CMS MAGNETICS - 6x6" Green Magnetic Flux Viewing Film for Revealing Hidden Magnetic Field Patterns in Permanent Magnets for S

4.3 4.3 out of 5 stars | 1,565 ratings

Price: 14.99

Last update: 10-01-2024


About this item

SIZE & FILM TYPE - 6x6 Inch single color Green Film.
GREEN FILM - Metal nano-particles suspended in an oil that tilts in reaction to a magnetic field in close proximity to the film. Light bounces off the tilt of these nano-particles towards your eye to review the hidden magnetic patterns of that magnet. Different magnet shapes will give off different magnetic field patterns. This film is green but will showcase different shading of the green based on the tilt of the nano-particle positions.
SHELF LIFE & LAMINATION - Because these films are created with tiny nano-particles suspended in a liquid, over time the effectiveness of the film may decrease. You can increase this shelf life by having your film laminated to prevent leakage, scratches, and other damages to the film.
REUSE, RESET - Both films are reusable, but the olive film will have a much longer shelf life than the green film. The olive film automatically resets itself, while the green film may need to be reset by quickly swiping a magnet parallel to the film several times. These products are offered in various sizes that best suit your needs. We also have a portable wallet size pvc card of the olive film. The films can be laminated to increase the life of the film and protect it from bending and damage.
APPLICATIONS & GIFTING - These films have a multitude of creative applications. They are one of the best STEM educational activities to introduce students to the science and magic of magnetism. They're great for science projects and serve as a teaching tool for teachers in the classrooms. They also make great gifts for any age and gender. The recipients will spend countless hours having fun exploring and revealing hidden invisible natural forces they never knew existed. Give the gift of magic.

Top reviews from the United States

Chuck E
5.0 out of 5 stars Great for finding hidden alien devices in your head
Reviewed in the United States on September 7, 2024
Now that i got your attention, this green magnetic field picker upper is a fun toy for the kids when they are playing with magnets. Good for seeing the patterns of magnetic fields, and easy to wipe the pattern off the paper with another magnet. Not sure about finding hidden alien devices, but you never know.
Purchaser
5.0 out of 5 stars Super cool. Better than the green ones.
Reviewed in the United States on August 1, 2024
Works great. Gives you a color gradient for how intense the magnetic field is. Better than the green magnetic paper that only gives you a solid black color of where the magnetic field is.
Adam B
4.0 out of 5 stars I feel like I overpaid, but it's a neat gadget all the same
Reviewed in the United States on June 6, 2024
These sheets are very sensitive, although you do need to use them in a well-lit environment, as the images are inherently pretty dark. Also the film will leave ghost images behind indefinitely after you remove the magnet, so you might want to periodically degauss it by wiping it with a large refrigerator magnet that can hit the entire film in one pass. Sort of like erasing one of those old Magna Doodles.
While it's certainly fun to just look at magnets, especially some of the complex ones that use alternating magnetic poles to have magnets that "turn off" by twisting 180 degrees so the magnetic fields cancel, etc. It's also handy for precisely locating magnets that are embedded inside objects, like the magnet in my laptop that holds the lid shut, or pinpointing exactly where the magnets are on cabinet doors so I know where to put a pad of felt to muffle the slam, etc.
Elizabeth L.
5.0 out of 5 stars So much fun!
Reviewed in the United States on July 31, 2024
I saw this film on a YouTube video. It showed where all the magnets are in the iPad. I got it because I’m curious and had to see it in person. For the low price it’s well worth it. I’m not sure what else it could be used for but I’m sure there’s something. I did send this to the grandkids and they had fun with it too.
For the cost of a kids meal it’s fun to get and try out.
Baba Menkah
5.0 out of 5 stars Size is functional. Prefer a larger size.
Reviewed in the United States on September 12, 2024
Size is functional. Prefer a larger size.
anav
3.0 out of 5 stars psychedelically cool
Reviewed in the United States on October 19, 2013
I bought the following related items together, so I'm putting the reviews together as well for your convenience.

A) <Magnetic Field Demonstrator, Student, Value Pack>
> 1 star
> Pro - cheap.
> Con - filings too big & heavy to align with or indicate the flux lines, so you just get "indicators" that clumps together without revealing much insights.

B) <CMS Magnetics® 4" x 6" Green Magnetic Field Viewing Film, Fun!>
> 3 stars
> Pro - a) it really does look very cool, & weird, & psychedelic; & b) shows magnetic strength.
> Con - a) but it gives you little bang for the bucks (when including shipping); b) it doesn't show flux lines; c) thin so may be damaged if not careful.

C) <American Educational Steric Demonstrator, For Magnetic Line of Force>
> 2 stars
> Pro - it sort of works, showing the magnetic flux lines.
> Con - a) but it's overpriced for its quality; b) flimsily made with thin brittle plastic pieces glued together as if toddlers; c) pointers don't rotate well and are spaced too far, giving very low resolution; d) awkward to handle, & not designed well.

D) <Dowling Magnets Mysterious Magnet Tube>
> 4 stars
> Pro - a) reasonably priced; & b) works surprisingly well showing the flux field.
> Con - a) not as good as <3B Scientific Three Dimensional Magnetic Field Lines Device, 140mm x 140mm x 120mm Size, 21mm Hole Diameter> ($174 as of 10/18/13), but doesn't cost as much either; b) without fluid to help counter gravity (like the expensive one above), flux lines droop.

>>Conclusions:
1) For neat magnetic visual effects, get (B) of above; though methought overpriced, but still affordable.
2) For demonstrating magnetic flux lines, get (D) of above for its good value & say ~80% demonstrative effectiveness; unless you can afford the high quality alternative mentioned above.
3) Forget (A) & (C).
Mohammed Hussein
5.0 out of 5 stars good product i can't imagine that
Reviewed in the United States on August 10, 2024
it is arrived in good condition...
and i use it to discover the magnate area in any device i use .
Patricia
1.0 out of 5 stars This item is either faulty or sucks
Reviewed in the United States on March 10, 2020
I am very disappointed in this item. I will be returning this product. Aside from the disappointing size, 4”x6”, it has permanent magnet marks on it. It came in the same box that contained a magnet detector in it. That detector contains a very, very tiny magnet in it and during shipping, it left these black marks on the film. The swirl mark is one that I made with that same magnet detector to see if that is what made the mark. It’s been almost 12 hour since I picked this package up and tested it myself and neither mark has faded yet. The marks have not changed at all. I planned on using this as part of a science project in my kindergarten classroom. I am very disappointed. I would strongly recommend NOT purchasing this item.
Customer image
Patricia
1.0 out of 5 stars This item is either faulty or sucks
Reviewed in the United States on March 10, 2020
I am very disappointed in this item. I will be returning this product. Aside from the disappointing size, 4”x6”, it has permanent magnet marks on it. It came in the same box that contained a magnet detector in it. That detector contains a very, very tiny magnet in it and during shipping, it left these black marks on the film. The swirl mark is one that I made with that same magnet detector to see if that is what made the mark. It’s been almost 12 hour since I picked this package up and tested it myself and neither mark has faded yet. The marks have not changed at all. I planned on using this as part of a science project in my kindergarten classroom. I am very disappointed. I would strongly recommend NOT purchasing this item.
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