This is part of a series of Podcasts giving slightly deeper science insight necessary to understand astrophysics. This deals with Electric Fields
The ideas of Scalar Fields (like pressure) and Vector fields (Gravity, electrical, wind) is discussed.
Lord Kelvin (Laws of thermodynamics) is the ultimate Victorian scientist introduced the idea of fields and wasn't happy when Maxwell came up with the field theory of light.
The art of field lines was in fact an religious art extension used by Faraday.
Use of grass seeds in oil to show "field lines" using my favorite high voltage generator is explained.
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