Magnetometers react very strongly to iron and steel, brick, burned soil, and many types of rock, and archaeological features composed of these materials are very detectable.

Magnetometers can detect only magnetic ( ferrous ) metals, but can detect such metals at a much larger depth than a metal detector ; magnetometers are capable of detecting large objects, such as cars, at tens of meters, while a metal detector's range is rarely more than 2 meters.

Magnetometers used in the Earth sciences are called geophysical surveys, a term that also embraces a wide range of other geophysical techniques including gravity, seismic refraction, seismic reflection, electromagnetics ( EM ), induced polarisation ( IP ), magneto-tellurics ( MT ), controlled source magneto-tellurics ( CSAMT ), sub-audio magnetics ( SAM ), mise-a-la-masse, resistivity, self Potential ( SP ) and Very Low Frequency ( VLF ).

Magnetometers are distinct from metal detectors, which detect metallic objects by detecting their conductivity.

Magnetometers are also used to detect archaeological sites, shipwrecks and other buried or submerged objects.

Magnetometers measure minute differences in the magnetic field of the earth caused by ferrous concentrations ( and iron objects ) in the soil, thermo-remnant magnetism of fired clays, and differences in the magnetic susceptibility of disturbed soils.

Magnetometers such as the German Forster are used to locate ferrous ordnance.

Magnetometers assist mineral explorers both directly ( i. e. gold mineralisation associated with magnetite, diamonds in kimberlite pipes ) and, more commonly, indirectly, such as by mapping geological structures conducive to mineralisation ( i. e. shear zones and alteration haloes around granites ).

Magnetometers are used in directional drilling for oil or gas to detect the azimuth of the drilling tools near the drill.

Magnetometers can also locate zones ignited by lightning ) and map siderite ( an impurity in coal ).

Magnetometers monitor the auroral zone as well as the equatorial region.

Magnetometers are one of the primary tools used to locate world-class deposits of gold, silver, copper, iron, tin, platinum and diamonds.

Magnetometers detect minute deviations in the Earth's magnetic field caused by iron artifacts, kilns, some types of stone structures, and even ditches and middens in archaeological geophysics.

Magnetometers can measure the magnetic fields of planets.

Magnetometers can give an indication of auroral activity before the light from the aurora becomes visible.

Airborne Magnetometers detect the change in the earth's magnetic field using sensors attached to the aircraft in the form of a " stinger " or by towing a magnetometer on the end of a cable.

Magnetometers are also a component instrument on the Mercury MESSENGER mission.

Magnetometers can also be classified as " AC " if they measure fields that vary relatively rapidly in time, and " DC " if they measure fields that vary only slowly ( quasi-static ) or are static.

* Magnetometers, usually of the flux gate type.

Magnetometers may also use a variety of different sensor types.

He was very tanned -- big hands might have torn him from a Coca-Cola poster.

`` There's only one thing to move him fast, and we have it right here in this very store ''.

The fear of disease was formerly very much the kind of fear I have tried to describe.

Isn't it a bit odd that the three states of Southern New England ( Massachusetts, Connecticut, and Rhode Island ) have had state institutions of university status only in the very recent past, these institutions having previously been A & M colleges??

Is it not ironical that Roger Williams's state, Rhode Island, should have been the very last of the forty-eight to establish a state university??

What is more, the legends have become so sacrosanct that the very habit of self-examination or self-criticism smells of low treason, and men who practice it are defeatists and unpatriotic scoundrels.

The problem is rather to find out what is actually happening, and this is especially difficult for the reason that `` we are busily being defended from a knowledge of the present, sometimes by the very agencies -- our educational system, our mass media, our statesmen -- on which we have had to rely most heavily for understanding of ourselves ''.

What I want is to have this evidence come before Congress and if the Attorney General does not report it, as I am very sure he won't, as he has refused to do anything of the kind, I then wish that a committee of seven Representatives be appointed with power to take the evidence.

The wear and tear of life have taught me that very few friends of mutual friends long to see foreign strangers, but I planned on being the soul of tact, of giving them plenty of outs was there the tiniest implication that their cups were already running over without us.

Upon second thought we were forced to realize that we have very few reliable historical benchmarks against which we might compare the present situation, and that conclusions that present-day students are `` more '' or `` less '' religious could not be defended on the basis of our data.

Even so, Edward's ambassadors can scarcely have foreseen that five years of unremitting work lay ahead of them before peace was finally made and that when it did come the countless embassies that left England for Rome during that period had very little to do with it.

Although one meets with occasional extremists like Zachrisson or, very recently, Arthur Wade-Evans the majority of scholars have taken a middle position between the extremes of scepticism and gullibility.

A nation may go to war on some trifling pretext, when in reality it may have been guided by an unconscious instinct that its very life was at stake.

Earl agreed, and Lewis said that it would have been very different if his wife had been with him.

Venn and others have dealt with sports and pastimes at Cambridge in Milton's day with not very specific results.

Mankind, as a result, attains previously undreamed of levels of civilization and culture, a golden age which the Overlords, a very evident symbol of science, have helped produce by introducing reason and the scientific method into human activities.

And they have done this on a very large scale, with a veritable flood of novels and stories which are either dystopias or narratives of adventure with dystopian elements.

Not all recent science fiction, however, is dystopian, for the optimistic strain is still very much alive in Mission Of Gravity and Childhood's End, as we have seen, as well as in many other recent popular novels and stories like Fred Hoyle's The Black Cloud ( 1957 ) ; ;

and among works of dystopian science fiction, not all provide intelligent criticism and very few have much merit as literature -- but then real quality has always been scarce in science fiction.

Lawrence Ferlenghetti and Bruce Lippincott have concentrated on writing a new poetry for reading with jazz that is very closely related to both the musical forms of jazz, and the vocabulary of the musician.

Without the good magazines, without their book reviews, their hospitality to European writers, without above all their awareness of literary standards, we might very well have had a generation of Krim's heroes -- Wolfes, Farrells, Dreisers, and I might add, Sandburgs and Frosts and MacLeishes in verse -- and then where would we be??

His very honest act called up the recent talk I had with another minister, a modest Methodist, who said: `` I feel so deeply blessed by God when I can give a message of love and comfort to other men, and I would have it no other way: and it is unworthy to think of self.

For some compulsive reason which would have fascinated Dr. Freud, Communists of all shapes and sizes almost invariably impute to others the very motives which they harbor themselves.

Recent statements by the President and Defense Department spokesmen have, to the contrary, assured us that our lead is very great.

For something, clearly, has gone very, very seriously wrong in Soviet-Chinese relations, which were never easy, and have now deteriorated.