# How Do Fishfinder Arcs Work?

Fish finders are used on boats to help fishermen locate the best areas on the waterways to gain a catch. The fish finder uses sonar to send a series of sound arcs through the water, providing a vis... Read More »
http://www.ehow.com/facts_7361544_do-fishfinder-arcs-work_.html

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## How to Calculate Arcs?

An arc is part of the circumference of a circle. The measurement of an arc yields its length if laid out straight. Measurement of an arc is important for various reasons, as in construction project... Read More »
http://www.ehow.com/how_6398773_calculate-arcs.html

## How to Find the Measure of Arcs?

Arcs are circular lines found on the perimeter of circles. They range in size from 0.1 degrees to 360 degrees. In mathematics, there are two ways of measuring the arc. You can either use basic mate... Read More »
http://www.ehow.com/how_8136223_measure-arcs.html

## Who invented the fishfinder?

The fish finder was invented in 1959 by Carl Lowrance and his two sons, Arlen and Darrell. The Lowrances fish finder was called the "Little Green Box" and it was the first portable sonar unit. From... Read More »

## How to Use a Furuno Fishfinder?

A Furuno fishfinder uses sonar waves to provide information about what is beneath your boat. The device's display unit reports this information after the waves bounce back to the unit. Furuno offer... Read More »
http://www.ehow.com/how_7374025_use-furuno-fishfinder.html

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