An
Electro- Magnetic
Miscellany
Dr.Colin Pounder. Copyright 1990.
All science tries to reduce the diversity of things
in the world to mere differences of appearance, and treats as many things as
possible as variants of the same stuff. When Benjamin Franklin found out that
lightning is one form of electricity, he made a scientific discovery, which
proved to be but a step in a very great science, for an amazing number of things
can be reduced to this same fundamental "something" , this protean substance
called "electricity": the force that holds the firmament together, the crackle
of a cat`s fur, the heat in a flat-iron, the flickering Northern Aurora.
Electricity is one of the essential things in the world that can take on a vast
variety of forms. Its wide mutability makes nature interesting, and its ultimate
oneness makes science possible.` Susanne K. Langer Introduction It is my intention to take you on a journey
to look at some of the forms this protean stuff called `electricity`
takes. True science is an application of childlike curiosity about the
Universe. The investigations of
electricity were made originally by enthusiastic amateurs - lovers of their
subject. Today most amateurs are as enthusiastic as ever and willing to help
anyone interested. No one has yet given an
acceptable answer to the question:- What is
electricity? ---------------------------------------------------------- Of course we can try to answer . We observe, we
suggest a hypothesis, we do a few experiments (restricted observations) modify
our hypothesis or throw it out and in time maybe dare to present a theory.
In the 18th and most of the
19th centuries electricity was thought of as a fluid. These days the
activities of electrons and protons are used to try and explain electrical
phenomena. Unfortunately if you should try to get a close look at an electron
using the latest model it does a Cheshire Cat on you and you are left with a
grin, or a grimace, depending how seriously you take all the `hypothesising`
which goes on. At best we might say matter seems to be made
of electricity and most of the structures and activities of matter involve
electricity behaving in one way or another. But then again others,LeBon, for
instance have suggested that electricity is a property of matter. On this journey we will see electricity
manifested in natural phenomena, early discoveries and speculations and
investigations by amateurs of the 17th and 18th centuries.
There follows some in depth and detailed information on Volcanic electricity - I
will tell you how I discovered the electrically charged solute particles which
give volcanic lightning ;Thunderstorms and a collection of electrical and
magnetic items in Nature. In some instances I will suggest some simple
experiments. These will not involve great expense money wise but should put your
talents to improvise to real benefit. The idea in each case will be for you to
see for yourself and experience some phenomenon; after all you are your best
teacher. You are you know!
- Only you know what you find difficult - easy - and the way which works best
for you. A good teacher should endeavour to get as
near to each individual student`s way of thinking and thereby be of some use.
All other approaches are not teaching but attempts at mere imposition often of
poorly understood material. What you
have learned by yourself leaves a track in your mind which can be used
again. SAFETY
WARNING
Under no circumstances experiment with
electricity without a thorough knowledge of safety in the use of materials and
electricity. Nearly all basic circuits can be studied with
3volts. Do not go above 9volts in your early stages. Never take
chances. Beware of circuits where capacitors and or large inductors are used.
The electrostatic experiments here involve very high voltage but extremely low
currents. You experience these in your daily life anyway from sparks from
clothes to shocks from the carpet, the dog and the cat. If you do not know what I am talking about be content
for the time being to read, learn,enjoy and above all have fun. Science which is
not fun is not science. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ INDEX Experiments With Frictional
Electricity Charged Solute Particles
Discovery Leidenfrost Tractatus 1756 Translation Asymmetrical and Dust Charging
June 2011. Leidenfrost summarised at http://www.freewebs.com/gabriel7/index.htm ALSO Photo Album of material taken since page was first initiated https://volcaniclightning.tripod.com/recent
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
G.C.Lichtenberg.
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