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Q: Why is sonar a more accurate method than lead and line?
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What is the most important advantage of sonar bottom profiling ocer the older method of lead-line soundings?

The use of sonar is sending out sound waves out and by measuring the echo that comes back to determine if something is present. This is superior to the old way of lead line because the line had a much smaller range of picking up sounds.


What was used before sonar?

Before sonar, there were applications where individuals actually "listened to the water" with different devices. It was largely impractical for any kind of "real science" or "real military" applications, and probably was viewed as a novelty. But the first submarines were equipped with a crude (by modern standards) sonar, so the technology developed with the military need for it.


Can a linear trend line can be obtained by using a least square method rather than a scatter diagram method?

A scatter diagram will give a quick but rough extimate of the trend line - especially if there is a lot of variation about the trend. The least squares method will be more accurate.


What is the instrument used to measure the depth of sea called?

The simplest and older - shot-line. For faster and more accurate work, especially in deep water, sonar is used now; its simplest form being the echo-sounder.


What did oceanographers use to map ocean floors back then before sonar was made?

Back in the day, sailors would head out on the ships and tie a lead sinker to a line to measure the ocean floor. Hope this helped!! ;)


What is a basic harness to lead a horse around?

A halter and lead line. The halter is placed around the horse's head and the lead line is clipped on to the halter so you can lead your horse with the lead line. Lead line=Same as lead rope ;)


Line of sight method?

Line of sight is a method that is used in schools. This method is to see a image of a object.


How do you say dream on in Spanish?

I'm positive it's Sonar with a curvy line on top of the n.


What is the center line method?

Centre line method:This method is suitable for walls of similar cross sections. Here the total centre line length is multiplied by breadth and depth of respective item to get the total quantity at a time. When cross walls or partitions or verandah walls join with main wall, the centre line length gets reduced by half of breadth for each junction. Such junction or joints are studied carefully while calculating total centre line length. The estimates prepared by this method are most accurate and quick.


What is the fastest depreciation method?

straight line method


Who invented assembly-line method of production?

Henry Ford invented the assembly-line method of production


Is the brant line accurate?

I think the cat ate the brant line