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3 x 3 Green Magnetic Field Viewing Film, Fun! - Encased within the green film are millions of magnetic particles suspended in oil. The viewing film will become lighter or darker when a magnetic field is applied. It turns dark when the field lines are perpendicular to 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 film is highly flexible and can be easily wrapped around objects.
Feature 3 x 3 Green Magnetic Field Viewing Film, Fun!
- 3" Length x 3" Width
- Wonderful educational tool
- Place directly on surface of magnetic material to expose field
- Highly flexible
- Green micro-encapsulated film
This review is from : 3" x 3" Green Magnetic Field Viewing Film, Fun!
Advertising Pic is a bit misleading . I'm not sure how the advertising picture was created, but the actual magnetic field film is paper thin and hand cut to the size ordered. There is no backlit green glow. I had the impression that the item was a bit thicker/stronger... perhaps because of the description of millions of metallic particles held in an oil suspension... who knew you could do that in the thickness of a sheet of paper? That said, it does reveal the magnetic field of magnets held beneath it. The field does not disappear when the magnet is removed, but stays as is until another magnet is used to change it. It is an interesting item, but as easy to lose as a small scrap of paper.
Advertising Pic is a bit misleading . I'm not sure how the advertising picture was created, but the actual magnetic field film is paper thin and hand cut to the size ordered. There is no backlit green glow. I had the impression that the item was a bit thicker/stronger... perhaps because of the description of millions of metallic particles held in an oil suspension... who knew you could do that in the thickness of a sheet of paper? That said, it does reveal the magnetic field of magnets held beneath it. The field does not disappear when the magnet is removed, but stays as is until another magnet is used to change it. It is an interesting item, but as easy to lose as a small scrap of paper.
note the size . The picture is misleading. This thing is small 3x3 inches. The contrast is also not nearly as clear as shown.
Cons Review
Great for basic viewing . I used this to expand knowledge of flux field understanding. It is what it says but without experience of expectation will be somewhat disappointing. It is all that is available at this time so if you want to view the flux field use this or paper and iron filings. Ferro fluid is fun but messy. This is not messy.
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Product Details
EAN : 0857671001597UPC : 857671001597
Brand : CMS Magnetics
Binding : Toy
Manufacturer : CMS Magnetics
Manufacturer Maximum Age : 99 years
Manufacturer Minimum Age : 12 months
Publisher : CMS Magnetics
Studio : CMS Magnetics
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Where To Buy
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