Concept
Electromagnetic field
Overview
physical field produced by electrically charged objects
Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).
Possible passages
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This dualism still confronts us in unextenuated form in the theory of Hertz, where matter appears not only as the bearer of velocities, kinetic energy, and mechanical pressures, but also as the bearer of electromagnetic fields. Since such fields also occur _in vacuo_--i.e. in free ether--the ether also appears as bearer of electromagnetic fields. The ether appears indistinguishable in its functions from ordinary…
Albert Einstein, Sidelights on Relativity
Names Electromagnetic field several times; opens on Electromagnetic field.
And then Maxwell asked himself whether he could make this choice and that of the two energies _T_ and _U_, in such a way that the electrical phenomena would satisfy this principle. Experiment shows us that the energy of an electromagnetic field is decomposed into two parts, the electrostatic energy and the electrodynamic energy. Maxwell observed that if we regard the first as representing the potential energy _U_…
Henri Poincaré, The Foundations of Science
States what Electromagnetic field is; names Electromagnetic field.
The effects in question are concerned with the radiation of light from a molecule which has been excited by some collision. Light consists of waves of vibration in the electromagnetic field. After a complete wave has passed a given point everything at that point is restored to its original state and is ready for the next wave which follows on.
Alfred North Whitehead, Science and the modern world
States what Electromagnetic field is; names Electromagnetic field twice.
Related ideas
- Light
- Maxwell's equations
- Quantum mechanics
- Special relativity
- James Clerk Maxwell
- Thales of Miletus
- Electron
Place in the tradition
Part of Meaning of life.