I. Introduction: Airplanes are vehicles that are used as air transportation. The airplane was invented by Wilbur and Orrville Wright. The invention happened during the early 1900’s.
II. Discovery: ever since the kite was first invented in china around 400 B.C. humans have always been thinking about flight. Leonardo da Vinci made the first real studies about human flight in the 1480’s. Da Vinci had over 100 drawing and illustrations of ideas about human flight like a bird. His drawings illustrated the wings and tail of a bird for a human carrying machine. The Ornithoper was one of Da Vinci’s best flight illustrations. The helicopter was based right off of the illustration of the Ornithoper machine. In 1783, Joseph Michael and Jacques Etienne Montgolfier were the first people to invent the hot air balloon. They used smoke from a fire to blow hot air into a silk bag. The hot air rose and then lifted the balloon and made it lighter than air. The first pass3engers were roster sand sheep’s, the balloon reached a height of 6,000 feet and traveled more than a mile. Sir George Cayley is considered the father of aero dynamics, he invented the first glider and for 50 year he kept experimenting with the design of the wing. Cayley was to first one to notice that a flight machine would need machine power if it was going to be in the air for a long period of time. German engineer Otto Lilienthal was the first person to fly a glider for a long period of time in 1981. He completed nearly 2500 flights until on flight there was a sudden gust of wind on his landing and he crashed and died. In 1891 Samuel Langley created a model of a plane called an aerodrome that he use large whirling arms and stream power. The aerodrome went 3/4s of a mile until it ran out of fuel. Orville and Wilbur Wright spent many learning about all of the earlier developments of flight. After many test of finding the right glider that would consistently fly in the wind tunnels and in the North Carolina outer banks dunes, they turned their attention to create a propulsions system that would create the lift needed to fly. The early engine they used created almost 12 horsepower. The flyer lifted from level ground to the north of big kill devil hill on December 17, 1903. Orville was the one that piloted the plane. The plane weighed 605 pounds and traveled 125 feet in 12 seconds. This flight was the first heavier than air flight ever. In 1909, the U.S government bought its first airplane. It was a Wright brother’s biplane; they bought the plane for $25000 plus a bonus $5000 because it exceeded 45 mph. in 1911, the Wright brothers Vin Fiz was the first plane to fly across the United States of America. This flight took 84 days stopping a total of 70 times; it crash landed so many times that nearly any of the parts are still remaining. In 1912, the Wright brothers created the first armed airplane. The airplane had a machine gun attached; it was flown at the airport in college park, Maryland. The airport had existed since 1909 when the Wright brothers took their government purchased airplane there to teach army officers to fly.
III. Biography of investigator: Wilbur and Orville Wright were the two sons of Milton Wright, a bishop of the united brethren in Christ. Wilbur was born on April 16, 1867 in Millville, Indiana. Orville was born august 19, 1871 in Dayton, Ohio. Orville was full of ideas and enthusiasm and Wilbur was more of mature of habits and more likely to see a project through. While in high school, Wilbur intended to go to Yale and study to be a clergy man; but he suffered a facial injury while playing hockey and that prevented him continuing his education. For the next three years Wilbur continued his education by reading in his father’s large library. In 1892 they opened a shop in Dayton called Wright cycle shop, so when the Wright brothers changed their focus to flight they already had knowledge of how to build machines. The Wright brothers decided to educate themselves in the world of light when Otto Lilienthal died in 1896 due to one his glider tests. In 1909 the Wright brothers opened up the American Wright company, and in 1912 Wilbur died. Orville turned over the firm after Wilbur’s death and turned over manufacturing to experimental work. Orville then worked for NASA until his death in 1948.
IV. Impact on the world/humanity: the invention airplanes changed many things in human life. It made very long distances of transportation very easy by flying. It made an entire new style and advantage of how to fight wars. It made easy access to use massive bombs in wars. In all was it was a very useful device both transportation and war.
V. Journal Article Review: the wirght brothere ideas in flight ffirst came to a spark when otto lienthiel died on one of his glider test. They made one aircraft annd contiuosley test and rebuilt untill it was functoining perfectly. The wright brothers made history with the flyer 1. By october 1905 they made the flyer 1 able to fly ffor 30 minutes. They brothers continued to design and sell aircraft to foriegin government untill they both died.

References
Bellis, M. (n.d.). The Wright Brothers - First Flight of an Airplane. Inventors. Retrieved October 14, 2010, from http://inventors.about.com/od/wstartinventors/a/TheWrightBrother.htm
Early History of Flight - Kites - Hot Air Balloons - Early Gliders. (n.d.). Inventors. Retrieved October 14, 2010, from http://inventors.about.com/library/inventors/blearlyflight.htm
Wright Brothers Biography - life, story, death, school, young, information, born, contract, house, time. (n.d.). Encyclopedia of World Biography. Retrieved October 14, 2010, from http://www.notablebiographies.com/We-Z/Wright-Brothers.html