Wednesday, March 18, 2020

Free Essays on Road Not Taken

Choices are never easy and people face multitudes of them in their lifetime. Some decisions to these choices are clear while others are sometimes more difficult to achieve. The poem "The Road Not Taken" by Robert Frost is a first person narrative tale of a monumental moment in the speaker’s life- Frost can be considered the speaker. Frost is faced between the choice of a moment and a lifetime manifested in his poem. Walking down a rural road the narrator encounters a point on his travel that diverges into two separate similar paths. In Robert Frost’s poem "The Road Not Taken", Frost presents the idea of man facing the difficult unalterable predilection of a moment and a lifetime. This idea in Frost’s poem is embodied in the fork in the road, the decision between the two paths, and the speaker’s decision to select the road not taken. Man’s life can be metaphorically related to a physical journey filled with many twists and turns. Through out this journey there are instants where choices between alternate paths have to be made- the route man decides to take is not always an easy one to determine. The fork in the road represents the speaker’s encounter of having to choose from two paths a direction that will affect his the rest of his life ( ). Frost presents to the reader a moment in anyone’s life where an arduous problematic choice has to be made. There are an abundance of options in life man faces; Frost symbolizes this into the diverging of the two paths in his poem. The decision for which path to choose from can be hard to accept, just as the revelation of the choices. The two paths represent the options man has to choose from. Faced with these decisions, man has to weigh his options carefully to make an optimal choice. At the split in the road, the speaker looks far down both the two paths to see what each of the paths will bring. The speaker’s sight is limited- his eyes can only see the path until it bend... Free Essays on Road Not Taken Free Essays on Road Not Taken The Choice of the Road Not Taken Choices are never easy-people face many of them in a lifetime. Some choices are clear while others are sometimes more difficult. The poem â€Å"The Road Not Taken† by Robert Frost is a first person narrative tale of a monumental moment in the speaker’s life. This idea in Frost’s poem is the fork in the road, the decision between the two paths, and the speaker’s decision to select the road not taken. â€Å"The Road Not Taken† was written in a time when Frost himself had to make a choice in life, and his daring decision to take the road not taken. Robert Frost was born on March 26, 1874 in San Francisco. His father was William Frost, a Harvard graduate who was on his way westward when he stopped to teach at Bucknell Academy in Pennsylvania for extra money. His mother, Isabelle Moodie began teaching math at Bucknell while William was there, and they got married and moved to San Francisco. They were constantly changing houses, and William went from job to job as a journalist. About a year after moving to San Francisco, they had Robert. They named him Robert Lee Frost, after William's childhood hero, Robert E. Lee. Frost's father died from tuberculosis at age thirty-four, in 1885. Isabelle took Robert and his sister back east to Massachusetts. Soon they moved to Salem, New Hampshire, where there was a teaching opening. Robert began to go to school and sit in on his mother’s classes. He soon learned to love language, and eventually went to Lawrence High School, where he wrote the words to the school hymn, and graduated as c o-valedictorian. Frost was then sent to Dartmouth College by his controlling grandfather, who saw it as the proper place for him to train to become a businessman. Frost read even more in college, and learned that he loved poetry. In 1912, at the age of 38, he sold the farm his father had passed to him and used the proceeds to take his family to England, where he could devote h... Free Essays on Road Not Taken Choices are never easy and people face multitudes of them in their lifetime. Some decisions to these choices are clear while others are sometimes more difficult to achieve. The poem "The Road Not Taken" by Robert Frost is a first person narrative tale of a monumental moment in the speaker’s life- Frost can be considered the speaker. Frost is faced between the choice of a moment and a lifetime manifested in his poem. Walking down a rural road the narrator encounters a point on his travel that diverges into two separate similar paths. In Robert Frost’s poem "The Road Not Taken", Frost presents the idea of man facing the difficult unalterable predilection of a moment and a lifetime. This idea in Frost’s poem is embodied in the fork in the road, the decision between the two paths, and the speaker’s decision to select the road not taken. Man’s life can be metaphorically related to a physical journey filled with many twists and turns. Through out this journey there are instants where choices between alternate paths have to be made- the route man decides to take is not always an easy one to determine. The fork in the road represents the speaker’s encounter of having to choose from two paths a direction that will affect his the rest of his life ( ). Frost presents to the reader a moment in anyone’s life where an arduous problematic choice has to be made. There are an abundance of options in life man faces; Frost symbolizes this into the diverging of the two paths in his poem. The decision for which path to choose from can be hard to accept, just as the revelation of the choices. The two paths represent the options man has to choose from. Faced with these decisions, man has to weigh his options carefully to make an optimal choice. At the split in the road, the speaker looks far down both the two paths to see what each of the paths will bring. The speaker’s sight is limited- his eyes can only see the path until it bend...

Monday, March 2, 2020

Pressure Definition, Units, and Examples

Pressure Definition, Units, and Examples In science, pressure is a measurement of the force per unit area.  The SI unit of pressure is the pascal (Pa), which is equivalent to N/m2  (newtons per meter squared). Basic Example If you had 1 newton (1 N) of force distributed over 1 square meter (1 m2), then the result is 1 N/1 m2 1 N/m2 1 Pa. This assumes that the force is directed perpendicularly toward the surface area. If you increased the amount of force but applied it over the same area, then the pressure would increase proportionally. A 5 N force distributed over the same 1 square meter area would be 5 Pa. However, if you also expanded the force, then you would find that the pressure increases in an inverse proportion to the area increase. If you had 5 N of force distributed over 2 square meters, you would get 5 N/2 m2 2.5 N/m2 2.5 Pa. Pressure Units A bar is another metric unit of pressure, though it is not the SI unit. It is defined as 10,000 Pa. It was created in 1909 by British meteorologist William Napier Shaw. Atmospheric pressure, often noted as pa, is the pressure of the Earths atmosphere. When you are standing outside in the air, the atmospheric pressure is the average force of all of the air above and around you pushing in on your body. The average value for the atmospheric pressure at sea level is defined as 1 atmosphere, or 1 atm. Given that this is an average of a physical quantity, the magnitude may change over time based on more precise measurement methods or possibly due to actual changes in the environment that could have a global impact on the average pressure of the atmosphere. 1 Pa 1 N/m21 bar 10,000 Pa1 atm ≈ 1.013 Ãâ€" 105 Pa 1.013 bar 1013 millibar How Pressure Works The general concept of force is often treated as if it acts on an object in an idealized way. (This is actually common for most things in science, and particularly physics, as we create idealized models to highlight the phenomena we way to pay specific attention to and ignore as many other phenomena as we reasonably can.) In this idealized approach, if we say a force is acting on an object, we draw an arrow indicating the direction of the force, and act as if the force is all taking place at that point. In reality, though, things are never quite that simple. If you push on a lever with your hand, the force is actually distributed across your hand and is pushing against the lever distributed across that area of the lever. To make things even more complicated in this situation, the force is almost certainly not distributed evenly. This is where pressure comes into play. Physicists apply the concept of pressure to recognize that a force is distributed over a surface area. Though we can talk about pressure in a variety of contexts, one of the earliest forms in which the concept came into discussion within science was in considering and analyzing gases. Well before the science of thermodynamics was formalized in the 1800s, it was recognized that gases, when heated, applied a force or pressure onto the object that contained them. Heated gas was used for levitation of hot air balloons starting in Europe in the 1700s, and the Chinese and other civilizations had made similar discoveries well before that. The 1800s also saw the advent of the steam engine (as depicted in the associated image), which uses the pressure built up within a boiler to generate mechanical motion, such as that needed to move a riverboat, train, or factory loom. This pressure received its physical explanation with the kinetic theory of gases, in which scientists realized that if a gas contained a wide variety of particles (molecules), then the pressure detected could be represented physically by the average motion of those particles. This approach explains why pressure is closely related to the concepts of heat and temperature, which are also defined as motion of particles using the kinetic theory. One particular case of interest in thermodynamics is an isobaric process, which is a thermodynamic reaction where the pressure remains constant. Edited by Anne Marie Helmenstine, Ph.D.