... to be louder and higher pitched than a propelled aircraft. Jets are a serious annoyance to airfield workers and residents of communities near airports. Medical concern was expressed about the effect of sonic booms, which are produced each time a supersonic plane exceeds the speed of sound. An aircraft flies, the air rushing toward the plane should be deflected smoothly about the wing and in ... developed, the dominance of the monoplane was assured, although it did not become the design of choice until the 1930's. Cantilever wings obtain their entire strength from structural elements ins...

• Word Count: 2393
• Approx Pages: 10

... Australia to their favourite sports. Radio was very popular especially for sports like cricket and horseracing. Television further enhanced this popularity of sporting events with Australians able to watch their sporting hero's all over the world. Satellite has improved on television by providing ... we can watch a soccer game played in Spain between teams from Italy and France. The invention of the light bulb meant that games could use flood lights to light up huge areas such as a cricket or footy oval, allowing sport to play during the evening ... and night. This allows spectators w...

• Word Count: 1917
• Approx Pages: 8
• Grade Level: High School

... showed that individual atoms could be broken down and split into even smaller, subatomic particles. But perhaps one of the most shocking blows of uncertainty in the world of physics came from Werner Heisenberg. His "principle of uncertainty," stated that because the speed and position of an electron are impossible to know at the same time, it is therefore impossible to be able to predict ... was deeply impacted and affected by the Age of Anxiety. Similar to the authors of the time, artists of all kinds felt the need to express themselves in increasingly abstract and experimental ways. P...

• Word Count: 1360
• Approx Pages: 5
• Grade Level: Undergraduate

... especially in hot conditions or when used by inexperienced operators. Consequently machine guns would often be grouped together to maintain a constant defensive position. Estimates of their equivalent, accurate, rifle firepower varied, with some estimating a single machine gun to be worth as many as 60-100 rifles: a more ... hp engine, it could remain aloft for over three hours. By the end of the war aircraft were designed for specific tasks. Built for speed and manoeuvrability, the SE5a fighter of 1917 was powered by a 200 hp engine and had a top speed of 222 km/h (138 mph). Britain's m...

• Word Count: 1931
• Approx Pages: 8
• Grade Level: High School

... navy would be defeated but only after they had recorded record number victories. As was done in World War I the German Navy's first line of business was to limit the British resources. The first attack in engaging this campaign came not more than ten hours after Prime Minister Neville Chamberlains ... (MM-WEB). Their was a waiting period because of a number of factors, they had to wait to assemble the convoy, a longer route had to be taken, and the speed had to be reduced to match the slowest ship (MM-WEB). It took a long period of time but eventually the British convoy system became st...

• Word Count: 1770
• Approx Pages: 7
• Grade Level: High School

... leave the shooting to his gunner. The French army did attempt to form divisions for concentrated offensive operations, but not until the fall of Poland. However, only three divisions would be formed before the Germans struck; none had yet trained to the techniques demanded by fluid ... Army Group B advanced with incredible speed into the Low Countries. The Luftwaffe also crippled the Allied air effort with a series of pre-emptive strikes against 50 Allied airfields. Army Group B's invasion of the Low Countries forced the Allies" reaction and soon huge columns of Allied troops were pouri...

• Word Count: 2530
• Approx Pages: 10
• Has Bibliography

... displaced more than any other European battleship, below HMS Vanguard. Such armor gave the Bismarck many advantages in protection but it did not inhibit her speed, as she was only capable of its maximum speed of 30 knots. At the end of the First World War, German shipyards were forbidden to construct surface warships above 10,000 tones under the conditions charged by the treaty ... to block their route with the hope of destroying the massively armored ship. At the Battle of the Denmark Strait, Bismarck engaged and sunk the battle cruiser HMS Hood, which was the fastest and largest capit...

• Word Count: 979
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

... 't use their radios so they couldn't be detected. By November 22nd the striking force assembled at Kurie Island. The striking force was commanded by Vice Admiral Nagumo, which was consisted of 2 Fleet carriers, 2 light carriers, 2 carriers convented from a battleship and a crusier, 2 battleships, 2crusiers, a destroyer, and 8 supported ships. Four days later it sailed under cover with a storm that moved the same ... speed across the Pacific Ocean. The Japanese where guided to the target by a local radio station playing music. When the first wave arrived at Pearl Harbor the clouds opened ...

• Word Count: 773
• Approx Pages: 3
• Grade Level: High School

... were caught off guard. Another piece of pioneering technology that was invented was the "Tank." The Tank was designed early in the war but was deemed impractical, due to its lack of speed, inadaptability to various surfaces and its cumbersome design. However, Winston Churchill, head of navy, thought that the idea had ... potential and so he funded the development of the tank. It was two years after this that the Tank was ... dug in trenches. Stalemate had set in; exactly the same problem at the Western Front. Nothing had been achieved except the success of the evacuation of troops toward...

• Word Count: 3422
• Approx Pages: 14
• Grade Level: High School

... in 1980, tensions between the three main ethnic groups quickly mounted throughout the early 1980s. In1990, elections in Bosnia resulted in a governing group of three ethnically-based parties which corresponded to the three major ethnic groups. Muslims and Croats in the governing body favored independence for Bosnia-Herzegovina, ... Milosevic, had removed its members from the government. In March Serbian paramilitary forces, reinforced by the Serbian-dominated Yugoslav National Army, began a campaign of terror in eastern Bosnia. By early May the Yugoslav Army announced that it would withd...

• Word Count: 1460
• Approx Pages: 6
• Grade Level: High School

... the fifth Imperial division in support. The French army was in the back lines; they would almost be left behind in the battle because of the speed at which the Canadian army was advancing. The Canadians were led under Sir Julian Byng, which was somewhat ironic considering he was British. ... Alongside Byng would be General Currie, a Canadian soldier. This was a big promotion for Currie; in times of World War I the British did not consider Canadian soldiers "Fit enough to command anything larger than an infantry brigade"(McKee, p.25). Sir Julian Byng was ... giving them orders to the Bri...

• Word Count: 1785
• Approx Pages: 7
• Has Bibliography
• Grade Level: High School