ... Therefore the title "Popular Mechanics" is suggesting the popularity of divorce due to the breaking down of the mechanics in relationships. ... Car...

  • Word Count: 1198
  • Approx Pages: 5
  • Grade Level: High School

5. The Challenge of Cultural Relativism

If we were to accept Cultural Relativism, "We could no longer say that the customs of other societies are morally inferior to our own" (Ethics: History, theory and Contemporary Issues 40). ... This idea could lead to serious issues. ... "We could decide whether actions are right or wrong just by consulting the standards of our society" (Ethics: History, Theory, and Contemporary Issues 40). ... Which leads to my next point: "The idea of moral progress is called into doubt" (Ethics: History, Theory, and Contemporary Issues 40). This ties into what I mentioned above ...

  • Word Count: 805
  • Approx Pages: 3
  • Grade Level: High School

6. Archimedes

He wrote important works on plane and solid geometry, arithmetic, and mechanics. ... Archimedes invented the compound pulley, which brought him great fame from his contemporaries. ... The first law of hydrostatics states that a body immersed in fluid loses weight equal to the weight of the amount of fluid it displaces. ...

  • Word Count: 795
  • Approx Pages: 3
  • Grade Level: High School

7. Newton

He also studied the mechanics of the astronomy of Galileo, which was said to attract him to study also studied Kepler. ... Newton's greatest achievement was his work in physics and celestial mechanics, which was in the theory of universal gravitation. ... However at that time, he did not have a correct understanding of the mechanics of circular motion. ...

  • Word Count: 2460
  • Approx Pages: 10
  • Grade Level: High School

8. Bernoulli's Principle

He investigated not only mathematic but also such fields as medicine, biology, physiology, mechanics, physics, astronomy, and oceanography. ... Bernoulli lectured there until 1732 in medicine, mechanics, and physics, and he researched the properties of vibrating and rotating bodies and contributed to probability theory. ... We will be investigating fluid dynamics but more on aerodynamics. ... Bernoulli's theorem implies, therefore, that if the fluid flows horizontally so that no change in gravitational potential energy occurs, then a decrease in fluid pressure is associated with an increa...

  • Word Count: 980
  • Approx Pages: 4
  • Grade Level: Undergraduate

9. Archimedes of Syracuse

In his treatise, On Floating Bodies, Archimedes states: "Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object.... The mechanics of the pump were a screw shaped blade inside a cylinder that could be turned by hand, this action would bring water from one side of the device and pump it out of the other side. ... His levers were developed with the mechanics of pulley systems that were used by his great cranes poised on the protective walls of the city of Syracuse. ... The written works of Archimedes have not surv...

  • Word Count: 1721
  • Approx Pages: 7
  • Grade Level: High School

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