Ndfeb magnet is harmful to people?
Average magnet magnetic induction intensity is not high, not form a harm to human body.
If you are in a part of the job for a long moment, it is still in discussion, like acupuncture same mystery, as if it is better than acupuncture.
But as a result of the CRT is by scanning of electronic current under the influence of magnetic field, thus to CRT trouble happened.
Plus imaging tube in the magnetic field, magnetic field can distort the electron flow against normal scanning track.
Result in image distortion (
Right and wrong and color display)
And brown spots (
Only color display)
General multimedia speakers are using magnetic shielding skills, placed around the CRT will not form any effect, but take out the speaker magnet for CRT scan will see the obvious effect.
But, it will not form any harm to the use of CRT life, most only caused by single point burn long time image distortion.
If the magnet still deformation after removal of the image, is due to the tube inner surface of the metal palette is magnetized, only need to display the demagnetization effect is open, demagnetization has been removed, so the old monitor will need to open a few switch back.
About qualified hard disks, magnetic shielding skills properly.
You can't blow up it from the outside by magnetic fields.
Experts have calculated that if the magnetic field reached the intensity, was enough to suck out all the iron in your body.
The floppy disk and tape is what we really should pay attention to, but it is who still use floppy disks to manage their bank CARDS (
With a magnetic stripe)
What about the mainboard or other, you don't need to be careful of what would be a bad result.
Once friends problems mentioned on the phone, not due to the magnetic field, but due to the change of the electromagnetic field.
Changing the electromagnetic field of electromagnetic radiation to the surrounding space, while the stable magnetic field, the magnet will not outward radiation of electromagnetic wave.
Needless to say, now the electromagnetic signal trouble appliances electromagnetic compatibility of these concepts is mainly aiming at problems such as electromagnetic wave pollution to power network, rather than for human health problems.
When the phone around on a tape recorder, tape recorder called noise is very big, much worse than shortwave radio.
As for the computer, I didn't try, also have never seen.
One day we give it a try.
But I don't think this is what, unless the machine is too bad.
High frequency) electromagnetic waves
The harm to people all over the world are still in discussion quickly, what is the cell phone radiation standard, etc. , there are many.
However, if a person long time exposed to high intensity in the electromagnetic field (
Note that this is a constantly changing electromagnetic fields, rather than a stable magnetic field)
, he could cause cancer.
The frequency of the CPU and motherboard bus has now entered the decimeter microwave band, the people who opened the case long time play should be pay attention to.
In a word, the magnet is very safe, don't be afraid, microwave oven though not prevent, but also should pay attention to good, try not to open the lid, and turn over, as far as possible away from as far as possible, don't turn to the people.
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