Coduction Convection Radiation :: essays research papers

Conduction, Convection, and light beamHeat transfer is the way estrus moves through matter tochange the temperature of other objects. There are three types of kindle transfers, Conduction, Convection, and Radiation. The firstkind of heat transfer, conduction, is heat transferring throughdirect contact of materials. This would be the same thing as a panon the stove. The heat from the stove touches the pan directly,therefore reservation the pan hot. The next type of heat transfer isconvection. Convection is heat transferred by a gas or liquid. much(prenominal) as dumping hot water into a cold glass of water, making thewater overall warmer. The last type of heat transfer is radiation. Radiation is when the heat energy travels in actual waves. Thesuns energy gets to earth because of radiation.These three types of heat transfer can be easily found in theactivities we behave been doing the past couple of weeks having todo with a universal dwelling. They can mostly be seen when weare trying to test the heating and cooling capabilities of ouruniversal plaza model. Conduction can be seen when the icetouched the cans full of insulation. The cooled cans touched theinstallation inside the can making it cooler. Convection can befound al over the place in our experiments. When we heated ourmodel dwelling with the heat lamp the outside of the househeated. This in lick heated the air inside making the airtemperature rise. Also, when we put the insulation cans in warnwater the water heated up the can. And lastly, in the insulated canexperiments, both cooling and heating, when the canstemperature was changed it in turn changed the air temperature

John Brown :: essays research papers

How the Actions of Governor Wise and the State of Virginia in the Case of John Brown may be advantageously Justified.After months of planning, John Brown and his twenty-one &8220soldiers marched into the strategically located town of Harpers Ferry with the goal of starting a slave revolt which would lead to the abolishment of the institution of slavery. Within hours Brown and his followers had taken several hostages, and gained control of the armory, the arsenal, and the engine house. The following days consisted of skirmishes with the towns people and the arrival of the United States Marines. After a brief confrontation the Marines easily captured Brown and his few surviving followers. On October 27 the trail of John Brown began. Only five days afterwards the trial came to a rapid conclusion, with the jury finding Brown guilty on all charges. Two days later Brown was sentenced to death. His execution followed on the dot one month later, on December 2nd. Clearly, Governor Wise a nd the state of Virginia acted justly and fairly when they tried John Brown and executed him for his deeds at Harpers Ferry.John Brown was born on May 9, 1800 in Torrington Connecticut. When he was about five years old, his father moved the family to Hudson Ohio. There, John was filled with the minacious anti-slavery sentiment that was present in that area. This, combined with personal observations of the maltreatment of blacks and the influence of Calvinism, started John Brown on his crusade to abolish slavery. While still life-time in Hudson he married Dianthe Lusk and began to raise a large family. To support his family he worked as a farmer, tanner, and surveyor. In 1849, John Brown moved with his entropy wife Mary Ann Day, and their seven children to North Elba. He planned to aid the free blacks living in Garrit Smith&8217s colony, dubbed &8220Timbucto, adjust to the hardships of farming in the Adirondacks. After realizing the impossibility of this task, John left, and follo wed the abolitionist movement to Kansas where five of his sons were already stationed. Here in Kansas, Brown continually struggled to become financially secure, but gained &8220a reputation as a ferocious opponent of slavery (John Brown&8217s Raid). This reputation was greatly enhanced when Brown and his sons led a brutal mission against the proslavery population, which resulted in five innocent proslavery settlers being mutilated and murdered. After staying in Kansas for a while longer, Brown returned to the North where he gave many speeches and fund heave meetings based on the abolishment of slavery.