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True or false the magnetic poles are not located exactly at the geographic poles?
True. The magnetic poles move constantly.
Does the earth spin on its true poles or magnetic poles?
Magnetic poles
What is the name given to the difference between true north and magnetic north?
magnetic variation
Is it true that magnetic poles are defined by earths rotation?
No, it is not true. The magnetic poles may be influenced by Earth's rotation, but they are certainly not defined by it.
True or false Declination is the difference between true north and magnetic north?
true
What is magnetic bearing of line in theodolite survey?
The magnetic bearing of a line in theodolite surveying is the horizontal angle measured clockwise from the magnetic north direction to the line. This bearing is used to orient the theodolite and accurately measure angles during surveying work. It is important to account for magnetic declination when converting magnetic bearings to true bearings.
How does true north relate to sailing?
When sailing a course magnetic bearings are used. However there is a difference between magnetic north and true north called the magnetic variation, this changes year by year and can be a very significant figure depending on your position. It is important therefore to know this to ascertain ones true course.
Are ball bearings magnetic?
yes
What has the author Josiah D Knight written?
Josiah D. Knight has written: 'Vibration control in turbomachinery using active magnetic journal bearings' -- subject(s): Magnetic bearings, Journal bearings, Vibration damping, Actuators, Shafts (Machine elements), Strain gages, Turbomachinery
Where are magnetic bearings used and how do they work?
there aren't any, so there isn't any.
What do you mean by true course in navigation?
you can travel Magnetic or true courses ie magnetic north and true north. Magnetic north is by way of compass
How does a directional compass work?
The red needle points to magnetic north and the white points to magnetic south. The bearings tell what direction the next point is.
Latest trends to reduce friction?
One is magnetic bearings where there is little or no contact from the rotating shaft. Also magnetic levitation, as used in high speed trains.
How to convert a azmith reading?
If converting from grid to magnetic you subtract, if converting from magnetic to grid you add.
What is magnetic variation?
Since the Earth's magnetic poles are not located at the geographic poles, a magnetic compass doesn't point to 'true' (geographic) north. The DIFFERENCE angle between magnetic north and true north is the magnetic variation or declination where you are. It changes for different locations.
True or false the magnetic poles are not located exactly at the geographic poles?
True. The magnetic poles move constantly.
What is the Is the difference between true North and magnetic north?
magnetic variation
