Construction of a magnetic compass Magnetic needle A magnetic rod is required when constructing a compass.

Such devices were universally used as compass until the invention of the box like compass with a 'dry' pivoting needle sometime around 1300.

A lubber line , which can be a marking on the compass bowl or a small fixed needle, indicates the ship's heading on the compass card.

The typical Chinese navigational compass was in the form of a magnetic needle floating in a bowl of water.

Key points on the compass, including the north end of the needle are often marked with phosphorescent, photoluminescent, or self luminous materials to enable the compass to be read at night or in poor light.

One first reads the scale that shows the angle subtended by the lid of the compass, and then depending on the colour shown (red or black) the end of the compass needle with the corresponding colour.

The force on the compass needle did not direct it to or away from the current carrying wire, but acted at right angles to it.

This individual zone balancing prevents excessive dipping of one end of the needle which can cause the compass card to stick and give false readings.

After pointing the DOT arrow on the baseplate at the target, the compass is oriented so that the needle is superimposed over the orienting arrow in the capsule.

As he was setting up his materials, he noticed a compass needle deflected from magnetic north when the electric current from the battery he was using was switched on and off.

Threading the Fiscal Needle

He was afraid of the needle.

Access to needle and syringe programmes

Bearing compass A bearing compass is a magnetic compass mounted in such a way that it allows the taking of bearings of objects by aligning them with the lubber line of the bearing compass.

Sami didn't know what Layla's needle contained.

Sami pulled a needle out of his pocket.

A compass deviation card is prepared so that the navigator can convert between compass and magnetic headings.

We are coming out of 50 years, most unusual years, of history in which we have had a totally mono polar world, in which every compass needle for or against has to be referenced by its position to Washington a world bestrode by a single colossus.

I told him, bear with me on the needle.

A similar process is used to calibrate the compass in light general aviation aircraft, with the compass deviation card often mounted permanently just above or below the magnetic compass on the instrument panel.

Compass point names The names of the 32 wind compass rose follow these rules The cardinal directions are North (N), East (E), South (S), West (W), at 90 angles on the compass rose.

The needle method has the advantage that the needle can be placed at the bottom of the flask to better flush out the atmosphere of the flask.

Electoral Compass USA Electoral Compass USA, developed in cooperation with the Wall Street Journal, was presented on January 2, 2008.

It is like looking for a needle in a haystack.

A magnetic needle is placed parallel with the copper strip.

It's got a needle, like a record needle, that goes back and forth over the surface, bumps up and down, and feels the height of the first surface.

Because your choice now is either I use my own needle now, or I could share a needle now and get a disease that's going to possibly kill me 10 years from now, or I could use my own needle now and go to jail tomorrow.

Israel Election Compass In collaboration with the Israel Democracy Institute a compass was developed for the Israeli Knesset elections of 2009.

Refers to compass correction by Fourier series.

Using a magnetic compass A magnetic compass points to magnetic north pole, which is approximately 1,000 miles from the true geographic North Pole.

The compass must be twisted so that the base of the compass becomes horizontal, as accomplished using the spirit level incorporated in it.

The compass can be corrected in three ways.

Robotics.com Example implementation for digital solid state compass.

Deviation refers to the response of the compass to local magnetic fields caused by the presence of iron and electric currents one can partly compensate for these by careful location of the compass and the placement of compensating magnets under the compass itself.

ARobot Digital Compass App Note How a tilt sensor works.

When a sample of tissue or fluid is removed with a needle in such a way that cells are removed without preserving the histological architecture of the tissue cells, the procedure is called a needle aspiration biopsy.

The true explanation was reserved for Faraday, namely, that electric currents are induced in the copper disc by the cutting of the magnetic lines of force of the needle, which currents in turn react on the needle.

Creagh Osborne, Superintendent of Compasses at the British Admiralty, introduced his Creagh Osborne aircraft compass, which used a mixture of alcohol and distilled water to damp the compass card.

Shen Kuo pointed out that a needle prepared this way sometimes pointed south, sometimes north.

There's a metaphor which I love living like a drawing compass.

For a table of the thirty two points, see compass points.

The four elements of the ７Cs Compass Model A formal approach to this customer focused marketing mix is known as Four Cs (Commodity, Cost, Channel, Communication) in ７Cs Compass Model.

History can be an essential compass when past experience provides unambiguous headings.

Also he made a molten sea of ten cubits from brim to brim, round in compass, and five cubits the height thereof and a line of thirty cubits did compass it round about.

How canst thou bear with that whereof thou canst not compass any knowledge ?