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A device for introducing a static magnetic null field is disclosed. The device is comprised of a holder for magnets, wherein the magnets are arranged so that the null field is generated in the area of a sample of cells, tissue or other cellular material. The device is configured to maintain the magn

A device for introducing a static magnetic null field is disclosed. The device is comprised of a holder for magnets, wherein the magnets are arranged so that the null field is generated in the area of a sample of cells, tissue or other cellular material. The device is configured to maintain the magnetic null field for long periods of time. The device can function with bar magnets or certain electromagnets.

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What is claimed is: 1. A device for establishing and maintaining a static magnetic null field in a substantially fixed relationship to a quantity of cellular material comprising: a holder having a first arm and a second arm; means for adjusting the relative distance between the first arm and the se

What is claimed is: 1. A device for establishing and maintaining a static magnetic null field in a substantially fixed relationship to a quantity of cellular material comprising: a holder having a first arm and a second arm; means for adjusting the relative distance between the first arm and the second arm; attachment means for affixing a magnet to each of the arms in the holder in a manner so that a magnetic null field is formed in an area between the magnets; and wherein each of the arms has an attached magnet of predetermined magnetic strength. 2. The device of claim 1 wherein each magnet affixed to each arm has a magnetic strength of between about 300 Gauss and about 1,000 Gauss. 3. The device of claim 1 wherein each magnet affixed to each arm has a magnetic strength of about 500 Gauss. 4. The device of claim 1 wherein each magnet affixed to each arm has a magnetic strength of about 750 Gauss. 5. A device for establishing and maintaining a static magnetic null field in a substantially fixed relationship to a quantity of cellular material comprising: at least a first arm and a second arm, the first arm and second arm being joined by a flexible hinge; each arm having flexion means located approximately medially along each arm; attachment means for affixing a magnet to each arm; and wherein each of the arms has an attached magnet of predetermined magnetic strength. 6. The device of claim 5 wherein each magnet affixed to each arm has a magnetic strength of about 500 Gauss. 7. The device of claim 5 wherein each magnet affixed to each arm has a magnetic strength of about 750 Gauss. 8. A sample holder for maintaining a static magnetic null field in a substantially fixed relationship to a quantity of cellular material comprising: four walls each wall having an exterior surface, the four walls defining a box with two pairs of two opposing walls and an opening sized to allow a specimen holder to fit in the box; attachment means for affixing a magnet to the exterior surface of each of the two opposing walls of one of the pairs of two opposing walls; each exterior surface of the two opposing walls of one of the pairs of opposing walls having affixed to it a magnet of predetermined magnetic strength; and a specimen holder capable of retaining a quantity of cellular material is fitted into the box through the opening. 9. The device of claim 8 wherein each of the four walls is formed from polyvinylchloride plastic. 10. The sample holder of claim 8 wherein each magnet affixed to each exterior surface of the two opposing walls of one of the pairs of opposing walls has a magnetic strength of between about 300 Gauss to about 1,000 Gauss. 11. The sample holder of claim 8 wherein each magnet affixed to each exterior surface of the two opposing walls of one of the pairs of opposing walls has a magnetic strength of about 500 Gauss. 12. The sample holder of claim 8 wherein said specimen holder has a capacity for holding approximately 20 cc's of liquid. 13. The sample holder of claim 8 wherein the specimen holder is formed from glass. 14. The sample holder of claim 8 wherein each magnet affixed to each exterior surface of the two opposing walls has a height; the specimen holder holds a quantity of cellular material which has a height; and the height of each magnet affixed to each exterior surface of the two opposing walls is approximately the same as the height of the quantity of cellular material in the specimen holder.