On several occacions we have seen spontaneously electromagnetic fields which apparently has no connection to things around the field.
Human technology can generate electromagnetic fields like:
  •      Signals from mobile phones.
  •      Fields from electrical appliances.
  •      Antennas and transmitters.

There are also sources in nature, which are capable of forming electromagnetic fields.
  •      Lightning
  •      Movement of matter, air and water moving "packages" (charges) of electricity.

There are, undoubtedly processes that we do not know, and can generate these fields. Some of them are unexplained, and these are the fields we measure with equipment such. as EMF-meters.
These fields are thought to be related to:
  •      Ghosts
  •      Poltergeist activity
  •      Hauntings  and other paranormal activity

We will try to explain  these fields, and what characteristics they have.

The phenomenon of spontaneous  fields has been known since the late 1800s. The physicist Nikola Tesla measured these spontaneous fields, and could not find an explanation.
He chose a, for us, supernatural explanation. You can see a letter he sent to the Red Cross Christmas in 1900. However, it is not easy to decipher what he really meant. Tesla's genius sent him more and more on the brink of what one would call insanity.


 

...
To the American Red Cross, New York City.

The retrospect is glorious, the prospect is inspiring: Much might be said of both. But one idea dominates my mind. This — my best, my dearest — is for your noble cause.

I have observed electrical actions, which have appeared inexplicable. Faint and uncertain though they were, they have given me a deep conviction and foreknowledge, that ere long all human beings on this globe, as one, will turn their eyes to the firmament above, with feelings of love and reverence, thrilled by the glad news: "Brethren! We have a message from another world, unknown and remote. It reads: one… two… three…"

Christmas 1900

Nikola Tesla
...


Here is the original letter: