Analysis of Unforeseen Results of Technological Advance Essay -- Techn

Throughout history technology and technological advances have shaped our lives, our culture and our world. Everyday new technologies are being created that change our world, both for the better and for the worse, both expected and unexpected. Since there have been technological advances, there have been unexpected consequences of those advances. Advances like the stirrup, the industrial revolution, mass production, the clock, advances in medicine and domestic technology have all had unanticipated consequences which have had profound effects on our society, and our planet. Around the Dark Ages the stirrup came to Europe. It was brought by nomadic Asian tribes as they travelled west. First accepted by the Frankish tribes, it allowed for the first use of effective heavy cavalry. Before this it was too difficult to balance on horse back with heavy armour, so cavalry was limited to mainly reconnaissance and scouting. Heavy cavalry quickly became a powerful weapon for medevil kings, and this eventually brought about the invention of knights. Knights were used as shock tactics, they would charge enemy lines and send them into disarray. This tactic became extremely effective. With the invention of knights came the Feudal System. The Feudal System was basis of Medevil European society. Kings would award land to people in return for the service of a knight for a certain amount of time each year. This way the king would have access to knights and people would be able to acquire land in return for them. Although the stirrup was originally just used for better su pport while on horse back, it unexpectedly brought about the invention of the greatest weapon in Medevil Europe and with them, the basis for European society at that time. During t... ...the advances did was make the work less physically demanding, that meant that women did not need the help of men and children to do the work, all the advances did was make housework more efficient, but just as time consuming as before. Women still hard the bulk of the household workload and were for the most part not free to pursue careers. In conclusion, it is evident that throughout history technological advances have produced unexpected consequences for the world. Examples like the stirrup, the industrial revolution, mass production, the mechanical clock, medical science and the birthing process, and domestic technology have shown that there are serious social, economic, and cultural consequences that may arise. It also shows that we can expect more unanticipated consequences as we continue to make more and more technological advances in all aspects of science

From Gas To Rust

Attach a vertical strip of masking tape to the side of each of your test tubes for marking the water level)and using the permanent marker, make a mark on the tape about 1 CM down from the mom the of the test tube. This will be the outside water level. 4. Tear off enough steel wool to make a ball about 2. 5 CM in diameter. Use a p encircle to push the steel wool down to the bottom of a test tube. Repeat for a total of three test tubes with steel wool. 5. Rinse all of the test tubes (three with steel wool and three without) by filling the test tubes with water, allowing the water to sit there for 1 minute, and then pouring the water out.This step will dampen the tell wool in the three tubes that have it thus making sure there is enough water present for the oxidation reaction. Treating the the ere test tubes without steel wool the same way ensures that all variables are controlled. 6. Turn all six of the test tubes (three with steel wool and three without) upside e down and mount them over the jars so that the water level is at the starting mark you made in step 3 on each test tube. 7. You may want to cover your entire setup with a big plastic bag to minimize evaporation. Be careful not to knock the test tubes when covering and uncovering. Check at least daily, and write your observations down in your lab notebook k. Carefully mark the water level on the tape on each test tube. 9. When the water level is no longer changing in the test tubes, you're ready t o analyze your results. 10. Measure the difference in water level between the open end of the test TU be and the water height inside the test tube at the end of the experiment. For how many tubes did the water level change? For t hose that did: Calculate the volume that corresponds 2 to this difference the total starting volume of air in each test tube.Volume of a cylinder: V=nor h Remember, for tubes containing steel wool, the wool will displace most of the air. Make sure your measure ants and calculations tak e this into account. 1 1 . Calculate the proportion of oxygen in each test tube. Average the proportion on of oxygen from all the test tubes with steel wool. How does this compare with the value for percentage of oxygen in the air that you found in your background research? Background Information The goal of this experiment is to measure the percentage of oxygen in air Sam peels and this reject will show an interesting way of doing that.The method depends on at mesospheric pressure and a chemical reaction that removes oxygen from the air. I will find out what kind 0 f chemical reaction can remove oxygen from the air. Oxidation of iron, also known as rusting, will do t he trick. Exposed iron will rust in the presence of oxygen and water. I will study this chemical reaction a ND I'll see that oxygen becomes combined with the iron atoms and water to create iron oxides. I thin k this meets middle school grade level expectations because it enables me to understand the term s and concepts : atmospheric pressure, oxidation of iron and the layers of the atmosphere.The question I am asking is why does the water level eventually stop rising? I wanted to know how much oxygen is in the air and how much of it we consume when we bread the every day. Well this project shows an interesting way of finding out. The atmosphere contains the oxygen we need to breathe to support cellular respiration, the metabolic process that provides the e chemical energy necessary for life. This makes my project possible and yet at the same time ca vitiating. I'm going to SE test tubes to measure the percentage of oxygen in my air sample.This is what gave me the idea to do this science experiment. Variables The independent variable was the varying types of metal: steel, copper, and iron. The dependent variable was the amount on rust on each sample. The control fifths experiment is the surrounding air. The constants in this experiment are the type of test tubes used, the time each metal spent subm erged in water, the water in each bottle/jar, and the temperature of the surrounding air. Graph Data Table Types of Metal Trial 1 Trial 2 Trial 3 Average Copper ml ml mm 21. Ml ml gorgon ml 28. Ml Steel Wool ml mm mm L 34. Ml Hypothesis If the metal rusts, then the level of the water in the measuring beaker will decrease. Conclusion My hypothesis was if the metal rusts, then the amount of water in the measuring beaker will decrease and it was correct. My data supported my hypothesis because as the metals developed rust, the amount of water in the measuring beakers decreased. The average for the copper was 21. 3. The average for the iron was 28. 7 and the average for the steel wool was 33. 7. The copped water level decreased the most and the steel wool decreased the least.My question, why does the water eventually stop rising was answered. I found out that the water level decreased because of evaporation. Reflection loved working on the project but what I enjoyed the most about it wa s making g the test tubes. My data made sense because its shows the water level decreasing for each metal like I said it would in my hypothesis. Now that I have finished my experiment have new questions such h as what would happen if collected air samples at high altitude, and then tested them at low altitude or vice versa).If I ever took a vacation in the mountains, I can use this method to compare oxygen el veils in the air at high and low altitude. I could try doing this experiment at high altitude and comparing t he results with same experiment done at a lower altitude. Can use this procedure to detect decree seed oxygen content in exhaled air. Then I could do background information and find out how much oxygen we consume when we breathe. I think this method is sensitive enough to detect the difference an d would provide me with more accurate data.

`` The Drifter Loneliness And The Feeling Of Being...

â€Å"The Drifter† Loneliness and the feeling of being unwanted is the most terrible poverty. The whole conviction of life rests upon the belief that loneliness, far from being a rare and curious phenomenon, is the central and inevitable fact of human existence. There was a time when vets were greeted as heroes, Cities and towns held parades to honor the soldiers who fought for freedom and the sacrifices they made to make the world a better place. Homecoming for Vietnam was very different. No victory parades or welcome rallies, instead people hated one another, and the men our government sent to protect and fight for a cause that wasn t right. Alfred Van Whitmer is an example of this. He feels as if he’s alone, no one willing to accept†¦show more content†¦In a heartbeat, he rushes to the rescue, with his experience in war, he has the edge in combat. He’s walking at a very fast pace and hits him with a left hook, knocking him down instantly. He climbs on top of him, taking out all of his frustration and anger while beating the life out of him. The young girl tries to stop him but he hits her as well. â€Å"You really are a special kinda stupid are you, what the hell is wrong with you!.† The young girl says. She sits down beside him, in tears. His face was swollen and covered in blood, it was as if he were run over by a car. Alfred looks down and sees a very elegant and stylish fedora, and inside was money, a couple thousand from the looks of it. Inside his hat neatly clipped and well hidden. He realizes that this man was a pimp, a gangster who uses women for profit. He didn t understand why this young girl was infatuated with this man, who in his eyes is a despicable human being. In disgust he walks away, and blends in with another crowd. Ignores the young girl and walks away. The next day, Alfred is in his apartment, contemplating about the event that just occurred. He can t stop thinking about it, to the point where he doesn t sleep the entire night. The next day, Alfred comes by a building, this building is known as the headquarters for Mike Mansfield, a conservative democrat who’s running a campaign for the U.S Senate. It was located on 50th street and broadway, a building littered with american