Radio waves for Communication Radio waves are electromagnetic waves with wavelengths larger than the infrared light. Like all other electromagnetic waves‚ they travel at the speed of light. The wavelengths can vary from the size of a football field to the size of a football. They can be produced naturally by large stars and by lightning. Man-made radio waves are used for transmitting signals and currents. Specific Properties of Radio Frequency (RF) Current Radio frequency is the frequency of radio
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was broken down by Germans. The Germans believed that the boat had supplies for British‚ so they attacked the boat with their submarine. However‚ not only did the ship contain supplies but it had passengers riding the ship. At the time‚ President Wilson decided to not join the war and stay neutral‚ This was under the condition that the Germans never use unrestricted submarine warfare. After two years‚
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war. Woodrow Wilson the American president‚ tried to keep the U.S out of the war. Along with many American‚ he saw this as a European conflict‚ and wanted nothing to do with it‚ but few major events forced him to enter the war‚ on 1915 a German submarine sank a British ocean liner called the Lusitania and Nearly 1200 people‚ including 128 American civilians died. Therefore‚ the American claimed that it was Germany who attacked the Shipping. In 1917‚ the
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had lost had to give it’s territory to Belgium and Denmark‚ but most of them went to war. They had also lost their Chinese ports Pacific Islands‚ and African colonies during the war. The treaty said that Germany was not allowed armored vehicles‚ submarines‚ or aircrafts. It said that the German’s navy could only build to 6 battleships only. Germany’s overseas empire was taken away controlled now by the league of nations. 12% of Germany’s population became citizens of other countries. They were
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World War 1: The Effects of U-Boats and Machine Guns Growing tensions between world powers for dominance and resources helped bring about one of the deadliest wars in human history. It was the first major war in an industrializing world‚ and technology was beginning to grow exponentially. New weapons such as the machine gun‚ tank‚ U-boat‚ advanced lethal chemicals‚ and airplane completely changed the face of battle. The machine gun and U-boat ultimately had a larger strategic effect‚ but overall
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The American Civil War was the first war in which the participants communicated by telegraph‚ transported supplies and troops by train‚ and used ironclad warships‚ submarines‚ and mines in naval combat. A famous technology‚ the Minié ball came to prominence for being very easy to put down the barrel of a long rifled gun. The Minié ball was designed to expand while traveling along the rifle barrel‚ it increased muzzle
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remains radioactive (dangerous) for thousands of years and is currently stored in places such as deep caves and mines. 4. Storing and monitoring the radioactive waste material for thousands of years has a high cost. 5. Nuclear powered ships and submarines pose a danger to marine life and the environment. Old vessels can leak radiation if they are not maintained properly or if they are dismantled carelessly at the end of their working lives. 6. Many people living near to nuclear power stations or
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On May 7th‚ 1915‚ the German submarine‚ sunk the passenger ship ‘Lusitania”‚ which killed 1198 passengers‚ including 128 Americans‚ this incident provoked the government and the public. Wilson asked the congress to prepare the military‚ in case of a war while keeping the neutrality. Wilson
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As a result‚ the Deepsea Challenger was made. The Deepsea Challenger was a one-man submarine invented by filmmaker James Cameron in 2012. What made this innovation different from all other submarines was its design. An article called “Lights‚ Camera‚ Invention!” explains further‚ “Cameron’s design is an example of advance technology because it sits vertically in the water. This allows it to
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Hello‚ students of River Islands‚ Mrs. Kendrick‚ opposing and supporting gents. and ladies of River Islands‚ for the past few days I have been gathering evidence‚ a claim‚ and researching on why we need to stop‚ major sea exploration. For in response to any who try to convince me otherwise for the exploration of the sea is no‚ for if you are to go the depths of the sea imagine the negatives of exploring the ocean like‚ the risks of illness‚ the wasting of resources with ‚the population of trash
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