A force field is a field of energy that usually blocks something. The force field is common in science fiction and fantasy stories. The ideal of a force field may be from the vector field, thought it resembled the warding spells, the protective magic that was claimed to be used by shamans from long ago.
The plasma window is a real-live object that resembles the force field, it provides a separation between vacuum and gas. There is only one true ideal of creating a 'force shield': using an electric field to change the way metallic items move, although no power is known to be powerful enough to do this.
- Electrostatic "invisible wall" encountered in a plastic film factory Report from an electrostatics industry symposium.
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