MAGNETIC VIEWING FILM 

MAKES MAGNETIC FIELDS VISIBLE 

3" X 3" SHEET

This green magnetic viewing film will become lighter or darker when a magnetic field is applied. It turns dark when the field lines are perpendicular the the surface, and it turns light when the field lines are horizontal, i.e., across the surface. If a magnet is placed under it, with one of the poles facing the film, it will show the magnet as dark with a light outline. The effect gets interesting when you have lots of magnets, or magnets that are polarized in a unique way. The entertainment value of this stuff is unmatched, even by the likes of playing Pac-man or watching professional wrestling!

Magnetic viewing film is made of millions of tiny magnetic flakes suspended in clear oil. This oil is then sandwiched between two sheets of clear plastic.





The general principle of operation is that magnetizable [[nickel]] particles are suspended in a [[colloid]]al form in a gelatinous material.  This allows enough freedom for the particles to align with an externally applied magnetic field - thereby displacing the colored fluid and causing a color change at the surface of the film.

Magnetic viewing film is really fun stuff. The only dangers involved are if Neodymium magnets are allowed to snap to together from a distance...in this case they can shatter and send sharp chips flying. Larger magnets can also pinch fingers rather painfully. Wear safety goggles and gloves when handling large magnets. Small ones are very safe unless taken internally (ask Noah about this one...)

Magnetic viewing film is really fun stuff. The only dangers involved are if Neodymium magnets are allow

           WARNING:
      This is highly technical science--not for dummies!

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SOME TIME AGO, THE NUMBER AND VARIETY OF THE ITEMS WE SELL BECAME TOO LARGE TO DETERMINE SHIPPING COST FOR. THE TIME REQUIRED TO RESEARCH SHIPPING COST AND THE DIFFICULTY IN GETTING THE INFORMATION TO THE BUYER EXCEEDED ALL OTHER LABOR COST COMBINED. TO RESOLVE THIS DIFFICULTY, WE CREATED A DATA BASE WHICH ACCUMULATED THE SHIPPING COST FOR EACH ITEM, DIVIDED THOSE COST BY THE NUMBER OF ITEMS SOLD AND CREATED A FIXED COST FOR SHIPPING AND HANDLING AS AN AVERAGE COST. THIS MEANS THAT SOME BUYERS WILL PAY MORE THAN THE ACTUAL COST OF SHIPPING AND HANDLING AND OTHERS WILL PAY LESS, BUT THE COST ARE LESS FOR EVERYBODY BECAUSE YOUR ORDER REQUIRES MUCH LESS TIME TO SHIP.

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