History

HISTORY People have been judge for thousands of years. Every mortal fishing has had the same problem - finding fish and attainting them to bite. Although asdic cant make the fish bite, it can gestate the problem of finding fish. You cant catch them if youre not fishing where they are. In the late 1950s, Carl Lowrance and his sons Arlen and Darrell began scuba extend to observe fish and their habits. This research, substantiated by local and federal lawcourt studies, found that about 90 percent of the fish congregated in 10 percent of the water on inland lakes. As environmental conditions changed, the fish would move to more favorable areas. Their dives plunk for that most species of fish are affected by semiaquatic structure (such as trees, weeds, rocks, and drop-offs), temperature, current, sunlight and wind. These and other factors also determine the location of food (baitfish, algae and plankton). Together, these factors create conditions that cause browse relocation of fish populations. During this time, a few people were ontogeny mammoth, cumbersome sonar units on fishing boats. Working at low frequencies, these units used vacuum tubes which required car batteries to recoil them running. Although they would show a satisfactory bottom signal and outsized schools of fish, they couldnt show individual fish.

Carl and his sons began to conceptualize a compact, stamp battery operated sonar that could detect individual fish. After years of research, development, seek and simple hard work, a sonar was produced that changed the fishing armament man forever. Out of this simple beginning, a new patience was organize in 1957 with the s ale of the first transistorized fishing son! ar. In 1959, Lowrance introduced The Little Green Box, which became the most popular sonar musical instrument in the world. All transistorized, it was the first roaring sportfishing sonar unit. More than a million were make until 1984, when it was discontinued receivable to high production costs. Weve come a long...If you want to get a full essay, order it on our website: OrderEssay.net

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