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What is the name of an old Greek instrument that helps people find their way at sea?
compass
What navigational tools did john Cabot use?
His Navigation tools were the magnetic compass,the log,the lead line,the quadrant or ustrolube, and dead reckoning.
What is the name of each line in basketball?
Center Court Line, Free Throw Line and Base Line.
Why is a compass called a compass?
Answer 1. Nobody really knows.Many years ago there was a verb in English ; to compass. It had several meanings which included "to measure a distance". Its origin was well known, from the Latin "to measure a distance by pacing it out". There are several archaic meanings, all of which are now expressed by the verb 'to encompass' q.v.So far so good ; "to compass" has no mystery about it. What nobody can work out is how we got from the verb to the noun. A compass doesn't seem to have any connection with "to include" or "to pace out", and none of the verb meanings have anything to do with direction. Go figure.Answer 2. Additionally:It doesn't have to do with direction. The compass (compasses) is a bi-pole that's why it is defined as "a pair of compasses". It has to do with the line definition (two points define a line).Answer 3. The second answer serves to further confuse a question which already confuses many people. The original answer only answered the question, which was "why is a compass called a compass ?" ; the answer assumed that the questioner knew what a compass was, and dealt only with the etymology of the word. Well, here's the answer to what the original questioner didn't ask.A compass has everything to do with direction. It is a device to indicate the direction of magnetic north, which navigators or surveyors can correct to true north by using tables of "magnetic variation". Local values of the variation are usually printed on the sides of maps and charts.A pair of compasses has nothing to do with direction. It is simply a pair of dividers with one of the points replaced by something that draws. It is used to describe an arc or draw a circle. Calling it "a compass" is now such a common solecism that some people don't even know what "a pair of compasses" is.The compass of something is the range, domain or extent of that something. To understand this meaning exactly look up "encompass" in a good dictionary. To clear the last bit of confusion, two examplesWas the compass swung ? - Has our magnetic compass been adjusted ?What is the compass of our charts? - What area is covered by them ?
What is the easiest way to draw a 5 pointed star?
Draw a horizontal line wider than your star, using a ruler to make it absolutely straight. Draw an intersecting vertical line taller than your star and forming a right angle. Label the intersection "A." 2 Open the compass so the measurement is half the size that you want your star. Put the point of the compass on mark "A." Make a circle with the compass that cuts through all the lines. Mark the spot that it intersects on the upper part of the vertical line as "B." 3 Mark any point on the horizontal line between the edge of the circle and point "A." Label this as "C." 4 Adjust the compass so the pencil touches point "B" and the point of the compass touches "C." Make an arc that intersects the horizontal line on the other side of point "A." Mark it as "D." 5 Measure the distance from point "C" to "D." Use a ruler and this measurement. Start at point "B" and draw a line from there to the edge of the circle, on the inside. This is called a chord. Make a second line of the same distance from that point to a other spot on the circle. Do this all the way around until you are back to the original point. You now have a pentagon. 6 Use a straight edge to connect every other corner of the pentagon. Start at point "B" and continue until corners are connected. This forms a pentagram, a perfect five pointed star.
What is the name of a line with which a compass aligns?
A needle
1 What is the name of the line with which a compass aligns?
The name of the line for the compass alignment is the index line. The line and the numbers around the outside edge can be used to plot a course to a distant object.
What is the name of the line which a compass align?
A needle
What magnetized steel needle that aligns with the magnetic of the earth is a?
A compass needle is a magnetized steel needle that aligns with the Earth's magnetic field. Its use allows for determining directions such as north, south, east, and west.
How does a needle on a compass align itself?
A needle on a compass aligns itself with the Earth's magnetic field. The needle is magnetized, with one end pointing towards the Earth's magnetic north pole and the other end pointing towards the magnetic south pole. This alignment allows the needle to point in the direction of magnetic north.
What is the moveable bar in a compass called?
The movable bar in a compass is called the compass needle. It is typically a thin magnetized bar that aligns with the Earth's magnetic field to indicate direction.
What makes compasses point to the North pole?
Magnetism. The compass aligns with the magnetic field of the Earth.
What are the parts of magnetic compass?
The main parts of a magnetic compass include the magnetic needle, which aligns with the Earth's magnetic field to indicate direction, and the compass housing, which protects the needle and contains the compass card with directional markings. There is also a lubber line, which is used to read the compass card, and a bezel ring for adjusting the compass heading.
Does a compass contain a magnet?
Yes, a compass typically contains a magnetized needle that aligns itself with the Earth's magnetic field to point towards magnetic north.
Which compass is pointing in the correct direction?
The compass that accurately aligns its pointer with the Earth's magnetic field is pointing in the correct direction. This ensures that it provides accurate readings for navigation.
Which metals do not effect a compass?
Metals like aluminum, stainless steel, and gold do not affect a compass because they are not magnetic. The compass needle aligns with Earth's magnetic field, so nonmagnetic metals do not interfere with its functionality.
Is the magnet in a compass a permanent magnet or a electromagnet?
The magnet in a compass is a permanent magnet. Its magnetic field aligns with the Earth's magnetic field, allowing the compass needle to point north.
