what's te concept of Mag Inspection?
336860
Mag inspection utilizes the phenomenon of ' magnetic lines of force' to indicate flaws in metal castings or machinings.\n\nThis only works with pieces made of ' magnetic' material, such as Iron, steel. ( Stainless and aluminum will NOT work ). \n\nA fine powder of Iron Oxide is sprinkled liberally on the piece to be inspected.  A strong magnetic field is applied from a coil.  If a crack or void exists, the uniform lines of magnetic force will be ' distorted' around the flaw, making the Iron Oxide gather in that area.  The area can then be marked with a grease pen, and analyzed for quality control, rejected, or repaired.
418317
http://en.wikipedia.org/wiki/Magnetism
923259
SEM scans the surface of the object while in TEM the beam passes through the object\nTEM also have higher resolution
552112
It's what's on the inside that counts.\n\nDon't judge a book by its cover.\n\nAll that glitters isn't gold.\n\nAppearances are deceiving.\n\nLooks can be deceiving.\n\nGood things come in small packages. (you wouldn't expect it)\n\nLook with your eyes, judge with your soul.\n\nLook deep before you leap (to any conclusions)
80341
regular magnets are natraly magnitised, they maintain their magnetic properties with out aid of an outside force\nelectro magnets use a coil of wire, with a curent passing through it, wraped around a piece of metal to create the magnitism. when you remove the curent, it loses its magnetism.
732046
Actually, a lot of what you are envisioning is happening now.  The concept is called invariance and in general it does occur from the astronomical scale to the atomic scale.  Instruments are now available which do allow for the indirect imaging of actual electron clouds around individual atoms.  \n\nTwo types of microscopy are used to achieve this, atomic force microscopy and scanning probe microscopy.  The major difficulty with these instruments is accounting for the interference of the probe tips in the data acquired.  \n\nRadioactive decay and scattering experiments have also been developed to find some of the answers you are looking for.  Nuclear physicists have found that each time known particles are found by theoretical math or experiment to have smaller parts, that the smaller parts usually have still smaller parts within them.  Though commonly the divisions are leptons and bosons,  and quarks.\n\nSo, the two fields of study that may lead to your answers are nuclear physics and nanoscience or nanotechnology.
133598
Take a professional to look at it
598099
For an image to be seen it has  to reflect light. Light doe snot always travel in a straight line. Magnification is the ratio of the height of the image to the height of the object. In case the  magnification is negative, the image is inverted.
576564
it could be a job title?  \n\nor it could be to the type of research. \n\nor it could be that investigation/looking into something must meet a standard of quality. \n\ngood luck.
251328
find an ASTM standard book, they contain every standard for material testing.. including the process, appiled theory behind the experiment and even the equipment needed.
358926
Manuals on how something works (especially computer programs)\n\nMedical articles and others which involve specialist jargon.
451909
Magnifying glass to locate if you can't see them just by looking and tweezers to pick up and put in evidence bag
79551
Personally I don't know, but Sky and Telescope magazine reguarly reviews products like this  The reviews are very complete, and very honest.  Your local public library probably has a subscription, and will have back issues in the shelves.
970639
Read what it contains
146743
You should contact the magazine staff for exact information.
738961
Sorry, you're going to have to be a bit more specific than that. Electromagnetics is a rather broad subject.\n\n~X~
140956
The method used by the media is:\n\nGolds\n(if same number of golds) Silvers\n(if same number of silvers) Bronzes\n(if same number of bronzes) Alphabetical order